Bolthole Index

Washington County, Rhode Island

Building permits, zoning and land rules in Washington County, Rhode Island

49Index Score / 100
#1 of 5 in Rhode Island

Washington County, Rhode Island has no county government, so building permits and zoning approval both come from the city or town where the parcel sits12. Each municipality sets its own zoning, while the statewide Rhode Island Building Code governs construction34. Septic permits do not move to the towns: the Rhode Island Department of Environmental Management (RIDEM) approves septic systems for every address in Washington County5.

At a glance

Building permit
Required for most construction; apply to the building official in the parcel's municipality2
Zoning
No county-administered zoning; municipal ordinances and maps control13
Septic permit
RIDEM approval is required before installing, altering or repairing a system5
Owner-builder
Contractor-registration exemption for an owner-occupied single-family home when no compensated helpers assist; building permits still apply62
Well permit
Some municipalities require one; use a licensed driller and file the state completion report7
Permit fees
Assessed by the municipality under the statewide fee framework; check that town's schedule8
Building code
Statewide code using adopted model codes with Rhode Island amendments4

Who to call

Building permits

South Kingstown Building & Zoning Department (example town office; Washington County has no county government)

Building, electrical, mechanical and plumbing permits and inspections for the Town of South Kingstown; every other Washington County town runs its own building department instead

(401) 789-9331 x1225

180 High Street, Wakefield, RI 02879

Zoning

South Kingstown Zoning & Code Enforcement (example town office; Washington County has no county government)

Zoning districts, setbacks, code-enforcement complaints and zoning-violation reports for the Town of South Kingstown

(401) 789-9331 x1224

180 High Street, Wakefield, RI 02879

Septic permits

Rhode Island DEM, Office of Water Resources, OWTS Program

Onsite wastewater treatment system (septic) permits, site evaluations and inspections statewide, including all of Washington County

(401) 222-3961

dem.owts@dem.ri.gov

235 Promenade Street, Providence, RI 02908-5767

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

Going off-grid in Washington County means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Washington County, Rhode Island?

Washington County construction, enlargement, alteration, removal, demolition, regulated equipment work and a change between code-defined occupancy groups require a written application and permit from the building official in the parcel's municipality; qualifying ordinary repairs are exempt2. Rhode Island's statewide code governs the work, although municipal building departments administer permits and enforcement4. The current code took effect December 1, 2025 and incorporates the 2021 model building and residential codes, the 2023 electrical code and the 2024 energy code with Rhode Island amendments4. An owner occupying or intending to occupy a single-family home may perform the work without contractor registration if no compensated helpers assist; building permits and applicable specialty-trade requirements still apply62. Municipalities assess permit fees under Rhode Island's statewide fee framework, so obtain the applicable town's current schedule rather than assuming one countywide price8.

Who issues building permits in Washington County, and how do you reach the office?

Washington County has no county building department; apply to the building official for the parcel's municipality12. Hopkinton receives building applications and issues building permits through its own office; RIDEM remains the septic permitting authority910. South Kingstown's Building & Zoning Department is at 180 High Street in Wakefield, RI 02879, reachable at (401) 789-9331 x122511. South Kingstown requires inspections for building, electrical, mechanical and plumbing permit work, prefers at least 24 hours' notice and does not schedule inspections online11. Narragansett requires the contractor to request building inspections 24 hours ahead and complete final inspections and certifications before a certificate of occupancy is issued1213. Rhode Island's municipal e-permitting page lists South Kingstown as a participant; the separate state-building portal serves state buildings and state-owned or state-leased land1415.

Does Washington County have zoning?

Washington County has no county-administered zoning; zoning varies by municipal ordinance and parcel116. Hopkinton, North Kingstown, South Kingstown and Narragansett each administer their own zoning17181920. RIDEM retains septic permitting throughout Washington County, with additional municipal review and local requirements in Narragansett1021. In South Kingstown, enter the address in AxisGIS to identify the zoning district; the town publishes separate setback, dimensional and use materials2223. We could not confirm uniform minimum lot size, setbacks, lot coverage, building height or minimum dwelling size; ask the parcel's municipal zoning office for the district's requirements16. Subdivision requires municipal plat review under statewide law, with the town's planning board or its agents applying local regulations2425.

How do septic permits work in Washington County?

The Rhode Island Department of Environmental Management's Onsite Wastewater Treatment System Program administers septic permits throughout Washington County10. Obtain the DEM Director's written approval of the plans before installing, constructing, altering or repairing an OWTS, except for the rule's specified repair exception, and follow every approval term5. DEM conducts field inspections at key stages of system siting and installation26. None of Washington County's mapped soils escape a “very limited” rating for a conventional drain field, so make the site evaluation an early buildability contingency27. Composting or incinerating toilets are not a general escape from wastewater review: DEM guidance recognizes those fixtures with a graywater holding tank only as a limited zero-discharge option for repairs in critical erosion areas28. Reach the OWTS Program at 235 Promenade Street in Providence, (401) 222-3961, or dem.owts@dem.ri.gov29.

Can you live in an RV or tiny home on your land in Washington County?

We could not confirm a Washington County-wide rule allowing long-term RV living, temporary private-land camping or tiny-home occupancy; ask the building and zoning office for the parcel's municipality before buying or placing a unit16. Rhode Island state-campground rules do not establish permission to live on private land: RV length limits are campsite-specific, and peak-season stays at Charlestown Breachway and East Beach are capped at 7 nights within any 21-day period3031. A small dwelling must satisfy the municipality's allowed uses and dimensional rules as well as the statewide building code34. State law lets a municipality allow a compliant manufactured home as a single-family home on a lot zoned for single-family use, subject to that district's dimensional requirements, but does not require every municipality to allow one32. If the plan is a short-term rental advertised through a hosting platform, Rhode Island requires state registration for qualifying rentals of up to 30 nights, while municipal permission and local registration remain separate questions33. For an accessory dwelling, state law allows one accessory dwelling unit per lot by right on a residential lot of at least 20,000 square feet, or inside an existing structure's footprint, and bars use of the unit as a short-term or hosting-platform rental, with the building permit still issued by the town34.

How do you build a home in Washington County, step by step?

  1. Identify the municipality, then confirm the zoning district, allowed use, lot dimensions and setbacks with its zoning office3.
  2. If dividing the tract, take the plat through municipal subdivision review before treating new lots as buildable24.
  3. Resolve RIDEM septic design and obtain written OWTS approval before system work begins5.
  4. For a private well, ask whether the municipality requires a permit, use a licensed Rhode Island driller and have the contractor file the completion report within 10 days7.
  5. Get the municipality's fee schedule and file the written building-permit application before work starts82.
  6. Build to the statewide code and arrange inspections under the town's procedure435.
  7. Complete the permitted work before occupancy; a newly erected building needs a certificate of use and occupancy from the building official36.

