Bolthole Index

Delaware County, Iowa

Building permits, zoning and land rules in Delaware County, Iowa

55Index Score / 100
#44 of 99 in Iowa

Unincorporated Delaware County, Iowa requires a county zoning permit before covered construction or a change of use, but the county does not perform building-code inspections12. County zoning applies outside incorporated municipalities, and county Water and Sanitation requires permits for private septic systems and wells345.

At a glance

Building permit
A zoning permit is required for covered work; no county building-code inspection12
Zoning
County zoning applies in unincorporated Delaware County36
Septic
County Water and Sanitation requires permits and conducts inspections47
RV living
Long-term occupancy and temporary camping rules are unconfirmed; ask County Zoning8
Tiny homes
No specific tiny-home occupancy rule confirmed; county zoning still applies9
Owner-builder
Work on your own property is exempt from contractor registration, not from permits or code compliance10
Private wells
County Water and Sanitation requires well permits and handles water testing511

Who to call

Zoning

Delaware County Zoning Department

Zoning permits, land use, setbacks and zoning questions for unincorporated Delaware County

(563) 927-5925

alinderwell@co.delaware.ia.us

Delaware County Courthouse, 301 E Main Street, Manchester, IA 52057

Septic permits

Delaware County Water and Sanitation Department

Private septic permits and inspections, private-well permits, water testing and well-plugging assistance

(563) 927-5925

alinderwell@co.delaware.ia.us

Delaware County Courthouse 301 E Main StreetManchester, Iowa 52057

Roads & driveways

Delaware County Engineer / Secondary Roads

County-road entrance review and approval, right-of-way permits and floodplain questions

(563) 927-3505

County Engineer 2139 Highway 38 Manchester, IA 52057

Contact details are copied from each office’s official page and were checked against it on October 3, 2026.

Off-grid gear

Going off-grid in Delaware 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 Delaware County, Iowa?

Delaware County requires a zoning permit before a building or structure is erected, reconstructed or structurally altered to increase its dimensions, height, floor area or dwelling count, and before a change of use1. Routine roof, window, siding, door and repair work does not need that permit when it does not enlarge the structure or change its use1. Delaware County does not conduct building-code inspections; its permit and inspection work concerns zoning, land use and setbacks2. After covered work or a change of use, the Zoning Administrator inspects for a certificate of compliance, which must be issued before the land or building is occupied or used12. Iowa's state building code separately applies in limited circumstances, including state projects, certain state-funded buildings, factory-built structures and jurisdictions that adopt it13.

Who handles permits in Delaware County?

Delaware County does not operate a building department that performs building-code inspections; the Delaware County Zoning Department is the first stop for an unincorporated construction project214. Call (563) 927-5925, email alinderwell@co.delaware.ia.us or submit the application to the Delaware County Courthouse, 301 E Main Street, Manchester, IA 5205714. Work may not begin before the zoning permit is issued14. The zoning fee is $150 for a primary structure or use and $75 for an accessory structure, addition, change or new use, or temporary use; farm exemptions have no fee15. Water and Sanitation handles required septic and well permits at the same courthouse contact4511. Secondary Roads reviews county-road entrances and right-of-way work; call (563) 927-3505 for access or floodplain questions1617.

Does Delaware County have zoning?

Yes. Delaware County zoning applies outside incorporated municipalities, and the official zoning map is the authority for a parcel's current district318. In R-1, a dwelling lot is normally at least 12,000 square feet and 80 feet wide; without public or community sewer, it must be at least 1 acre per unit excluding road right-of-way and 125 feet wide19. R-1 dwellings generally have a 35-foot front setback, 30-foot rear setback and 10-foot side setback, with 30 feet on the street side of a corner lot20. A manufactured home is allowed in R-1 on a permanent foundation, subject to the other applicable district, septic and health requirements21. Qualifying agricultural property receives different treatment: the county considers A-1 property over 5 acres exempt, while smaller properties may be considered exempt after a site plan is submitted22. Ask County Zoning to confirm the district and any farm exemption before designing the site14.

How do septic permits work in Delaware County?

The Delaware County Water and Sanitation Department requires permits for private septic systems, performs inspections and enforces Iowa's private-sewage standards47. Contact the department before fixing a house location because only 2.4% of county soils avoid severe limitations for a conventional septic drain field2311. That countywide rating does not decide an individual parcel, but it makes parcel-specific evaluation and system design important before purchase23. A private sewage system serving an occupied or used building generally must be inspected before ownership transfers, subject to listed exceptions and provisions for temporary weather or physical barriers24. A qualifying transfer inspection remains valid for 2 years24. We could not confirm whether an off-grid sanitation alternative can be approved; ask Water and Sanitation about the proposed system11.

