Bolthole Index

Clay County, Florida

Building permits, zoning and septic rules in Clay County, Florida

62Index Score / 100
#35 of 67 in Florida

Unincorporated Clay County, Florida requires a building permit from the Building Division, with zoning and site-plan review by Planning & Zoning first12. Septic permits are separate: the Florida Department of Health in Clay County handles local septic permitting and inspections while Florida DEP enforces the statewide rules345. Eligible owners may act as their own contractor, but Clay County attaches ownership, occupancy and resale conditions6.

At a glance

Building permit
Required for construction in unincorporated Clay County1
Zoning
Yes; site/zoning review required before a building permit2
Septic permit
Required; local permits and inspections go through Florida DOH in Clay County37
Owner-builder
Available to eligible deeded owners who meet Clay County's conditions6
Certificate of occupancy
Required before occupying a building covered by the county permit system8
Building inspections
County approval is required at specified stages and when work is complete9
Mobile home age limit
1976 model year or newer to install in Clay County10
RV living
Private-land residential use is unconfirmed; ask Planning & Zoning11

Who to call

Building permits

Clay County Building Division

Issues residential and commercial building permits, performs plan review and inspections under the Florida Building Code for unincorporated Clay County

(904) 269-6307

permits@claycountygov.com

435 Walburg Street, Green Cove Springs, FL 32043

Building permits

Clay County Building Division - Permit FAQ

Published permit FAQ covering Notice of Commencement thresholds, energy calculations, mobile home installation rules and owner-builder permitting for Clay County

buildingstaff@claycountygov.com

Zoning

Clay County Planning and Zoning Department

Zoning, site plan and development review for unincorporated Clay County; shares the Development Services building with the Building Division

904-278-4705

planningandzoning@claycountygov.com

435 Walburg Street, Green Cove Springs, FL 32043

Septic permits

Florida Department of Health in Clay County - Environmental Health

Onsite sewage treatment and disposal (septic) permits and inspections for Clay County, plus environmental health services such as public water systems and mobile home and recreational parks

904-278-3784

clayeh@flhealth.gov

435 Walburg St., First Floor, Green Cove Springs, FL 32043

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

Off-grid gear

Going off-grid in Clay 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 Clay County, Florida?

Yes. The Clay County Building Division issues residential and commercial building permits for unincorporated Clay County, and Planning & Zoning review comes first1. The county applies the 8th edition of the Florida Building Code and the 2020 National Electrical Code10. The Florida Building Code is deemed adopted statewide without adoption by the local government, so it governs Clay County construction whatever the county's own ordinances say12. A building permit valued over $5,000, or a mechanical permit valued over $15,000, needs a recorded Notice of Commencement before the first inspection can be scheduled1310. Heated space over 100 square feet also requires energy calculations10. The building permit does not cover electric, plumbing, mechanical, gas, septic or well work, which are permitted separately14. A building permit becomes null and void if work does not start within 180 days or stops for 180 days15. The published fee schedule lists a $100 first inspection on new construction, no charge for the first re-inspection and $125 for each later re-inspection16. For permitted work, obtain county approval before placing concrete, covering framing or sheathing, applying interior wall covering, and again when the work is complete9.

Who is the Clay County building department, and how do you reach them?

The Clay County Building Division handles contractor licensing, permitting and inspections13. Reach the division at 435 Walburg Street, Green Cove Springs, Florida 32043, at (904) 269-6307 or permits@claycountygov.com13. General permit questions can also go to buildingstaff@claycountygov.com10. The Planning & Zoning Department is at the same address and can be reached at 904-278-4705 or planningandzoning@claycountygov.com, Monday through Friday from 8 a.m. to 4:30 p.m.11. Use Planning & Zoning to confirm the parcel's allowed use and site plan first, then take the approved material to the Building Division for permit review21.

Does Clay County have zoning?