What should you check before buying land in Washington County?

Washington County zoning and subdivision review are municipal, so confirm the parcel's allowed use and any proposed lot split before purchase324. None of the county's mapped soils escape a “very limited” rating for conventional septic drain fields; make OWTS feasibility an early contingency27. A driveway connecting to a state highway needs a RIDOT Physical Alteration Permit before access is made37. Work affecting wetlands, buffers or flood areas may require RIDEM approval; proposed floodplain or floodway fill or structures require a Stormwater Construction and WQC Application with supporting calculations and reports3839. For a well, confirm local permitting and public-water availability with the municipality, and use a licensed Rhode Island driller7. Eligible commercial farmers can apply to the tax administrator for sales-and-use-tax relief on farm equipment and farm-structure materials; that relief does not waive building permits40. Separate wetlands permission for normal farming requires qualifying farm income, tax documentation and best management practices, and does not waive municipal zoning, building or septic rules41.

Watch-outs

  • Do not use South Kingstown procedures for a parcel in another municipality; zoning and private-property permitting are administered locally32.
  • We could not confirm a countywide private-land rule for RV living, temporary camping or tiny-home occupancy; ask the parcel's municipal building and zoning offices before placing a unit3.
  • None of Washington County's mapped soils escape a 'very limited' rating for a conventional septic drain field, so make OWTS feasibility an early purchase contingency27.

Sources

  1. State of Rhode Island and Providence Plantations, quoted and re-checked
  2. Rhode Island Department of Business Regulation Consent Agreement, quoted and re-checked
  3. State of Rhode Island and Providence Plantations, quoted and re-checked
  4. Laws, Rules and Regulations, quoted and re-checked
  5. Rules Establishing Minimum Standards Relating to Location, Design, Construction and Maintenance of Onsite Wastewater Treatment Systems, quoted and re-checked
  6. FAQs for the contractor, quoted and re-checked
  7. Private Well Care, Repairs, and Construction, quoted and re-checked
  8. State Wide Permitting Fee (510-RICR-00-00-21), quoted and re-checked
  9. Town of Hopkinton: Building & Zoning (Washington County), quoted and re-checked
  10. Onsite Wastewater Treatment Systems (OWTS), quoted and re-checked
  11. South Kingstown Building & Zoning Department (example town office; Washington County has no county government) (southkingstownri.gov)
  12. Building Inspection | Narragansett, RI, quoted and re-checked
  13. Building Inspection | Narragansett, RI, quoted and re-checked
  14. Statewide E-Permitting Portal, quoted and re-checked
  15. State Building Permits, quoted and re-checked
  16. Municipal Ordinances, quoted and re-checked
  17. Town of Hopkinton: Code of Ordinances, Appendix A Zoning, Section 5 — District use regulations (Washington County), quoted and re-checked
  18. Town of North Kingstown: Planning and Development | North Kingstown, RI (Washington County), quoted and re-checked
  19. Town of South Kingstown: Zoning Amendments (Washington County), quoted and re-checked
  20. Town of Narragansett: official source (Washington County), quoted and re-checked
  21. Town of Narragansett: official source (Washington County), quoted and re-checked
  22. Building & Zoning Department, quoted and re-checked
  23. South Kingstown Zoning & Code Enforcement (example town office; Washington County has no county government) (southkingstownri.gov)
  24. Rhode Island General Laws Related to Land Use and Planning, quoted and re-checked
  25. Rhode Island Land Use Law, quoted and re-checked
  26. Onsite Wastewater Treatment Systems (OWTS), quoted and re-checked
  27. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  28. OWTS Guidance for Repairs in Critical Erosion Areas, quoted and re-checked
  29. Rhode Island DEM, Office of Water Resources, OWTS Program (dem.ri.gov)
  30. Camping Policies, quoted and re-checked
  31. Camping Policies, quoted and re-checked
  32. R.I. Gen. Laws § 45-24-37. General provisions — Permitted uses (Rhode Island statewide rule), quoted and re-checked
  33. Short-Term Rentals Frequently Asked Questions, quoted and re-checked
  34. webserver.rilegislature.gov, quoted and re-checked
  35. Building & Zoning Department | South Kingstown, RI, quoted and re-checked
  36. R.I. Gen. Laws § 23-27.3-120.1 — New buildings, quoted and re-checked
  37. State Highway Right-of-Way Regulations, quoted and re-checked
  38. Rules and Regulations Governing the Administration and Enforcement of the Freshwater Wetlands Act, quoted and re-checked
  39. Required Enclosures for Freshwater Wetlands Applications, quoted and re-checked
  40. Commercial Farming and Related Items (280-RICR-20-70-50), quoted and re-checked
  41. Rules and Regulations Governing the Administration and Enforcement of the Freshwater Wetlands Act, quoted and re-checked

Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Unlike 3 of its 4 neighbors, Washington County has no countywide zoning.

RuleWashington CountyKent CountyNewport CountyBristol CountyProvidence County
Building permitRequiredRequiredRequiredRequiredRequired
County zoningNoNoYesYesYes
Septic permitsRIDEMRI DEMRIDEMRI Dept. of Env. ManagementRI DEM Office of Water Resources

County locator

Washington County in Rhode Island

49
County map
Washington County highlighted among the Rhode Island counties · colored by Index score

How Washington County scores

Seclusion23100% ev.
Self-Sufficiency69100% ev.
Admin Boringness42100% ev.
Durability82100% ev.
Property Autonomy49100% ev.
Carry Cost21100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$695kTypical home
1.1%Property tax
$24,586Land / acre
47.4"Annual rain
3.8% of yrsSevere drought
0.1 / yr (+0.1)Mid-century 100°F days
12.3 daysMid-century dry spell
2.43" (+8.4%)Mid-century 1-day rain
1.31×Wildfire change factor
100%Forward climate coverage
$2,096Home insurance / yr
1.4% / yrInsurance growth
0.81%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
128,412People within 30 min
9,508,064People within 2 hr
155,671Radius comparison (15 mi)
394.7People / sq mi
1.7%Federal land
95.3%Land at 15% slope or less
0%Soils rated "not limited" for septic (strict USDA rating)
0 acWorkable land screen
70.5%Wooded land
59.4 tonsBiomass / forest ac
51°FAvg temp

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Cities and towns in Washington County

Inside a city, town or township here, that government usually sets zoning and may issue its own building permits; the county’s rules above cover land outside them.

Not yet researched: Town of New Shoreham · Town of Richmond

Answers from the rulebook for Washington County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Washington County rules

  • County-wide zoningAbsent

    County-administered zoning in Washington County, Rhode Island; this does not determine zoning imposed by Rhode Island cities and towns within the county geographic area.