Can you live in an RV or tiny home in Delaware County?

We could not confirm a Delaware County rule that specifically authorizes long-term RV living, temporary camping on private land or tiny-home occupancy. Ask County Zoning about the proposed use, mapped district, setbacks and whether a zoning permit or special approval is required before buying the parcel1418. We also could not confirm a general minimum dwelling floor area. A manufactured home is expressly allowed in the R-1 district when placed on a permanent foundation, subject to other applicable district, septic and health requirements21. Iowa also protects manufactured homes from exclusion solely because they are manufactured, but allows the same permanent-foundation, setback and minimum-square-footage standards applied to a site-built single-family home on the same lot25. That manufactured-home rule does not itself authorize an RV or tiny home as a residence25.

How do you build a home in Delaware County?

  1. Confirm that the parcel is outside an incorporated municipality and obtain its district from the official county zoning map36.
  2. Verify the allowed use, lot dimensions and district setbacks before fixing the house location1920.
  3. Ask Water and Sanitation to evaluate the site and issue the required septic and private-well permits4511.
  4. Ask Secondary Roads about a county-road entrance and floodplain constraints where relevant1617.
  5. Submit the zoning application, site plan and applicable fee, then wait for the issued permit before starting covered work11514.
  6. After construction, alteration or a change of use, obtain the Zoning Administrator's certificate of compliance before occupying or using the property12.

What should you check before buying land in Delaware County?

Confirm jurisdiction, the official zoning-map district, permitted use, lot size and setbacks with County Zoning before closing31814. Order parcel-specific septic feasibility work because only 2.4% of county soils avoid severe limitations for a conventional drain field23. Verify the required private-well permit with Water and Sanitation, floodplain status with Secondary Roads, and legal county-road access before choosing the build site51116. Review the abstract for easements and restrictive covenants as the county application directs14. Delaware County's effective property-tax rate is about 1.3%, and the median annual property-tax bill is about $2,2662627. The county has about 17,600 residents at 30.5 people per square mile, and the nearest city of 100,000 or more is about 38 miles from the county center282930.

Watch-outs

  • A Delaware County zoning permit is required for covered construction even though the county does not perform building-code inspections12.
  • Only 2.4% of Delaware County soils avoid severe limitations for a conventional septic drain field, so verify septic feasibility before fixing a house site23.
  • A zoning certificate of compliance must be issued before covered land or buildings may be occupied or used after erection, structural alteration or a change of use12.
  • We could not confirm rules for RV occupancy, temporary camping, tiny-home occupancy or a general minimum dwelling size; ask County Zoning about the parcel and proposed use14.

Sources

  1. Delaware County Zoning Ordinance, quoted and re-checked
  2. delawarecountyzoning.iowa.gov, quoted and re-checked
  3. Delaware County Zoning Department, quoted and re-checked
  4. Delaware County, Iowa - Water and Sanitation, quoted and re-checked
  5. Delaware County, Iowa - Water and Sanitation, quoted and re-checked
  6. Delaware County Zoning Ordinance, quoted and re-checked
  7. Water and Sanitation, quoted and re-checked
  8. Delaware County Zoning Department (2026 county census)
  9. Delaware County Zoning Department, quoted and re-checked
  10. Iowa Code 2026, Chapter 91C — Construction Contractors (Iowa statewide rule), quoted and re-checked
  11. Delaware County Water and Sanitation Department (delawarecounty.iowa.gov)
  12. Delaware County Zoning Ordinance, quoted and re-checked
  13. Building Code Plan Review (Iowa statewide rule), quoted and re-checked
  14. Delaware County Zoning Department (delawarecountyzoning.iowa.gov)
  15. Zoning Application Fees, quoted and re-checked
  16. Delaware County Engineer / Secondary Roads (delawarecounty.iowa.gov)
  17. Delaware County Zoning Ordinance, quoted and re-checked
  18. Delaware County Zoning Ordinance, quoted and re-checked
  19. delawarecountyzoning.iowa.gov, quoted and re-checked
  20. delawarecountyzoning.iowa.gov, quoted and re-checked
  21. Delaware County Zoning Ordinance, quoted and re-checked
  22. delawarecountyzoning.iowa.gov, quoted and re-checked
  23. 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
  24. Delaware County, Iowa - Water and Sanitation, quoted and re-checked
  25. Iowa Code §335.30, Manufactured and modular homes (Iowa statewide rule), quoted and re-checked
  26. Effective property tax rate: Bolthole Index county data
  27. Median property tax bill: Bolthole Index county data
  28. County population: Bolthole Index county data
  29. Population density: Bolthole Index county data
  30. Straight-line distance from the county center to the nearest city of 100,000+ people: Bolthole Index county data

Written October 3, 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

Like all 6 of its neighbors, Delaware County has countywide zoning.