Yes. Clay County has a Planning & Zoning Department, and an approved site plan is required before the county will issue a building permit2. Parcel-specific limits such as setbacks, minimum lot size, building height and lot coverage were not confirmed, so ask Planning & Zoning for the standards tied to the parcel's zoning district11. Clay County's complete rules for accessory dwelling units and minimum home size also could not be confirmed. Florida's accessory-dwelling statute authorizes local governments to adopt an ordinance; it does not itself make an accessory dwelling unit allowable on every lot17. The statewide 70-square-foot figure sometimes associated with small homes applies to occupiable floor area in a habitable attic, not to a complete countywide minimum dwelling size18.

How do septic permits work in Clay County?

A permit is required before constructing, repairing, modifying, abandoning or operating an onsite sewage system covered by Florida's program3. Clay County remains outside the group transferred to direct Florida DEP permitting, so the Florida Department of Health in Clay County handles local septic permitting and inspections while DEP enforces the statewide laws and rules719. Reach the Environmental Health office at 435 Walburg St., First Floor, Green Cove Springs, or at 904-278-378420. A septic letter or approval is required with the county building permit where applicable21. Soil suitability is a practical cost issue: only about 2.1% of Clay County soils are rated without severe limits for a conventional drain field, so obtain the site evaluation before finalizing the house location or budget22.

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

We could not confirm whether Clay County allows long-term RV occupancy or temporary camping on a private unincorporated lot, so ask Planning & Zoning about the parcel and proposed duration before relying on an RV during construction11. Florida separately permits transient RV occupancy in regulated recreational vehicle parks and camps, but that statewide rule does not answer the private-land question23. Clay County's site-built tiny-home rules and complete minimum dwelling size also could not be confirmed; take the proposed floor plan and parcel information to Planning & Zoning and the Building Division before ordering a unit1113. Mobile and manufactured homes have clearer installation rules: Clay County accepts models from 1976 or later and requires a licensed contractor to set one10. A compliant mobile-home installation receives a certificate of occupancy after onsite inspection, while local zoning, setbacks and site-development rules still apply24.

Building a home in Clay County: the steps, in order

  1. Confirm the zoning district and obtain site-plan review from Planning & Zoning before submitting the building permit211.
  2. If the parcel needs septic, apply through the Florida Department of Health in Clay County and settle the system location before finalizing the house site722.
  3. Choose a licensed contractor or confirm owner-builder eligibility. An owner-builder must be named on the deed, appear and sign the disclosure, use no unlicensed labor, and generally may not rent or sell for one year after completion6.
  4. Submit the plans and applicable approvals to the Building Division113.
  5. Record the Notice of Commencement before the first inspection when the stated project-value threshold applies1310.
  6. Schedule inspections before placing concrete, covering framing or sheathing, applying interior wall covering, and at completion9.
  7. Obtain the certificate of occupancy before moving in; occupying a building covered by the county permit system before issuance is unlawful and carries a penalty of under $500 a day and/or 60 days in jail8.

What to check before you buy land in Clay County

Confirm the zoning district and request a preliminary site review before buying, because Clay County requires an approved site plan before a building permit211. Check the flood map early: development in Flood Zones A, AE and the Floodway requires a flood permit; new structures and substantial improvements in those areas require elevation certificates, and Floodway development also requires a No-Rise Study25. Test the septic path early: only about 2.1% of Clay County soils are rated without severe limits for a conventional drain field22. Ask Planning & Zoning about parcel-specific setbacks, minimum lot size, driveway access, RV use and any proposed accessory dwelling because those rules could not all be confirmed11. The effective property tax rate is about 0.7% of assessed value, and the median annual property-tax bill is $2,0802627.

Watch-outs

  • Clay County's site-built tiny-home rules and complete minimum dwelling size could not be confirmed; take the parcel and proposed plans to the Building Division and Planning & Zoning before ordering or designing one1311.
  • Long-term RV occupancy and temporary camping on private land in unincorporated Clay County could not be confirmed; ask Planning & Zoning before treating an RV as temporary housing11.
  • Clay County will not let you install a mobile home older than a 1976 model year, and you cannot set your own mobile home without a licensed contractor10.