    • Rhode Island's official state publication says cities and towns exercise local general-government functions.
    • Municipal zoning ordinances, including South Kingstown's, may apply to particular parcels.
    “Although there are five counties in Rhode Island, there is no county governmental structure in the State.”
  • Local zoningVaries (with conditions)

    Aggregate of municipal zoning within Washington County; zoning is administered through individual municipal ordinances and municipal planning departments rather than a single countywide zoning ordinance.

    • Municipal ordinances govern specific cities or towns.
    • The statewide planning study reports zoning information for all 39 Rhode Island municipalities and states that the data were collected from municipal planning departments.
    • The aggregate conclusion does not claim that Washington County itself administers each municipal ordinance.
    “Municipal ordinances are the local-level laws that govern a specific city or town. By clicking the name of a town or city below, you will be able to search its database of municipal ordinances.”
    2 more reviewed findings on this topic
    • Varies (with conditions) — Countywide aggregate describing locally administered zoning within Washington County's geographic area; Washington County itself does not administer the municipal ordinances.
      “That each city and town amend its zoning ordinance to comply with the terms of this chapter.”
    • Varies (with conditions) — Municipal zoning within Washington County, aggregated across the county; individual municipalities administer their own zoning ordinances and requirements.
      “maintaining municipal discretion in land use decision-making”

Rhode Island rules that apply here

  • Building permitRequired

    Construction, enlargement, alteration, removal, demolition, occupancy changes, and regulated equipment installation or alteration statewide; one- and two-family residential work is governed by the Rhode Island One and Two-Family Dwelling Code.

    • Ordinary repairs that do not involve a violation of the building code are exempt.
    • For one- and two-family dwellings, permits are not required for listed minor work, including one-story detached accessory structures not exceeding 64 square feet, fences not over six feet, retaining walls not over 32 inches unless supporting a surcharge, qualifying water tanks, certain sidewalks and driveways, and similar finish work.
    • All cast-in-place concrete retaining walls greater than 24 inches require a permit.
    • Permit exemptions do not authorize work violating the building code or other applicable laws or ordinances.
    • The current state code framework incorporates the 2021 code editions effective December 1, 2025.

    detached accessory structure floor area exemption: <= 64 square feet (one-story detached accessory structures under the one- and two-family dwelling code) · fence height exemption: <= 6 feet · retaining wall height exemption: <= 32 inches (cast-in-place concrete retaining walls greater than 24 inches require a permit; surcharge-supported walls are not exempt) · water tank capacity exemption: <= 5000 gallons (height-to-diameter or width ratio must not exceed 2 to 1)

    “It shall be unlawful to construct, enlarge, alter, remove, or demolish a building [...] without first filing an application with the building official in writing”
    2 more reviewed findings on this topic
    • Required — Construction, enlargement, alteration, removal, demolition, regulated equipment installation or alteration, and changes of occupancy in Washington County municipalities under the Rhode Island State Building Code.
      “without first filing an application with the building official in writing and obtaining the required permit therefor”
    • Required — Construction, enlargement, alteration, removal, or demolition of buildings and structures; changes of occupancy between code-defined use groups; and installation or alteration of equipment regulated by the Rhode Island State Building Code in Washington County and throughout Rhode Island.
      “without first filing an application with the building official in writing and obtaining the required permit therefor”
  • Owner-builder exemptionAvailable (with conditions)

    The owner/occupant performing work requiring registration on a single-family dwelling.

    • The owner/occupant must obtain a permit.
    • The work must be inspected by the local official under the code.
    • The work must be approved before use of the completed alteration.
    • The owner/occupant must perform the work requiring a license without assistance from others who are compensated.
    • The exemption is from contractor registration requirements, not from permits, inspections, or approval.
    “The owner/occupant of single family dwelling shall be exempt from the registration requirements of subsection (a), but must obtain a permit,”
    2 more reviewed findings on this topic
    • Available (with conditions) — Owner-builder work on a single-family residential structure relevant to Washington County.
      “Yes, if the contractor is properly licensed and/or registered in Rhode Island to perform the work. This exemption only applies to the construction or remodeling of a single-family residential structure occupied, or to be occupied, by the homeowner.”
    • Available (with conditions) — Owner-occupants of single-family dwelling units performing construction work on their own homes in Washington County.
      “Any owner/occupant of a single family dwelling unit does not need a registration provided that owner occupant undertakes the work without the assistance of others that are compensated.”
  • Building code adoptedAdopted (with conditions)

    Construction and related building-code requirements in Washington County under Rhode Island’s statewide building-code system.

    • Effective December 1, 2025, Rhode Island incorporated by reference the listed 2021 ICC and NFPA editions with Rhode Island amendments.
    • The referenced National Electrical Code edition is 2023 and the referenced International Energy Conservation Code edition is 2024.
    • The general building code applies to construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal, and demolition of buildings and structures.
    • Detached one- and two-family dwellings, qualifying town houses not more than three stories above grade plane with a separate means of egress, and their accessory structures comply with the Rhode Island One- and Two-Family Dwelling Code.
    • Existing buildings undergoing repair, alterations or additions and changes of occupancy comply with the Rhode Island Existing Building Code or State Rehabilitation Code.

    effective date: 2025-12-01 · IBC edition: 2021 (Rhode Island amendments apply) · IRC edition: 2021 (Rhode Island amendments apply) · NEC edition: 2023 (Rhode Island amendments apply) · IECC edition: 2024 (Rhode Island amendments apply)

    “Effective December 1, 2025, the State of Rhode Island has incorporated by reference the 2021 editions of the below listed ICC & NFPA codes along with RI amendments. (Note that the referenced edition of the National Electrical Code [NEC] is the 2023 edition and the referenced edition of the International Energy Conservation Code [IECC] is the 2024 edition.)”
    3 more reviewed findings on this topic
    • Adopted (with conditions) — Construction, alteration, movement, enlargement, replacement, repair, equipment, use, occupancy, location, maintenance, removal, and demolition governed by Rhode Island’s statewide building-code system, including Washington County.
      “Effective December 1, 2025, the State of Rhode Island has incorporated by reference the 2021 editions of the below listed ICC & NFPA codes”
    • Adopted (with conditions) — State building-code adoption applicable statewide, including Washington County; local building officials administer permitting and enforcement under the state code framework.
      “Effective December 1, 2025, the State of Rhode Island has incorporated by reference the 2021 editions [...] along with RI amendments.”
    • Adopted — Statewide construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or connected appurtenance, subject to the code's stated exceptions.
      “The Building Code Standards Committee hereby adopts and incorporates as the Rhode Island Building Code the provisions of the International Building Code (IBC), 2021 edition, as published by the International Code Council, Inc. (ICC) not including any further editions or amendments thereof and only to the extent that the provisions therein are not inconsistent with R.I. Gen. Laws Chapter 23-27.3 and any provisions reserved, deleted, or amended in this Regulation.”
  • InspectionsRequired

    Work performed under a building permit statewide.