RuleDelaware CountyClayton CountyJones CountyDubuque CountyBuchanan CountyLinn CountyFayette County
Building permitLimitedRequiredLimitedLimitedLimitedRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsCounty Water & Sanitation Dept.County Board of HealthCounty Env. Health OfficeCounty Health Dept.County Env. Health ServicesCounty Public Health Dept.County Env. Health

County locator

Delaware County in Iowa

55
County map
Delaware County highlighted among the Iowa counties · colored by Index score

How Delaware County scores

Seclusion56100% ev.
Self-Sufficiency30100% ev.
Admin Boringness61100% ev.
Durability55100% ev.
Property Autonomy51100% ev.
Carry Cost58100% 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 →

$248kTypical home
1.3%Property tax
$10,164Land / acre
38.6"Annual rain
7.9% of yrsSevere drought
2.5 / yr (+2.5)Mid-century 100°F days
14.9 daysMid-century dry spell
1.84" (+7.2%)Mid-century 1-day rain
1.77×Wildfire change factor
100%Forward climate coverage
$1,479Home insurance / yr
1.4% / yrInsurance growth
0.96%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
20,448People within 30 min
1,247,799People within 2 hr
23,306Radius comparison (15 mi)
30.5People / sq mi
0.4%Federal land
90.2%Land at 15% slope or less
2.4%Soils rated "not limited" for septic (strict USDA rating)
8,914 acWorkable land screen
8.9%Wooded land
58 tonsBiomass / forest ac
47°FAvg temp

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Cities and towns in Delaware County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Colesburg · Delaware · Delhi · Dundee · Earlville · Edgewood · Greeley · Hopkinton · Manchester · Masonville · Ryan

Answers from the rulebook for Delaware County

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

Delaware County rules

  • Building permitLimited

    Buildings and structures subject to Delaware County zoning jurisdiction.

    • A zoning permit is required before covered construction or a change of use.
    • Routine maintenance such as roofs, windows, siding, doors, and repairs that do not enlarge the structure or change its use does not require a zoning permit.
    • The county FAQ states that the county handles zoning permits, not building-code permits.
    “A zoning permit shall be obtained from the Zoning Administrator before any building or structure shall be erected, reconstructed or structurally altered to increase the exterior dimensions, height, floor area, number of dwellings units or to accommodate a change in use of the building and/or premises or part thereof. Any maintenance item such as a new roof, windows, siding, doors, and other repair items which do not enlarge the structure or change the use, shall not require a zoning permit.”
    One more reviewed finding on this topic
    • Limited — Construction, reconstruction, structural alteration, increased dimensions, height, floor area, dwelling count, or change of use in areas governed by the county zoning ordinance.
      “A zoning permit shall be obtained from the Zoning Administrator before any building or structure shall be erected, reconstructed or structurally altered to increase the exterior dimensions, height, floor area, number of dwellings units or to accommodate a change in use of the building and/or premises or part thereof.”
  • InspectionsNot required

    County building-code inspections.

    “No, there are no building code inspections in Delaware County. We only handle zoning permits, which are concerned with setbacks and land use.”
    One more reviewed finding on this topic
    • Limited — Building-code and zoning-related inspection activity in unincorporated Delaware County.
      “No, there are no building code inspections in Delaware County. We only handle zoning permits, which are concerned with setbacks and land use.”
  • Certificate of occupancyRequired

    Occupation or use of land and buildings subject to the county zoning ordinance.

    • No land or building may be occupied or used until the Zoning Administrator issues a certificate of compliance stating that the building and use comply with the zoning ordinance and applicable county building and health ordinances.
    “No land shall be occupied or used, and no buildings hereafter erected or structurally altered shall be occupied or used, in whole or in part, for any purpose whatsoever, until a certificate of compliance is issued by the Zoning Administrator”
    One more reviewed finding on this topic
    • Required — Occupancy or use of land and buildings governed by the county zoning ordinance.
      “No land shall be occupied or used, and no buildings hereafter erected or structurally altered shall be occupied or used, in whole or in part, for any purpose whatsoever, until a certificate of compliance is issued by the Zoning Administrator”
  • County-wide zoningPresent

    Land use and zoning in the unincorporated portions of Delaware County.