Sources

  1. Clay County Building Division (2026 county census)
  2. Clay County Planning and Zoning (2026 county census)
  3. Onsite Sewage - Florida Department of Health in Clay County, quoted and re-checked
  4. Onsite Sewage - Florida Department of Health in Clay County, quoted and re-checked
  5. Onsite Sewage - Florida Department of Health in Clay County, quoted and re-checked
  6. Can I Pull a Permit as an Owner-Builder?, quoted and re-checked
  7. Onsite Sewage - Florida Department of Health in Clay County, quoted and re-checked
  8. Clay County Building Permit Search, quoted and re-checked
  9. Clay County Building Permit Search, quoted and re-checked
  10. Clay County Building Division - Permit FAQ (claycountygov.com)
  11. Clay County Planning and Zoning Department (claycountygov.com)
  12. Florida Statutes § 553.73, Florida Building Code, quoted and re-checked
  13. Clay County Building Division (claycountygov.com)
  14. Clay County Building Permit Search, quoted and re-checked
  15. Clay County Building Permit Search, quoted and re-checked
  16. Clay County BCC FY 24/25 Schedule of Fees & Services, quoted and re-checked
  17. Florida Statutes § 163.31771: Accessory dwelling units (Florida statewide rule), quoted and re-checked
  18. Florida Building Commission Building Codes (Florida statewide rule), quoted and re-checked
  19. Onsite Sewage - Florida Department of Health in Clay County, quoted and re-checked
  20. Florida Department of Health in Clay County - Environmental Health (clay.floridahealth.gov)
  21. Clay County Building Division (2026 county census)
  22. 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
  23. Florida Statutes Chapter 513: Mobile Home and Recreational Vehicle Parks (Florida statewide rule), quoted and re-checked
  24. Florida Statutes § 320.8285: Onsite inspection (Florida statewide rule), quoted and re-checked
  25. Flood Zone Helper, quoted and re-checked
  26. Effective property tax rate: Bolthole Index county data
  27. Median property tax bill: Bolthole Index county data

Written October 10, 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, Clay County requires a building permit for a home.

RuleClay CountySt. Johns CountyPutnam CountyBradford CountyUnion CountyDuval CountyAlachua County
Building permitRequiredRequiredRequiredRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsFL Dept. of Health in Clay CountyFL Dept. of Health in St. Johns CountyFL Dept. of Health in Putnam CountyFL Dept. of Health in Bradford CountyFL Dept. of Health in Union CountyFL Dept. of Health in Duval CountyFL Dept. of Health in Alachua County

County locator

Clay County in Florida

62
County map
Clay County highlighted among the Florida counties · colored by Index score

How Clay County scores

Seclusion30100% ev.
Self-Sufficiency60100% ev.
Admin Boringness44100% ev.
Durability75100% ev.
Property Autonomy91100% ev.
Carry Cost74100% 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 →

$339kTypical home
0.7%Property tax
$6,932Land / acre
52.1"Annual rain
8.8% of yrsSevere drought
5.2 / yr (+4.9)Mid-century 100°F days
14.2 daysMid-century dry spell
2.44" (+6.6%)Mid-century 1-day rain
1.13×Wildfire change factor
100%Forward climate coverage
$2,308Home insurance / yr
-2.6% / yrInsurance growth
0.28%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
70,044People within 30 min
3,913,219People within 2 hr
158,287Radius comparison (15 mi)
384.4People / sq mi
0%Federal land
100%Land at 15% slope or less
2.1%Soils rated "not limited" for septic (strict USDA rating)
7,500 acWorkable land screen
74.2%Wooded land
31.3 tonsBiomass / forest ac
69.7°FAvg temp

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Cities and towns in Clay 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.

Not yet researched: Town of Penney Farms

Answers from the rulebook for Clay County

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

Clay County rules

  • Owner-builder exemptionAvailable (with conditions)

    Owner-builder building permits in Clay County.

    • The applicant must own the property and be named on the deed.
    • The property cannot be owned by a trust, LLC, business, or through power of attorney.
    • For commercial projects, total job cost must be less than $75,000 and the property cannot be corporately owned.
    • The applicant must appear in person and sign an Owner-Builder Disclosure Statement.
    • The owner-builder agrees to live on the property unless building a new single-family dwelling on vacant land, not rent or sell it for one year after completion, and not hire an unlicensed individual.
    • Plans must comply with the current Florida Building Code.

    commercial project total job cost: < 75000 USD · post-completion rental or sale restriction: 1 year

    “Per Florida Statute 489.103(7), you may act as an Owner-Builder if you meet the following requirements:”
  • InspectionsRequired

    Work performed under a Clay County building permit.