    • The building official conducts inspections during and upon completion of permitted work.
    • Specific inspection points may require the contractor or builder to give 24 hours' notice.
    • The building official must make the inspection within 48 hours after notification, excluding weekends and holidays.
    • If the building official fails to inspect within the statutory timeframe, the contractor or builder may hire a qualified third-party inspector or the state inspector and the building official must accept the reports.
    • At least 24 hours' notice by email is required before hiring a third-party or state inspector.

    inspection notice: 24 hours · building official inspection response time: 48 hours (weekend days and holidays excluded) · third-party inspector notice: 24 hours (notice by email before hiring)

    “The building official shall make all required inspections [...] during and upon completion of the work for which the building official has issued a permit”
  • Certificate of occupancyLimited

    Existing buildings statewide when the owner requests a certificate of use and occupancy.

    • The owner must make a written request.
    • There must be no pending violations of law or orders of the building official or fire official.
    • Inspection and investigation must establish that the alleged use previously existed.
    • Private-well properties require drinking-water testing documentation; a city or town may require additional testing.
    • Noncompliant private-well results require corrective action before certificate issuance.
    • Corrective action is required within 30 days, subject to the stated appeal and extension provisions.
    • A qualified professional may support an appeal for a private-well exemption, which expires after five years and is renewable only by appeal.

    private-well corrective action period: 30 days (subject to stated appeal and extension provisions) · private-well exemption duration: 5 years (renewable by appeal only)

    “Upon written request from the owner of an existing building, the building official shall issue a certificate of use and occupancy”
    2 more reviewed findings on this topic
    • Limited — Use or occupancy of buildings or structures newly erected in Washington County and throughout Rhode Island.
      “No building or structure hereafter erected shall be used or occupied [...] until a certificate of use and occupancy shall have been issued”
    • Required — New buildings and structures erected statewide.
      “No building or structure hereafter erected shall be used or occupied [...] until a certificate of use and occupancy shall have been issued by the building official.”
  • Zoning districtsPartial

    Municipal zoning ordinances and zoning maps in Rhode Island when an ordinance and map have been published.

    • Printed copies of the zoning ordinance and map(s) of a city or town must be available to the general public and revised to include all amendments.
    • A reasonable charge may be made for copies to reflect printing and distribution costs.
    • Upon publication of a zoning ordinance and map, and amendments, the city or town clerk must send a copy to the state law library.
    • The statute does not establish from its text that every Rhode Island city or town has adopted a zoning ordinance or published zoning districts.
    “Printed copies of the zoning ordinance and map(s) of a city or town shall be available to the general public and revised to include all amendments. A reasonable charge may be made for copies to reflect printing and distribution costs. Upon publication of a zoning ordinance and map, and any amendments to them, the city or town clerk shall send a copy, without charge, to the state law library.”
    One more reviewed finding on this topic
    • Partial — Statewide publication of generalized zoning information for Rhode Island municipalities.
      “For the first time, this study has gathered zoning information for all 39 municipalities in Rhode Island and consolidated these data into a statewide composite zoning map. Like the statewide Current Land Use layer, zoning data were collected from municipal planning departments and reclassified into a general statewide zoning categorization. Data were collected from June to July 2025 and reflect the most current information available at that time.”
  • Lot coverageDistrict specific (with conditions)

    Lot-coverage standards established within municipal zoning districts under Rhode Island's statewide zoning-enabling framework.

    • The operative lot-coverage percentage or other dimensional limit is established by the applicable municipal zoning ordinance and district.
    • The cited state statute provides the framework; it does not supply a single statewide numeric lot-coverage limit.

    lot coverage: district-specific

    “Regulating within each district and designating requirements for:”
  • Building heightDistrict specific (with conditions)

    Building-height standards established within municipal zoning districts under Rhode Island's statewide zoning-enabling framework.

    • The operative height, story, or dimensional limit is established by the applicable municipal zoning ordinance and district.
    • The cited state statute provides the framework; it does not supply a single statewide numeric zoning-height limit.

    building height: district-specific

    “The height, number of stories, and size of buildings;”
  • Manufactured homesAllowed (with conditions)

    Manufactured homes used as single-family homes on lots zoned for single-family use in Rhode Island municipalities.

    • The municipality may allow the manufactured home; the statute does not require every municipality to do so.
    • The home must comply with R.I. Gen. Laws § 23-27.3-109.1.3.
    • The lot must be zoned for single-family use.
    • The home must comply with all dimensional requirements of a single-family home in the district or obtain relief under the zoning chapter.
    “Notwithstanding any other provisions of this chapter, all towns and cities may allow manufactured homes that comply with § 23-27.3-109.1.3 as a type of single-family home on any lot zoned for single-family use. Such home shall comply with all dimensional requirements of a single-family home in the district or seek relief for the same under the provisions of this chapter.”
    2 more reviewed findings on this topic
    • Limited — Manufactured homes used as buildings or dwellings subject to Rhode Island building-code requirements.
      “Manufactured homes are constructed in accordance with [...] Part 3280 Manufactured Home Construction and Safety Standards. Refer to Appendix E [...] for specific provisions regarding permitting”
    • Limited — Temporary placement and occupancy of mobile or manufactured homes on the same land when a residential building or structure has been rendered uninhabitable by casualty.
      “Any time a building or other structure used for residential purposes, or a portion of a building containing residential units, is rendered uninhabitable by virtue of a casualty such as fire or flood, the owner of the property is allowed to park, temporarily, mobile and manufactured home, or homes, as the need may be, elsewhere upon the land, for use and occupancy of the former occupants for a period of up to twelve (12) months, or until the building or structure is rehabilitated and otherwise made fit for occupancy.”
  • Accessory dwellingsAllowed (with conditions)

    One accessory dwelling unit per lot in Rhode Island residential zoning districts, subject to the statewide conditions in §§ 45-24-31, 45-24-37, and 45-24-73.