    • The ordinance defines “County” as the unincorporated portions of Delaware County, Iowa.
    “The jurisdiction of this Ordinance shall apply to all areas of Delaware County outside the incorporated limits of municipalities.”
    One more reviewed finding on this topic
    • Present — County zoning and land-use regulation in Delaware County's unincorporated area.
      “The jurisdiction of this Ordinance shall apply to all areas of Delaware County outside the incorporated limits of municipalities.”
  • Local zoningPresent

    County-administered zoning in unincorporated Delaware County.

    • This claim does not establish the zoning rules of incorporated municipalities.
    “The jurisdiction of this Ordinance shall apply to all areas of Delaware County outside the incorporated limits of municipalities.”
  • Zoning districtsPublished

    County zoning districts and the official zoning map.

    • The ordinance states that the official zoning map in the Zoning Administrator's office is the final authority for current zoning status.
    • The district list includes A-1, R-1, R-2, R-3, R-4, C-1, C-2, I-1, and I-2.
    “In order to carry out the purposes of this Ordinance, the following zoning districts are established: A. A-1 Agricultural District B. R-1 Single-Family Residential District C. R-2 Multiple-Family Residential District D. R-3 Mobile Home Park District E. R-4 Lake Delhi Residential/Recreational District F. C-1 Mixed Use Commercial District G. C-2 General Commercial District H. I-1 Light Industrial District I. I-2 Heavy Industrial District”
    One more reviewed finding on this topic
    • Published — Official county zoning districts and zoning map.
      “Delaware County is hereby divided into districts as shown on the Official Zoning Map, which together with all explanatory matter thereon, is hereby adopted by reference and is declared to be part of this Ordinance.”
  • Minimum dwelling sizeSpecified

    New primary structures in the R-2 Multiple-Family Residential District.

    • The dimensional requirement applies to new primary structures in R-2.
    • Porches, garages, and accessory buildings are excluded from the measurement.
    • Other districts may have different requirements.

    minimum width: >= 24 feet (R-2 new primary structures) · minimum length: >= 24 feet (R-2 new primary structures)

    “All new primary structures constructed or placed in the R-2 District shall have a minimum width of twenty-four (24) feet and a minimum length of twenty-four (24) feet as measured at the narrowest points, excluding porches, garages, and accessory buildings, and shall be placed on a permanent foundation.”
  • Minimum lot sizeSpecified

    Residential lots in the county A-1, R-1, and R-2 zoning districts.

    • A-1 lots must be at least one acre excluding road right-of-way and generally 125 feet wide.
    • A-1 lots served by public or community sanitary sewer may be reduced to 15,000 square feet and 100 feet wide.
    • R-1 and R-2 lots not served by public or community sanitary sewer must generally be at least one acre per unit and 125 feet wide.
    • Other district-specific rules may apply.

    A-1 minimum lot area: >= 1 acre (Excluding road right-of-way; may be reduced to 15,000 square feet with public or community sanitary sewer) · A-1 minimum lot width: >= 125 feet (May be reduced to 100 feet with public or community sanitary sewer) · R-1 minimum lot area without public/community sewer: >= 1 acre per unit · R-2 minimum lot area without public/community sewer: >= 1 acre per unit

    “Where a lot is not served by a public or community sanitary sewer system, the minimum lot area shall be not less than one (1) acre per unit excluding the road right of way and the lot width not less than 125 feet.”
    2 more reviewed findings on this topic
    • Specified — Dwellings in the R-1 Single-Family Residential District.
      “Dwellings: Area: 12,000 square feet Width: 80 feet Where a lot is not served by a public or community sanitary sewer system, the minimum lot area shall be not less than one (1) acre per unit excluding the road right of way and the lot width not less than 125 feet.”
    • Specified — Lots in county zoning districts.
      “Area: one (1) acre excluding the road right of way Width: 125 feet”
  • SetbacksSpecified

    Setbacks in county zoning districts.

    • A-1 dwellings and other non-institutional uses: front 40 feet, rear 35 feet, side 25 feet.
    • R-1 dwellings and other non-institutional uses: front 35 feet, rear 30 feet, side 10 feet; corner street side 30 feet.
    • Other uses and districts have separate requirements.