    • A Notice of Commencement must be recorded and posted before the first inspection.
    • The permit does not include electric, plumbing, mechanical, gas, septic, or well work.
    • Contractor approvals are required before concrete, framework or sheathing, interior wall covering, and completion.
    “A NOTICE OF COMMENCEMENT MUST BE RECORDED AND POSTED ON THE JOB SITE BEFORE THE FIRST INSPECTION.”
    One more reviewed finding on this topic
    • Required — Work performed under a Clay County building permit.
      “Contractor is required to obtain County approvals BEFORE placing any concrete, covering any framework or sheathing, applying any interior wall covering AND upon completion of the work.”
  • Certificate of occupancyRequired

    Occupancy of a building covered by the Clay County permit-search conditions.

    • Occupancy before issuance is unlawful.
    • The stated penalty is $500 per day and/or 60 days imprisonment, with loss of future early power privileges.

    daily penalty: 500 USD/day · imprisonment: 60 days

    “It is unlawful to occupy this building before a Certificate of Occupancy has been issued”
    One more reviewed finding on this topic
    • Required — Occupancy of buildings covered by the Clay County permit-search notice.
      “It is unlawful to occupy this building before a Certificate of Occupancy has been issued under $500/day and/or 60 days imprisonment penalty, and loss of future early power privileges.”
  • Who permits septicLocal (with conditions)

    Onsite sewage treatment and disposal systems in Clay County.

    • The Florida Department of Environmental Protection enforces Florida laws and rules about OSTDS.
    • The local county health department handles septic permitting and inspections for counties outside the 16 counties listed on the page.
    “If you live outside these 16 counties, your local county health department will still handle septic system permitting and inspections.”
    One more reviewed finding on this topic
  • Septic permitRequired

    Onsite sewage systems in Clay County subject to the OSTDS permitting program.

    • The official page establishes septic system permitting by the local county health department, but does not state every exemption or project-specific trigger.
    • Operating permits are required for aerobic treatment units, performance-based treatment systems, commercial septic systems, and industrial or manufacturing zoned or equivalent septic systems.
    “A person may not construct, repair, modify, abandon, or operate an onsite sewage treatment and disposal system without first obtaining a permit approved by the department.”
    One more reviewed finding on this topic
    • Required — Septic system permitting and inspections in Clay County, Florida, including areas outside the 16 counties transferred to Florida DEP management.
      “If you live outside these 16 counties, your local county health department will still handle septic system permitting and inspections.”
  • Building in a floodplainRequired

    Development in Clay County flood zones A, AE, and Floodway.

    • Flood Zones A and AE have a 1% annual chance of flooding.
    • Flood Zone A has no measured Base Flood Elevation; Flood Zone AE does.
    • Flood insurance is required for mortgaged structures in these zones.
    • Floodway development additionally requires a No-Rise Study.

    annual flood chance in Zones A and AE: 1 percent

    “Flood Zones A & AE - (100 year floodplain) These areas have a 1% annual chance of flooding. Flood Zone A does not have a measured Base Flood Elevation. Flood Zone AE does. Flood insurance is required for mortgaged structures in these zones, as are flood permits for development and elevation certificates for new structures or substantial improvements.”
  • Permit feesPublished

    Published Clay County fee schedule entries for inspection services.

    • The cited schedule is FY 2024/25 and is specifically a schedule of fees and services; the excerpt establishes inspection fees, not every building, planning, septic, or utility fee.

    new construction first inspection: 100 USD · new construction first re-inspection: 0 USD (No charge.) · new construction second and additional re-inspections: 125 USD

    “New Construction Inspections: First Inspection $100.00 First Re-Inspection No charge Second and All Additional Re-Inspections $125.00”
  • Permit processPartial

    Building-permit processing in Clay County.