    • One ADU per lot is allowed by right only on an owner-occupied property as a reasonable accommodation for family members with disabilities; on a residential lot of at least 20,000 square feet; or within the existing footprint of the primary structure or an existing attached or detached accessory structure without expanding that footprint.
    • A municipality may establish a maximum ADU size, but must allow at least 900 square feet or 60 percent of the principal dwelling floor area, whichever is less, for a studio or one-bedroom ADU, and at least 1,200 square feet or 60 percent of the principal dwelling floor area, whichever is less, for a two-bedroom ADU, subject to applicable dimensional requirements.
    • Municipalities may not restrict tenants based on familial relationship or age except as necessary for a federal affordability subsidy; charge ADU application or permitting fees exceeding those for a new single-family dwelling; require separate water or sewer lines or expanded septic capacity unless required by an applicable state agency, building code, or necessary capacity upgrade; discriminate against protected populations; impose dimensional or development standards exceeding those for an accessory structure in the same district; require additional lot area, frontage, or width solely for an ADU; require zoning relief to address existing dimensional nonconformity for an ADU within an existing legal nonconforming footprint; require more than one off-street parking space per ADU bedroom; limit ADUs to lots with preexisting dwellings or prohibit ADUs in new dwelling or subdivision applications; prohibit up to two bedrooms for a compliant ADU; require exclusive low- or moderate-income occupancy except for inclusionary zoning or comprehensive permit applications; or revoke permitted status or require disassembly after transfer of title or occupancy.
    • A municipality must allow ADUs in applications for new primary dwelling units or subdivisions; ADUs in larger development proposals cannot count toward density limits, and a unified development review process may be used.
    • Municipalities may exempt ADUs from all or part of utility assessment or tie-in fees.
    • Conflicting private restrictions are void as against public policy, subject to the statutory exception for private governing-body covenants that allow ADUs.
    • Locally adopted limits or moratoria on residential-unit development in residentially zoned land may not restrict ADU development.
    • ADUs shall not be offered or rented for tourist or transient use or through a hosting platform.
    • A compliant ADU is a permitted use in all residential zoning districts and is permitted through an administrative building permit process only.
    • The statutory history states amendments effective June 30, 2022, and June 25, 2024.

    ADUs per lot: 1 unit · minimum qualifying residential lot area: >= 20000 sq. ft. (One by-right pathway; other statutory pathways apply.) · minimum studio or one-bedroom ADU size: 900 or 60% of principal dwelling floor area, whichever is less sq. ft. / percentage (Subject to applicable dimensional requirements.) · minimum two-bedroom ADU size: 1200 or 60% of principal dwelling floor area, whichever is less sq. ft. / percentage (Subject to applicable dimensional requirements.) · maximum off-street parking requirement: <= 1 space per ADU bedroom

    “Pursuant to § 45-24-37, one accessory dwelling unit (ADU) per lot shall be allowed by right under the following circumstances:”
    2 more reviewed findings on this topic
    • Allowed (with conditions) — One accessory dwelling unit per lot in Rhode Island municipalities, including Washington County municipalities, subject to the statutory by-right circumstances, applicable dimensional regulations, building code, state agency requirements, and municipal administrative review where by-right treatment does not apply.
      “one accessory dwelling unit (ADU) per lot shall be allowed by right under the following circumstances:”
    • Allowed (with conditions) — One accessory dwelling unit per lot in Rhode Island residential zoning districts, when one of the statutory by-right circumstances is met.
      “Pursuant to § 45-24-37, one accessory dwelling unit (ADU) per lot shall be allowed by right under the following circumstances: (1) On an owner-occupied property as a reasonable accommodation for family members with disabilities; or (2) On a lot with a total lot area of twenty thousand square feet (20,000 sq. ft.) or more for which the primary use is residential; or (3) Where the proposed ADU is located within the existing footprint of the primary structure or existing accessory attached or detached structure and does not expand the footprint of the structure.”
  • Who permits septicState (with conditions)

    Rhode Island statewide onsite wastewater treatment systems (OWTS), including septic systems for new homes.

    • The system must be designed by a DEM-licensed designer and installed by a DEM-licensed installer.
    • New systems must be designed by a Class II or Class III designer.
    • Class I designers may design only repairs to existing systems, including complete replacement of a cesspool or failing septic system.
    • New sites require a soil evaluation by a licensed Class IV Soil Evaluator.
    • The source identifies the authority as DEM, the Rhode Island Department of Environmental Management, Office of Water Resources–Onsite Program.
    “In Rhode Island, septic systems (onsite wastewater treatment systems or OWTS) must be designed by a DEM-licensed designer and installed by a DEM-licensed installer. There are four “classes” of OWTS licenses issued by DEM. New systems must be designed by a Class II or III designer; Class I designers may only design repairs to existing systems, but this can include the complete replacement of a cesspool or failing septic system. Information on design authority of Class II and III designers is available in the OWTS Rules in Rule 9, or in the Fact Sheet “OWTS Designer License Classes Described.” New sites require a soil evaluation conducted by a licensed (Class IV) Soil Evaluator.”
    One more reviewed finding on this topic
    • State — Septic and onsite wastewater treatment system permitting in Washington County, including site suitability, design review, and system installation oversight.
      “The DEM Onsite Wastewater Treatment System (OWTS) Program administers the States’ septic system permitting program to ensure the protection of public health and the natural environment while focusing on customer service.”
  • Septic permitRequired

    A new structure in Rhode Island from which wastewater will be disposed of by an OWTS, a structure newly requiring OWTS disposal, an increase in OWTS wastewater flow exceeding 25 percent of original design flow when the specified design rules would produce a larger leachfield, or addition of more than one bedroom.

    • All OWTS applications for new building construction must conform to the OWTS Rules.
    • Nonconforming applications may be approved only through the variance procedures in § 6.51.
    • Plans and specifications must be prepared by a Class II or Class III Licensed Designer.
    • The Director must first accept a soil evaluation or concur with the soil evaluation before the application is submitted.
    • A municipality may not issue a building permit for activities requiring OWTS approval unless all required written approvals by the Director have been presented and remain valid.

    wastewater-flow increase threshold: > 25 percent of original design flow (The application is required when the applicable design flows and loading rates would result in a leachfield larger than previously approved.) · bedroom-addition threshold: > 1 bedroom (Adding more than one bedroom triggers the new-building-construction application.)

    “OWTS Application for New Building Construction”
    One more reviewed finding on this topic
  • Septic inspectionRequired

    Installation of an OWTS in Rhode Island, with the licensed designer responsible for witnessing and inspecting the installation of the system the designer designed.

    • The person witnessing and inspecting may not be the Licensed Installer who installs the OWTS, except for an OWTS repair.
    • Any assisting individual must be an employee of the same business entity as the Licensed Designer and work under that designer’s direct supervision.
    • The designer must be available to resolve noncompliance, design conflicts, changed conditions, or matters requested by the Department.
    • The designer must inform the owner in writing of special conditions, operating requirements, or periodic maintenance needs.
    “witnessing and inspecting the installation”
    One more reviewed finding on this topic
    • Required — OWTS installation projects in Washington County subject to DEM permitting and construction oversight.
      “System installation: Field inspections are conducted by DEM staff during the key stages of system siting and installation.”
  • Off-grid sanitationLimited

    Use of qualifying alternative toilets, including composting toilets, as part of an approved OWTS in Rhode Island.