    A-1 front setback: 40 feet · A-1 rear setback: 35 feet · A-1 side setback: 25 feet · R-1 front setback: 35 feet · R-1 rear setback: 30 feet · R-1 side setback: 10 feet (30 feet on street side of corner lot)

    “Dwellings and Other Non-Institutional Uses: Front: 35 feet Rear: 30 feet Side: 10 feet Street side, corner lot: 30 feet”
    2 more reviewed findings on this topic
    • Specified — Dwellings and other non-institutional uses in the R-1 Single-Family Residential District.
      “Dwellings and Other Non-Institutional Uses: Front: 35 feet Rear: 30 feet Side: 10 feet Street side, corner lot: 30 feet”
    • Specified — County zoning districts, including A-1 and R-1.
      “Dwellings and Other Non-Institutional Uses: Front: 35 feet Rear: 30 feet Side: 10 feet Street side, corner lot: 30 feet”
  • Building heightSpecified

    Buildings in county zoning districts.

    • Height limits vary by district and use.
    • A-1, R-1, and R-2 generally limit buildings to 2.5 stories or 35 feet; R-3 mobile homes are limited to 2 stories or 20 feet.
    • Certain public, religious, institutional, or school buildings may receive a height increase up to 70 feet under the ordinance.

    A-1 maximum height: <= 35 feet (2.5 stories) · R-1 maximum height: <= 35 feet (2.5 stories) · R-2 maximum height: <= 35 feet (2.5 stories) · R-3 mobile home maximum height: <= 20 feet (2 stories)

    “A public building, place of religious or public assembly, hospital, institution, or school may be increased in height over limitations imposed by district regulations up to a limit of seventy (70) feet if all required yards are increased an additional foot for each foot over the height limit otherwise required.”
  • Manufactured homesAllowed (with conditions)

    Manufactured homes in county zoning districts.

    • A-1 permits one mobile home/manufactured home per farmstead and permits a manufactured home on a permanent foundation.
    • R-3 is the Mobile Home Park District; mobile homes are generally placed only in mobile home parks except as otherwise provided by the ordinance.
    • District bulk, setback, foundation, and sanitation requirements apply.
    “Mobile homes occupied as a permanent or temporary place of residence shall be located only in an approved mobile home park or mobile home subdivision unless otherwise provided in this Ordinance, such as one (1) mobile home/manufactured home per farmstead allowed in an A-1 District.”
    One more reviewed finding on this topic
    • Limited — Manufactured homes in the R-1 Single-Family Residential District.
      “Manufactured home on a permanent foundation.”
  • Who permits septicMixed (with conditions)

    Private septic systems in Delaware County.

    • The county Water and Sanitation Department administers permitting and inspection.
    • The county states that it adopted and enforces Iowa DNR Chapter 69.
    “Water and Sanitation Department is responsible for the permitting of, and the inspection of, private septic systems in the Delaware County. Delaware County adopted and enforces Chapter 69 of the Iowa D.N.R.”
    2 more reviewed findings on this topic
    • County — Private septic systems in Delaware County.
      “Water and Sanitation Department is responsible for the permitting of, and the inspection of, private septic systems in the Delaware County.”
    • County (with conditions) — Private septic systems in Delaware County.
      “Water and Sanitation Department is responsible for the permitting of, and the inspection of, private septic systems in the Delaware County.”
  • Septic permitRequired

    Private septic systems in Delaware County, Iowa.

    • The Water and Sanitation Department permits and inspects private septic systems.
    • Delaware County adopted and enforces Iowa D.N.R. Chapter 69.
    • The page lists the service as Onsite Waste Water Permits.
    “Water and Sanitation Department is responsible for the permitting of, and the inspection of, private septic systems in the Delaware County.”
  • Septic inspectionRequired

    Private septic systems, including ownership transfers and county inspection administration.

    • Before transfer of ownership of a building served by a private sewage disposal system, inspection is required.
    • Exceptions include court-ordered transfers, specified mortgagee transfers, fiduciary transfers, transfers between joint tenants or tenants in common, certain family transfers, demolition transfers, systems installed not more than two years before transfer, partition deeds, tax-sale deeds, transfers for consideration of $500 or less, and other listed statutory transactions.
    • Weather or temporary physical conditions may permit a binding agreement for later inspection.

    inspection validity: 2 years (For ownership transfers during that period)

    “Prior to any transfer of ownership of a building where a person resides, congregates, or is employed that is served by a private sewage disposal system, the sewage disposal system serving the building shall be inspected.”
  • Well permitRequired

    Private wells in Delaware County, Iowa.