    • The permit page states that county approvals are required before placing concrete, covering framework or sheathing, applying interior wall covering, and upon completion.
    • Additional permits may be required from water management districts, state agencies, or federal agencies.
    • The permit page states that permits become null and void if work does not commence within 180 days or is suspended or abandoned for 180 days.

    commencement or suspension period: 180 days (The source applies this to commencement and suspension or abandonment.)

    “Permits become null and void if work or construction authorized is not commenced within 180 days or if construction or work is suspended or abandoned for a period of 180 days at any time after work is commenced.”
  • Building permitRequired

    The Clay County Building Division issues all residential and commercial building permits for unincorporated Clay County under the Florida Building Code; a pre-permit Planning & Zoning review is required first.

    Clay County Building Division ↗Scouted from the county site, not yet independently re-checked

  • County-wide zoningPresent

    The county has a Planning & Zoning Department; a site/zoning review and approved site plan are required before building permits, and land use is governed by county zoning.

    Clay County Planning and Zoning ↗Scouted from the county site, not yet independently re-checked

Florida rules that apply here

  • Building code adoptedAdopted

    The Florida Building Code, 8th Edition (2023), as amended and updated by the Florida Building Commission, as the building code for the State of Florida.

    • The current rule incorporates updates approved through December 9, 2025.
    • Local authorities having jurisdiction may adopt local amendments as permitted by Florida law; those amendments do not replace the statewide base code.
    • The Florida Building Commission website identifies December 31, 2023 as the effective date of the 8th Edition (2023).

    code edition: 8th Edition (2023) (as updated by the Florida Building Commission) · latest listed rule effective date: 2026-03-18 · base code effective date: 2023-12-31

    “The Florida Building Code, 8th Edition (2023), as updated by the Florida Building Commission on June 20, 2023, April 16, 2024, August 13, 2024, December 10, 2024, December 20, 2024, April 15, 2025, and December 9, 2025, and incorporated herein by reference is hereby adopted as the building code for the State of Florida.”
    3 more reviewed findings on this topic
    • Adopted (with conditions) — Florida Building Code requirements applicable in Clay County.
      “The initial adoption of, and any subsequent update or amendment to, the Florida Building Code by the commission is deemed adopted for use statewide without adoptions by local government.”
    • Adopted — The Florida Building Code for public and private buildings, including residential construction, throughout Florida.
      “The initial adoption of, and any subsequent update or amendment to, the Florida Building Code by the commission is deemed adopted for use statewide without adoptions by local government.”
    • Adopted — The Florida Building Code for public and private buildings and structures, including residential construction, throughout Florida.
      “is deemed adopted for use statewide without adoptions by local government.”
  • Minimum dwelling sizeSpecified

    Habitable attics in residential dwellings governed by the Florida Building Code, Residential, 8th Edition (2023).

    • The cited provision concerns habitable attics and requires compliance with the applicable ceiling-height requirement in Section R305.
    • The occupiable space must be enclosed by the roof assembly above, knee walls if applicable, on the sides, and the floor-ceiling assembly below.

    minimum occupiable floor area: >= 70 square feet

    “The occupiable floor area is not less than 70 square feet, in accordance with Section R304.”
  • Camping on your landLimited

    Temporary camping conducted as a recreational camp regulated under Florida Statutes Chapter 513.

    • The operator must obtain a Florida Department of Health permit before establishing or maintaining the recreational camp.
    • The camp must satisfy statutory and Department of Health requirements and inspection standards.
    • This claim does not resolve camping on private land outside a regulated recreational camp.

    permit renewal: annually · permit fee per space: 3.50-6.50 USD (Until rules setting fees are adopted, the fee is $3.50 per space.) · total permit fee: 50-600 USD (A recreational camp fee is based on an equivalency rate for which two camp occupants equal one space.)

    “recreational camp in this state without first obtaining a permit from the department.”
  • Manufactured homesAllowed (with conditions)

    An off-site-constructed residential dwelling, including a manufactured home constructed in whole or in part off site and treated as real property, in a zoning district where single-family detached dwellings are allowed.