    • The toilet must meet or exceed NSF Standard 41-equivalent performance standards.
    • It must be installed, operated, and maintained according to manufacturer specifications, have positive ventilation, and convert contents to an inert, stable, or harmless condition.
    • The owner must maintain a vendor-certified maintenance contract at all times for at least two years.
    • The approved OWTS construction permit application, permit conditions, and initial maintenance contract must be recorded in municipal land evidence records and provided to DEM before a certificate of conformance is issued.
    • A System Inspector report is required two years after certificate issuance and every two years thereafter.
    • A separate graywater OWTS is required, designed for 60 percent of normal daily design flow; if conventional toilet wastewater is directed to it, it must be designed for 100 percent.
    • Solids may be buried onsite unless prohibited by § 6.43 and may not be applied to food crops.
    • Excess liquids must go to the graywater septic tank or separate holding tank; liquids from the separate holding tank must be removed by a DEM-permitted septage transporter.
    • The holding tank must have capacity of 250 gallons or one year's projected flow, whichever is greater, be watertight and meet septic-tank standards, and have an alarm at 80 percent capacity.
    • The alternative technology must be on the Department's approved Alternative or Experimental Technology List.
    • Removal or replacement requires an OWTS Application for New Building Construction.
    • In Salt Pond and Narrow River Critical Resource Areas, composting toilets may be approved as nitrogen-reducing technology only if residuals are properly disposed of beyond the area's boundary, all blackwater is treated by the composting toilet, and all liquid residuals go to a compliant holding tank.

    minimum maintenance-contract term: >= 2 years · graywater design flow: 60 percent of normal daily design flow (If conventional toilet wastewater is directed to the leachfield, design flow must be 100 percent.) · holding-tank capacity: >= 250 gallons (Use one year's projected flow instead if greater.) · holding-tank alarm threshold: 80 percent of capacity

    “Alternative toilets include composting toilets”
    One more reviewed finding on this topic
    • Limited — Zero-discharge sanitation arrangements, including composting or incinerating toilets with graywater holding tanks, where the official DEM critical-erosion-area repair guidance applies.
      “Zero Discharge Systems include, but are not limited to: Holding tanks for all wastewater; or Compost toilet or incinerator toilet for blackwater and a holding tank for graywater.”
  • Well permitLimited

    New private wells in Washington County.

    • Some local building and zoning officials may require permits for new wells; the applicable municipal office must be checked before work begins.
    • New wells may only be installed in areas not already served by a public water system.
    • A licensed Rhode Island well driller must be used.
    • The contractor must file a Well Completion Report with RIDOH within 10 days of installation, even if the well is not connected to anything yet.
    • When plumbing is complete and the well is connected, the water must be tested at a certified laboratory and results submitted to the local building official.

    well completion report filing deadline: 10 days after installation (Applies even if the well has not yet been connected to anything.)

    “Some local building and zoning officials may require permits for new wells. Check with the municipal offices before starting any work.”
    One more reviewed finding on this topic
  • Mandatory utility hookupConditional

    Connection of premises to a public wastewater system where the system is reasonably accessible and permission to connect can be obtained from the authority having jurisdiction.

    • An OWTS application cannot be approved for premises where a public wastewater system is reasonably accessible and permission to enter can be obtained.
    • The Director shall require connection within a specified period if the OWTS is failing, the public wastewater system is reasonably accessible, and permission to connect can be obtained.
    • The rule does not establish a universal statewide water-service connection requirement.
    “connect the structure to a public wastewater system”
  • Agricultural exemptionConditional

    Rhode Island sales-and-use-tax exemption for farm equipment and farm-structure construction materials used in commercial farming, including eligible agricultural activity in Washington County.

    • The exemption applies to farm equipment used in connection with commercial farming and agricultural production.
    • The exemption applies to farm-structure construction materials used in connection with commercial farming and agricultural production.
    • Commercial farming includes qualifying production or boarding activity; for exemptions issued or renewed after July 1, 2002, Level I requires at least $2,500 in annual gross sales and Level II requires at least $10,000 in annual gross sales.
    • Initial issuance requires proof of the requisite prior-year gross sales; renewal requires proof for each of the prior two years.
    • Certificates issued or renewed after July 1, 2002 are valid for four years after issuance and must indicate the exemption level.
    • The exemption application must be made to the tax administrator on the prescribed form.
    • The exemption is a sales-and-use-tax exemption, not a general exemption from zoning, subdivision, septic, or building-permit requirements.
    • The active rule is effective from January 4, 2022 to the current date stated on the source.

    Level I annual gross sales threshold: >= 2500 USD (For commercial-farming exemption eligibility.) · Level II annual gross sales threshold: >= 10000 USD (For commercial-farming exemption eligibility, including qualifying motor vehicles.) · certificate validity: 4 years (Certificates issued or renewed after July 1, 2002.)

    “There is an exemption from sales and use tax as provided by R.I. Gen. Laws §§ 44-18-30(32) and 44-18-30(44) for: 1.farm equipment used in connection with commercial farming and agricultural production, and; 2.farm equipment or machinery that is used for ancillary uses or is temporarily used for non-farming or a non-agricultural purpose. However, in order to maintain the exemption, ancillary use or temporary non-farming or non-agricultural use of any farm equipment and machinery must be less than 50% of the total use of the equipment or machinery, and; 3.farm structure construction materials used in connection with commercial farming and agricultural production. B. Application for this exemption shall be made to the tax administrator on a Form prescribed by the tax administrator.”
    2 more reviewed findings on this topic
    • Conditional — Normal farming and ranching activities by qualifying farmers in regulated areas under Rhode Island freshwater-wetlands rules, including applicable wetlands, floodplains, storm-flowage areas, areas subject to flooding, and specified waterbody buffers.
      “Within the areas specified in § 2.13.2 of this Part, it is permissible for farmers, as defined herein, to conduct normal farming and ranching activities”
    • Conditional — Normal farming and ranching activities conducted by a qualifying farmer in the regulated areas identified by Rhode Island freshwater-wetlands rules.
      “Within the areas specified in § 3.13.2 of this Part, it is permissible for farmers, as defined herein, to conduct normal farming and ranching activities in accordance with best farm management practices that assure the adverse effects to the chemical, biological and hydrologic characteristics of freshwater wetlands and the aquatic environment are minimized.”
  • Subdividing landRegulated (with conditions)

    Subdivision and re-subdivision of land throughout Rhode Island, administered through municipal land-development and subdivision review regulations required by state law.

    • Every municipality must adopt land-development and subdivision review regulations complying with the chapter.
    • All subdivision activity requires a new plat drawn to local-regulation specifications and reviewed and approved by the planning board or its agents.
    • The approved plat must be submitted for signature and recording before recording.
    • Local regulations and procedures are administered by municipal officials and may vary in detail.

    municipal regulations required: true · new plat required for subdivision activity: true

    “Every municipality in the state shall adopt land development and subdivision review regulations”
    3 more reviewed findings on this topic
    • Regulated (with conditions) — Subdivision of land and land-development projects in Rhode Island, including Washington County municipalities.
      “Every municipality in the state shall adopt land development and subdivision review regulations, referred to as local regulations in this chapter, which comply with all the provisions of this chapter.”
    • Regulated (with conditions) — Subdivision and land-development review in every Rhode Island municipality, including municipalities within Washington County.
      “Every municipality in the state shall adopt land development and subdivision review regulations, referred to as local regulations in this chapter, which comply with all the provisions of this chapter.”
    • Regulated (with conditions) — Land-development and subdivision projects in Washington County municipalities under Rhode Island General Laws Chapter 45-23.
      “The city or town council shall empower, by ordinance, the planning board to adopt, modify and amend regulations and rules governing land development and subdivision projects within that municipality and to control land development and subdivision projects pursuant to those regulations and rules.”
  • Driveway accessRequired

    Access by driveway to a Rhode Island State Highway.