    • Water & Sanitation is responsible for private well water testing and well permits.
    • The county page lists Private Well Water Permits and Private Well Water Testing as services.
    • The page also lists well plugging assistance.
    “Water & Sanitation is responsible for private well water testing & well permits.”
  • Agricultural exemptionConditional

    Agricultural properties claiming exemption from county zoning requirements.

    • Properties over 5 acres zoned A-1 Agricultural are considered exempt according to the county FAQ.
    • Properties less than 5 acres may be considered exempt if a site plan is submitted.
    • The ordinance states that tracts under 5 acres are presumed not primarily agricultural and the claimant must demonstrate agricultural use by providing a site plan.
    • The ordinance seeks voluntary compliance for agricultural uses, specifically minimum yard requirements.

    acreage threshold: > 5 acres (tracts under 5 acres are presumed not primarily agricultural)

    “If the tract of land is less than five (5) acres, it shall be presumed that the tract is not primarily used for agricultural purposes. It shall be the responsibility of any person or group claiming that certain property is entitled to exemption on the basis of this section to demonstrate that the property is used for agricultural purposes by providing a site plan to the Zoning Administrator.”
    One more reviewed finding on this topic
    • Conditional — Farm properties seeking exemption from county zoning.
      “Properties over 5 acres and zoned A-1 Agricultural are considered exempt, and properties less than 5 acres may be considered exempt if a site plan is submitted. It is best to contact the zoning office.”
  • Building in a floodplainLimited

    Buildings and structures in county zoning districts where floodplain or floodway restrictions apply.

    • Buildings and structures shall not obstruct natural drainage courses or floodways.
    • Development must comply with the Delaware County Floodplain Management Ordinance.
    • The county FAQ identifies a Floodplain Administrator in Secondary Roads.
    “Buildings and structures shall not obstruct natural drainage courses or floodways, and shall be in accordance with the Delaware County Floodplain Management Ordinance.”
    One more reviewed finding on this topic
    • Limited — Buildings and structures in county-regulated floodplain or floodway areas.
      “Buildings and structures shall not obstruct natural drainage courses or floodways, and shall be in accordance with the Delaware County Floodplain Management Ordinance.”
  • Permit feesVariable (with conditions)

    Applications and appeals under the county zoning ordinance.

    • Fees are established by resolution of the Board of Supervisors.
    • The fee schedule is posted in the Office of the Zoning Administrator.
    • No action is taken until applicable fees, charges, and expenses are paid in full.
    • Failure to approve an application or appeal does not require a refund.
    “Any application for action taken under this Ordinance shall be submitted along with the required fee, as established by resolution of the Board of Supervisors. All required fees shall be submitted to the Zoning Administrator. The schedule of fees shall be posted in the Office of the Zoning Administrator.”
    2 more reviewed findings on this topic
    • Published (with conditions) — Applications under the Delaware County Zoning Ordinance.
      “The schedule of fees shall be posted in the Office of the Zoning Administrator.”
    • Published (with conditions) — County zoning permit and related application fees.
      “Zoning Permit: Primary Structure or Use House, business, etc. $150.00 Zoning Permit: Accessory Structure or Use Garage, deck, patio, shed, etc. $75.00”
  • Permit processPublished (with conditions)

    County zoning permit applications and changes of use.

    • Application must be made before construction or a change of use.
    • The application must be complete and accompanied by the required fee, plans, and information.
    • The zoning permit must be approved before construction or a change of use and is to be issued within ten days.
    • A permit expires if work has not commenced or been completed within one year; one extension of up to one year may be granted.

    issuance period: 10 days (after approval under §5.02) · initial permit validity: 1 year (one extension not exceeding one year may be granted)

    “Application for a zoning permit shall be made prior to beginning construction or changing use, on a fully completed application form obtained from the Zoning Administrator, accompanied by the required fee and such plans and information necessary to determine that the proposed construction and use complies with all applicable provisions of this Ordinance.”

Iowa rules that apply here

  • Owner-builder exemptionAvailable (with conditions)

    A person performing work or having work performed on the person's own property, for purposes of Iowa Code chapter 91C contractor registration.

    • The exemption is from being treated as a contractor for purposes of chapter 91C; it is not stated to waive building permits, building-code compliance, inspections, or certificates of occupancy.
    • The separate annual-earnings threshold is less than $2,000, but the own-property exemption is stated independently.
    • A contractor doing business in Iowa must register under chapter 91C unless an applicable statutory exclusion applies.
    “However, a person who earns less than two thousand dollars annually or who performs work or has work performed on the person’s own property is not a contractor for purposes of this chapter.”
  • Building code adoptedPartial

    The Iowa State Building Code, including the 2024 International Building Code adopted by reference with Iowa amendments, applies statewide to state-owned buildings and structures, qualifying state-funded construction, certain cities over 15,000 that lack a substantially equivalent local building code, and governmental subdivisions that accept the code by ordinance. Factory-built-structure provisions apply throughout Iowa.