    • The dwelling must be permitted as of right in a district where single-family detached dwellings are allowed.
    • Local governments may apply generally applicable architectural, aesthetic, design, setback, height, or bulk standards only when those standards are applied uniformly to all single-family dwellings in the same district.
    • Compatibility or design standards must be reasonable, may not exclude off-site-constructed residential dwellings, and must apply equally to single-family site-built dwellings.
    • The statute does not authorize occupancy without compliance with applicable building, permitting, installation, health, utility, or other generally applicable requirements.
    “An off-site constructed residential dwelling must be permitted as of right in any zoning district where single-family detached dwellings are allowed.”
    One more reviewed finding on this topic
    • Limited — Occupancy of a manufactured/mobile home installed in Florida.
      “each mobile home shall be issued a certificate of occupancy if the mobile home complies with department rules regarding the installation of mobile homes.”
  • Accessory dwellingsLimited

    Accessory dwelling units in Florida areas zoned for single-family residential use, where the applicable county or municipality adopts an ordinance allowing them.

    • Florida law authorizes but does not itself require every county or municipality to allow accessory dwelling units under this section.
    • The unit must be an ancillary or secondary living unit with a separate kitchen, bathroom, and sleeping area, within the same structure or on the same lot as the primary dwelling.
    • A building permit application must include an affidavit that the unit will be rented at an affordable rate to an extremely-low-income, very-low-income, low-income, or moderate-income person or persons.

    affordable rent and utilities: <= not more than 30 percent of applicable median adjusted gross annual income

    “A local government may adopt an ordinance to allow accessory dwelling units in any area zoned for single-family residential use.”
  • Septic inspectionRequired

    OSTDS construction and final-installation approval statewide.

    • Department or authorized private-provider inspection is used for construction approval.
    • Private-provider inspection is optional for owners or contractors with owner authorization; the department retains final review and approval.
    • Private-provider inspection results must be submitted within 7 calendar days, with required photographs and a $35 inspection-review fee for each report resulting in construction approval.

    private-provider result submission deadline: 7 calendar days · inspection review fee: 35 USD per inspection report resulting in construction approval

    “As of July 1, 2022, owners or contractors with owner authorization have the option to hire a private provider to perform inspections of onsite sewage treatment and disposal systems (OSTDS).”
  • Well permitLimited

    Construction, repair, or abandonment of drinking-water wells in Florida.

    • The five water management districts typically oversee drinking-water well construction, repair, and abandonment.
    • Some water management districts delegate well permitting to county health departments or other local agencies.
    • The Florida Department of Environmental Protection establishes statewide water-well construction requirements through section 373.309 and Chapter 62-532, F.A.C.
    • County health departments delegated to perform well permitting include Baker, Brevard, Broward, Clay, Miami-Dade, Flagler, Glades, Hendry, Highlands, Indian River, Lake, Marion, Martin, Nassau, Okeechobee, Orange, Osceola, Palm Beach, Putnam, St. Lucie, Sarasota, and Volusia.
    • Well-contractor licensure is distinct from any construction permit requirement; licensed water-well contractors are required for persons engaging in the business of constructing, repairing, or abandoning wells.
    “The construction, repair, or abandonment of drinking water wells is typically overseen by the five water management districts. Some of these districts have delegated authority to county health departments or other local agencies.”
    2 more reviewed findings on this topic
    • Required — Construction, repair, or abandonment of water wells in Florida.
      “Additionally, a permit must be obtained from the appropriate WMD or its delegated permitting authority prior to the construction, repair or abandonment of any water well.”
    • Required — Construction, repair, or abandonment of any water well statewide.
      “Additionally, a permit must be obtained from the appropriate WMD or its delegated permitting authority prior to the construction, repair or abandonment of any water well.”
  • Mandatory utility hookupConditional

    Existing onsite sewage treatment and disposal systems when an available publicly owned or investor-owned sewerage system exists.