    • A Physical Alteration Permit must be obtained before access is made.
    • Applicants must review and agree to the RIDOT Standard Specifications for Road and Bridge Construction.
    • The applicant should become familiar with applicable regulations and standards to avoid a resubmission fee.
    • The completed application must include the PAPA Submittal Checklist, all necessary copies of plans and computations, and the permit fee required for the type of access.
    • Applications should be submitted to the Maintenance Division Headquarters.
    • All applications except single-family residential applications require a construction cost estimate for specified work; a cost estimate may be required for single-family residential applications at the Department's discretion.
    “No access by driveway to a State Highway shall be made without first obtaining a Permit.”
    One more reviewed finding on this topic
    • Required — Any driveway access to a Rhode Island state highway, including applicable properties in Washington County.
      “No access by driveway to a State Highway shall be made without first obtaining a Permit.”
  • Building in a floodplainRequired

    Projects proposing fill or structures within a floodplain or floodway, or projects that may alter the rate at which floodwater is stored by a freshwater wetland, including applicable projects in Washington County.

    • The applicant must submit a completed Stormwater Construction and WQC Application Form.
    • Two copies of supporting calculations, documents, and reports are required.
    • The project must demonstrate that it meets or exceeds the review criteria in § 3.7.2.
    • If the project does not meet all standards in § 3.7.1, the applicant must document how the variance criteria in § 3.7.3 will be satisfied.
    • Projects in a floodplain may not result in a net reduction in flood storage capacity or reduce the rate at which floodwater is stored.
    • Projects within or adjacent to rivers or streams may not encroach into floodway limits with fill, structures, or other development.

    flood event used for floodplain identification: 100 year frequency storm

    “Applications for projects that propose to place fill or structures within a floodplain or floodway, or which otherwise may alter the rate at which flood water is stored by any freshwater wetland, must submit a completed Stormwater Construction and WQC Application Form and two (2) copies of supporting calculations, documents, and reports to demonstrate that the proposed project meets or exceeds the review criteria set forth in §3.7.2.”
    2 more reviewed findings on this topic
    • Required — Projects or activities in Rhode Island jurisdictional areas that may alter freshwater wetlands, buffers, floodplains, areas subject to flooding, or areas subject to storm flowage, including applicable sites in Washington County.
      “Projects or activities within a jurisdictional area that may alter freshwater wetlands, buffers, floodplains, areas subject to flooding or areas subject to storm flowage are subject to regulation and are required to obtain approval from the Director in accordance with these Rules.”
    • Required — Projects or activities within a state-defined jurisdictional area that may alter freshwater wetlands, buffers, floodplains, areas subject to flooding, or areas subject to storm flowage.
      “Projects or activities within a jurisdictional area that may alter freshwater wetlands, buffers, floodplains, areas subject to flooding or areas subject to storm flowage are subject to regulation and are required to obtain approval from the Director in accordance with these Rules. Certain limited activities are exempt in accordance with § 3.6 of this Part.”
  • Short-term rentalsLimited

    Short-term rental properties listed on third-party hosting platforms conducting business in Rhode Island.

    • Every covered short-term rental property must be registered with the Department of Business Regulation.
    • Third-party listings must include the Department-issued registration number and expiration date.
    • Each property advertised for short-term rental requires a complete application and applicable fee; separate properties require separate registrations.
    • Private-room or shared-space listings within the same owner-occupied unit require one registration per unit.
    • Applications and renewals must be submitted electronically.
    • Registrations are issued for one year; incomplete or deficient applications do not receive registration.

    registration term: 1 year

    “In accordance with R.I. Gen. Laws § 42-63.1-14, all short-term rental properties listed for rent on the website of any third-party hosting platform that conducts business in Rhode Island must be registered with the Department.”
    One more reviewed finding on this topic
    • Limited — A short-term rental offered for up to and including 30 nights and advertised on a third-party hosting platform in Washington County.
      “R.I. Gen. Laws § 42-63.1-14 requires all short-term rentals to be registered.”
  • Permit feesPublished (with conditions)

    Municipal building permit fees in Washington County and elsewhere in Rhode Island, under the statewide permit-fee formula.

    • Municipalities assess fees using the fee schedules listed in § 21.12.
    • The schedules became effective July 1, 2018, except municipalities granted an extended transition period, for which the schedule became effective July 1, 2020.
    • Each municipality has its own posted fee schedule.
    • Fee schedules may be adjusted by regulatory amendment through the process described in § 21.8.

    initial effective date: 2018-07-01 (Municipalities granted an extended transition period use 2020-07-01.)

    “The building permit fees assessed by municipalities shall be computed in accordance with the fee schedules listed in § 21.12 of this Part herein.”
    2 more reviewed findings on this topic
    • Published (with conditions) — Building permit fees assessed by municipalities in Washington County under Rhode Island's statewide permit-fee framework.
      “The building permit fees assessed by municipalities shall be computed in accordance with the fee schedules listed in § 21.12 of this Part herein.”
    • Published (with conditions) — Municipal building permit fees in Rhode Island.
      “The fee schedule for each municipality shall be posted on the commission’s website and the website shall be updated whenever a change to a fee schedule is made so that all fee schedules posted on the website are current.”
  • Permit processPartial

    State buildings and buildings located on State-owned or State-leased land in Rhode Island, including such property in Washington County.

    • The Building Code Commission issues permits for the stated state-owned or state-controlled properties.
    • Permit applications must be submitted through the designated State permit portal.
    • Required documentation may include construction drawings, site plans, system specifications, and licensed contractor information.
    • This source does not establish the complete municipal permit process for privately owned property.
    “The Building Code Commission (BCC) is responsible for issuing permits for all State buildings and buildings located on State-owned or State-leased land.”
    2 more reviewed findings on this topic
    • Published (with conditions) — State and participating municipal permit management, inspection management, and electronic plan review, including municipalities in Washington County that use the portal.
      “The Rhode Island Statewide Permitting Initiative will establish a uniform, web-based system to be used by the State, its municipalities, and taxpayers for statewide permit management, inspection management, and electronic plan review.”
    • Published (with conditions) — State buildings and buildings located on State-owned or State-leased land.
      “Permit applications must be submitted through the designated State permit portal. Required documentation may include: Construction drawings; Site plans; System specifications; Licensed contractor information”
  • Campground & park staysLimited

    RV, camper, and trailer occupancy at Rhode Island state campgrounds located in or serving Washington County, including Charlestown Breachway, East Beach, Burlingame, and George Washington State Campgrounds.