    • In a governmental subdivision, the code generally applies only after the governing body enacts an ordinance accepting applicability and files a certified copy with the commissioner.
    • The local ordinance fixes the effective date, which must be no more than six months after adoption.
    • A governmental subdivision may withdraw after one year by ordinance, following the required public hearing and written notice; the withdrawal date must be at least 180 days after ordinance adoption, and previously issued permits are unaffected.
    • The state building code applies to state-owned buildings and structures and to newly constructed buildings and structures paid for in whole or in part with state-appropriated money but not wholly state-owned.
    • Cities with populations over 15,000 that lack a local building code substantially in accord with nationally recognized standards must enforce the state building code.
    • Factory-built-structure provisions apply throughout the state; an approved factory-built structure is deemed compliant with building regulations applicable to its manufacture and installation and is exempt from other state or local building regulations, subject to the statutory exceptions concerning professional engineering and architecture and manufactured homes.
    • The current administrative rule adopts the 2024 International Building Code by reference with amendments; detached one- and two-family dwellings, certain townhouses not more than three stories, and their accessory structures instead comply with the amended International Residential Code.

    adopted model building code: 2024 International Building Code (Adopted by reference with Iowa amendments.) · current administrative-rule effective date: 2025-09-10 (Iowa Administrative Code Chapter 481.301 source identifies ARC 9474C as effective September 10, 2025.) · local ordinance effective-date limit: <= 6 months after adoption · local withdrawal waiting period: >= 1 year after code became applicable (A governmental subdivision may withdraw only after this period has elapsed.) · withdrawal effective-date minimum: >= 180 days after ordinance adoption (Previously issued permits remain unaffected.)

    “The state building code shall be applicable: [...] In each governmental subdivision where the governing body has enacted an ordinance accepting the application of the code.”
  • Lot coverageDistrict specific (with conditions)

    Lot-coverage limits administered through Iowa county zoning districts, where adopted.

    • County zoning powers apply only outside city corporate limits.
    • The statute authorizes regulation of the percentage of a lot occupied but does not state a statewide percentage.
    • Agricultural-use and floodplain exceptions in §335.2 apply.
    “the percentage of lot that may be occupied”
  • Accessory dwellingsAllowed (with conditions)

    City regulation of accessory dwelling units statewide in Iowa, within a zoning district where a single-family residence is an allowed principal use

    • At least one accessory dwelling unit must be allowed on the same lot as a single-family residence.
    • The accessory dwelling unit must comply with applicable building regulations under chapter 103A.
    • The unit may not exceed 1,000 square feet or 50 percent of the size of the single-family residence, whichever is larger; unfinished basements are excluded from the size calculation.
    • Historic-building-code restrictions, deed restrictions, and common-interest-community rules may limit or prohibit construction or use.
    • A manufactured or mobile home used as the accessory dwelling unit must be converted to real property by placement on a permanent foundation and assessed for real-estate taxes under section 435.26.
    • A historic-preservation area may regulate the unit to the extent the city or commission determines it incongruous and records its reasons.
    • Effective July 1, 2026.

    maximum accessory dwelling unit size: 1,000 square feet or 50% of the single-family residence, whichever is larger (unfinished basements excluded from the size calculation)

    “A city shall allow a minimum of one accessory dwelling unit on the same lot as a single family residence within a zoning district where a single family residence is an allowed principal use, in accordance with the following conditions:”
    One more reviewed finding on this topic
    • Allowed (with conditions) — County regulation of accessory dwelling units statewide in Iowa, within a zoning district where a single-family residence is an allowed principal use
      “A county shall allow a minimum of one accessory dwelling unit on the same lot as a single family residence within a zoning district where a single family residence is an allowed principal use, in accordance with the following conditions:”
  • Subdividing landRegulated (with conditions)

    Subdivision of land in Iowa by repeated or simultaneous division into three or more parcels, subject to statutory exceptions and local review.

    • A subdivision plat is required when a tract is subdivided by repeated divisions or simultaneous division into three or more parcels described by metes and bounds for which no plat of survey is recorded.
    • A subdivision plat is not required when land is divided by conveyance to a governmental agency for public improvements.
    • Local cities and counties may establish and enforce ordinances regulating division and use of land within the statutory framework.

    minimum parcels triggering subdivision plat: >= 3 parcels (A plat is not required for division by conveyance to a governmental agency for public improvements.)