    • A properly functioning OSTDS, excluding an approved onsite graywater system, must connect within 365 days after written notification that the sewerage system is available.
    • The sewerage system must provide at least one year’s advance notice of anticipated availability and notify the owner that connection will be required within one year of actual availability.
    • An OSTDS needing repair or modification to function sanitarily or comply with applicable law must connect within 90 days after written notification from the department.
    • In hardship cases, the department may approve one extension of not more than 90 days.
    • A sewerage system may waive mandatory connection with department approval when connection is not required in the public interest due to public-health considerations.
    • A local government or water-and-sewer district may grant a variance for a properly functioning, department-permitted performance-based OSTDS, but is not required to do so in the listed protected areas.

    connection deadline for properly functioning system: 365 days (After written notification of availability.) · connection deadline for system needing repair or modification: 90 days (One hardship extension of not more than 90 days may be approved.) · advance notice of anticipated availability: >= 1 year · maximum installment period for prepaid connection charges: <= 2 years · maximum hardship installment period for investor-owned sewer connection fee: <= 5 years (Requires local governing body determination of financial hardship.)

    “The owner of a properly functioning onsite sewage treatment and disposal system, excluding an approved onsite graywater system, must connect the system or the building’s plumbing to an available publicly owned or investor-owned sewerage system within 365 days after written notification by the owner of the publicly owned or investor-owned sewerage system that the system is available for connection.”
    2 more reviewed findings on this topic
    • Conditional — Existing properly functioning OSTDS when a publicly owned or investor-owned sewerage system becomes available, and systems needing repair or modification.
      “The owner of a properly functioning onsite sewage treatment and disposal system, excluding an approved onsite graywater system, must connect the system or the building’s plumbing to an available publicly owned or investor-owned sewerage system within 365 days after written notification by the owner of the publicly owned or investor-owned sewerage system that the system is available for connection.”
    • Conditional — Existing properly functioning OSTDS when an available publicly owned or investor-owned sewerage system becomes available.
      “The owner of a properly functioning onsite sewage treatment and disposal system, excluding an approved onsite graywater system, must connect the system or the building’s plumbing to an available publicly owned or investor-owned sewerage system within 365 days after written notification by the owner of the publicly owned or investor-owned sewerage system that the system is available for connection.”
  • Agricultural exemptionConditional

    Nonresidential farm buildings, farm fences, and farm signs located on lands used for bona fide agricultural purposes in Florida.

    • The land must be used for bona fide agricultural purposes.
    • The exemption does not apply to lands used for urban agriculture.
    • The exemption is from the Florida Building Code and county or municipal code or fee.
    • Floodplain-management code provisions remain applicable, including local, state, or federal provisions.
    • A farm sign on a public road remains subject to the standards listed in Florida Statutes § 479.11(4), (5)(a), and (6)-(8).
    • A nonresidential farm building is not intended to be used as a residential dwelling.
    • The statutory definition includes temporary or permanent buildings or support structures used primarily for agricultural purposes and located on land integral to a farm operation or classified as agricultural land under § 193.461; examples include a barn, greenhouse, shade house, farm office, storage building, or poultry house.
    “any nonresidential farm building [...] is exempt from the Florida Building Code and any county or municipal code or fee”
    2 more reviewed findings on this topic
    • Available (with conditions) — Nonresidential farm buildings, farm fences, and farm signs located on lands used for bona fide agricultural purposes statewide in Florida.
      “any nonresidential farm building, farm fence, or farm sign [...] is exempt from the Florida Building Code and any county or municipal code or fee”
    • Available (with conditions) — Nonresidential farm buildings, farm fences, and farm signs located on lands used for bona fide agricultural purposes in Florida.
      “any nonresidential farm building, farm fence, or farm sign [...] is exempt [...] except for code provisions implementing local, state, or federal floodplain management regulations.”
  • Subdividing landRegulated (with conditions)

    Subdivision and platting of land statewide in Florida, subject to the state minimum requirements and additional local regulation.