    • A campsite's maximum camper, RV, or trailer length is site-specific and shown on the Reserve America website; the unit may not exceed that specified length.
    • Only one camper, RV, or trailer is allowed per site.
    • Campsites with a maximum vehicle length of 0 feet are for tent camping only.
    • Cabin sites at Burlingame and George Washington do not allow RVs, campers, trailers, or pop-ups.
    • East Beach is restricted to fully self-contained, four-wheel-drive camping units; travel trailers and fifth wheels are prohibited; tent camping is not allowed; a Barrier Beach Permit is required.
    • A violation of East Beach self-contained-unit requirements may terminate the camping permit without refund.
    • Camping is subject to reservation, check-in, occupancy, seasonal stay, campground-specific, and emergency-closure policies.

    camper/RV/trailer units per campsite: 1 unit · maximum unit length: site-specific Reserve America limit (Units may not exceed the specified site length)

    “Only one camper, RV, or Trailer is allowed per site.”
    3 more reviewed findings on this topic
    • Limited — Temporary camping at Rhode Island state campgrounds located in or serving Washington County, including Charlestown Breachway and East Beach State Campgrounds.
      “A maximum stay of twenty-one (21) nights within any twenty-eight (28) day period”
    • Allowed (with conditions) — Temporary camping in recreational vehicle parks and campgrounds.
      “No person or organization or government entity shall establish and maintain a recreational vehicle park or campground [...] except in conformity with this code.”
    • Allowed (with conditions) — Extended-stay, seasonal, and full-time occupancy of recreational vehicles in Rhode Island recreational vehicle parks and campgrounds.
      “Extended stay: A recreational vehicle park or campground that provides extended stay, full-time, and seasonal accommodations, rather than short-term accommodations.”
  • county zoning authorityNone

    Rhode Island counties and unincorporated land statewide; the state zoning enabling statute grants zoning authority to city or town councils, not county governments.

    • Zoning authority under the cited enabling statute is exercised by city or town councils in municipalities.
    • This claim addresses county authority only and does not determine whether a municipality has adopted a zoning ordinance.
    “Although there are five counties in Rhode Island, there is no county governmental structure in the State.”
  • county building authorityNone

    Rhode Island counties’ authority to require building permits or adopt and administer building codes for residential construction in unincorporated areas.

    • Rhode Island establishes a statewide building code governing construction and permits.
    • Construction, alteration, removal, demolition, regulated equipment installation, and occupancy changes generally require an application to and permit from the building official.
    • Ordinary repairs defined in R.I. Gen. Laws § 23-27.3-102.0 that do not violate the code are exempt from the permit requirement.
    • The statutes assign administration to the state building commissioner and local authorities/communities; they do not grant building-code administration or permitting authority to counties.
    • If a municipality lacks a local building official or inspectors, the state building code commissioner and staff assume enforcement authority in that municipality.
    “The land area of the state is divided into 39 cities and towns. Rhode Island is divided into 5 counties, but this is now just an administrative device used only by the court system. There is no unincorporated land in Rhode Island.”

Inside cities and towns in Washington County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

  • InspectionsRequired

    Permitted building work in the Town of Narragansett, Washington County, Rhode Island.

    • The contractor must request the building inspection 24 hours in advance.
    • The property address, inspection type, and permit number must be provided.
    • The building permit card must be posted at the job site for all inspections.
    • Approved plans and engineering specifications must remain on site during construction or inspections will not be performed.
    • Failure to pass an inspection or failure to have the permit card and approved plans on site results in a $50 re-inspection fee.

    inspection notice: 24 hours in advance · re-inspection fee: 50 USD (Failure to pass an inspection or have the permit card and approved construction plans on site)

    “Any request for a building inspection must be made by the contractor 24 hours in advance.”
    One more reviewed finding on this topic
    • Required — Construction subject to South Kingstown’s Building Inspection and Zoning Department jurisdiction.
      “All work related to Building, Electrical, Mechanical or Plumbing permits must be inspected.”
  • Certificate of occupancyRequired

    Permitted construction work requiring a certificate of occupancy in the Town of Narragansett, including residential projects where the town requires issuance before occupancy.

    • All final inspections and certifications must be completed before the certificate of occupancy is issued.
    • The certificate is added to the E-permit.
    “In order to receive a certificate of occupancy all final inspections and certifications must be completed.”
  • Zoning districtsPublished (with conditions)

    Properties within the Town of South Kingstown, Washington County, Rhode Island.

    • The zoning district is determined by entering the property address in the town-linked AxisGIS system.
    • South Kingstown separately links conforming-lot setbacks, substandard-lot dimensional regulations, a schedule of uses, and use codes.
    • This claim is town-specific and does not establish zoning districts for every municipality in Washington County.
    “To determine your Zoning District, click on the AxisGIS link below and enter your address in the search bar.”
  • Subdividing landRegulated (with conditions)

    Subdivisions and land-development projects in South Kingstown, Washington County, Rhode Island.

    • Projects are governed by Rhode Island General Laws Chapter 45-23, the South Kingstown Zoning Ordinance, and the Town's Subdivision and Land Development Regulations.
    • The source states that interpretation assistance is available from the Planning Department.
    “All subdivision, land development project, and development plan review is governed by Rhode Island General Laws Chapter 45-23, the Town of South Kingstown Zoning Ordinance, and the Town's Subdivision and Land Development Regulations.”

Set by your town or city, not the county

In Rhode Island, zoning is adopted by each town or city, so Washington County has no county-wide answer on these. Find your town or city in the list of places on this page, or call its clerk or zoning administrator.

  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Tiny homes

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Washington County, Rhode Island

Is Washington County a good place to live off-grid or homestead?

Washington County scores 49/100 on the Bolthole Index, a solid county profile. Its strengths: mixed durability signals and strong self-sufficiency basics: 47.4″/yr rainfall plus 70.5% wooded land. Watch-outs: higher long-term carry cost and about 128,412 people within a 30-minute drive.

Do you need a building permit in Washington County, Rhode Island?

Washington County generally requires a residential building permit, and it has no county-wide zoning. Onsite septic is permitted by Rhode Island Department of Environmental Management (RIDEM), Onsite Wastewater Treatment System (OWTS) Program. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Washington County, Rhode Island?

Land in Washington County runs about $24,586 per acre, based on the latest county data.

What is the water situation in Washington County?

Washington County gets about 47.4" of rain a year, with severe drought in roughly 3.8% of years.

How remote is Washington County?

A representative private-land location has about 128,412 people within a 30-minute drive and 9,508,064 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How Washington compares in Rhode Island

Compare side-by-side →See all 5 Rhode Island counties ranked →