    “A subdivision plat shall be made when a tract of land is subdivided by repeated divisions or simultaneous division into three or more parcels”
  • county zoning authorityGeneral

    Iowa counties may adopt zoning ordinances for land and structures within the county but outside the corporate limits of any city.

    • Chapter 335 applies to any Iowa county at the option of its board of supervisors.
    • The zoning power is subject to Iowa Code section 335.2: ordinances generally do not apply to agricultural land, farm houses, farm barns, farm outbuildings, or other structures primarily adapted for agricultural purposes while so used, except that ordinances may apply to structures, buildings, dams, obstructions, deposits, or excavations in or on river or stream floodplains.
    • A county may not require an application, approval, or fee for an ordinance to be deemed inapplicable to qualifying agricultural land or structures.
    • A county may not regulate, restrict, or prohibit the location of permanent buildings or temporary structures used for consumer-fireworks sales pursuant to section 10A.519 in locations zoned commercial or industrial.
    • The board of supervisors may divide the county into zoning districts, and regulations may differ among districts.
    • Regulations and restrictions require public-hearing and notice procedures under sections 335.6 and 331.305; district boundaries must identify the affected township and section and, if possible, streets or roads.
    • Energy-conservation and solar-access objectives do not require zoning in a county that did not have zoning before July 1, 1981.
    “applicable to any county [...] at the option of the board of supervisors [...] outside of the corporate limits of any city.”
  • county building authorityGeneral

    Iowa counties may adopt, administer, and enforce county building codes and may administer and enforce the state building code for buildings, including residential construction, in county jurisdiction outside incorporated municipalities, subject to statutory limitations.

    • A county building code may not apply within the incorporated area of a city except at the city's option.
    • A county building code may not apply within a city's two-mile limit under Iowa Code §414.23 to the extent the city has adopted a building code within that two-mile limit.
    • A county building code may not apply to farm houses or other farm buildings primarily adapted for agricultural purposes while so used or under construction for that use.
    • Administration and enforcement are conducted as prescribed by local law or ordinance.
    • The state building code applies in a governmental subdivision only after the governing body adopts an ordinance accepting it and files a certified copy with the commissioner; the ordinance fixes the effective date, which must be no more than six months after adoption.
    • A local building department may prohibit commencement of construction until a permit is issued after showing compliance with applicable state building-code provisions.
    • Thermal-efficiency energy-conservation standards apply to construction containing heated or cooled enclosed space, but the commissioner must provide appropriate exceptions where applying an energy-conservation requirement would be impractical.
    “The power to adopt, administer, and enforce the state building code shall be exercised in accordance with chapter 103A. The power to adopt by ordinance, administer, and enforce a county building code, is subject to the following restrictions: a. A county building code shall not apply within the incorporated area of a city except at the option of the city, and shall not apply within a city’s two-mile limit referred to in section 414.23, to the extent that the city has adopted a building code within the two-mile limit. b. A county building code shall not apply to farm houses or other farm buildings which are primarily adapted for use for agricultural purposes, while so used or under construction for that use.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Living in an RV — Long-term or residential occupancy of recreational vehicles on private land.
  • Camping on your land — Temporary camping outside an approved campground.
  • Tiny homes — Tiny-home occupancy.
  • Off-grid sanitation — Off-grid sanitation systems.
  • Mandatory utility hookup — Water or sewer connection requirements.
2 more unanswered
  • Driveway access
  • Short-term rentals

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 Delaware County, Iowa

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

Delaware County scores 55/100 on the Bolthole Index, a solid county profile. Its strengths: low administrative friction for a quiet rural property. Watch-outs: workable self-sufficiency basics (38.6″/yr rainfall).

Do you need a building permit in Delaware County, Iowa?

Delaware County requires a building permit only in limited cases (such as floodplains or specific zones), and it enforces county zoning. Onsite septic is permitted by Delaware County Water and Sanitation Department. 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 Delaware County, Iowa?

Land in Delaware County runs about $10,164 per acre, based on the latest county data.

What is the water situation in Delaware County?

Delaware County gets about 38.6" of rain a year, with severe drought in roughly 7.9% of years.

How remote is Delaware County?

A representative private-land location has about 20,448 people within a 30-minute drive and 1,247,799 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 Delaware compares in Iowa

Compare side-by-side →See all 99 Iowa counties ranked →