    • Florida Statutes Chapter 177 establishes minimum platting requirements.
    • Local ordinances, laws, or regulations may impose additional provisions or regulations.
    • A plat offered for recording must be prepared, signed, and sealed by a professional surveyor and mapper.
    • Before approval, the plat must be reviewed for conformity by a professional surveyor and mapper employed by or under contract to the local governing body, with costs borne by the entity offering the plat for recordation.
    • A subdivision plat filed for record must contain the required dedication and obtain governing-body approval.
    “This part establishes minimum requirements and does not exclude additional provisions or regulations by local ordinance, laws, or regulations.”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Subdivision of land in Florida through county and municipal land-development regulations and the statutory platting process.
      “Local land development regulations shall contain [...] and shall at a minimum:(a) Regulate the subdivision of land.”
  • Short-term rentalsLimited

    Vacation rentals in Florida.

    • A local law, ordinance, or regulation may not prohibit vacation rentals or regulate their duration or frequency.
    • The preemption does not apply to local laws, ordinances, or regulations adopted on or before June 1, 2011.
    • The preemption does not apply to a local law, ordinance, or regulation exclusively relating to property valuation as a criterion for vacation rental when approval by the state land planning agency is required under an area of critical state concern designation.
    • Local governments retain authority to inspect public lodging establishments for Florida Building Code and Florida Fire Prevention Code compliance.

    grandfather date: June 1, 2011 (local law, ordinance, or regulation adopted on or before this date)

    “A local law, ordinance, or regulation may not prohibit vacation rentals or regulate the duration or frequency of rental of vacation rentals. This paragraph does not apply to any local law, ordinance, or regulation adopted on or before June 1, 2011.”
  • Campground & park staysAllowed (with conditions)

    Occupancy of recreational vehicles as transient accommodations in Florida recreational vehicle parks and recreational camps regulated by Chapter 513.

    • The park or camp must obtain a permit from the Florida Department of Health before establishment or operation.
    • The permit must be renewed annually.
    • This claim does not establish statewide private-land zoning permission outside regulated parks or camps.

    park/camp permit renewal: annually

    “a recreational vehicle park that rents to transient guests”
  • county zoning authorityGeneral

    Florida counties' authority to establish, coordinate, and enforce zoning, including zoning of unincorporated county areas, subject to general and special law.

    • The county power is subject to general or special law.
    • The zoning and business regulations may not include the prohibitions in Florida Statutes § 377.8161.
    • This statewide authority grant does not identify a population threshold, named-county limitation, lake, military-base, reservoir, or similar geographic limitation.
    “Establish, coordinate, and enforce zoning and such business regulations as are necessary for the protection of the public”
    One more reviewed finding on this topic
    • General — Florida counties adopting and enforcing zoning regulations for county territory, including unincorporated areas.
      “Establish, coordinate, and enforce zoning and such business regulations as are necessary for the protection of the public, to the extent such zoning and business regulations do not include the prohibitions in s. 377.8161.”
  • county building authorityGeneral

    Florida counties requiring building permits and enforcing the Florida Building Code for residential and other construction within county territory outside incorporated municipalities.

    • The board of county commissioners may enforce the Florida Building Code and Florida Fire Prevention Code and may adopt local technical amendments at its discretion.
    • The authority described in § 125.56(1) applies within county territory outside the corporate limits of any municipality.
    • After adoption of the applicable code or amendment, construction, erection, alteration, repair, securing, or demolition requires a permit from the appropriate county authority, subject to reasonable fees.
    • An adopted amendment remains in force throughout the county's unincorporated area until otherwise notified by the Florida Building Commission or State Fire Marshal.
    • A county may provide a schedule of reasonable inspection fees and employ building-code inspectors and other necessary personnel.
    “The board of county commissioners of each of the several counties of the state may enforce the Florida Building Code and the Florida Fire Prevention Code as provided in ss. 553.80, 633.206, and 633.208 and, at its discretion, adopt local technical amendments to the Florida Building Code as provided in s. 553.73(4) and local technical amendments to the Florida Fire Prevention Code as provided in s. 633.202 to provide for the safe construction, erection, alteration, repair, securing, and demolition of any building within its territory outside the corporate limits of any municipality.”

Still unanswered

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

  • Local zoning — Aggregate local zoning across Clay County municipalities and unincorporated areas.
  • Zoning districts — Publication of Clay County zoning districts and use regulations.
  • Minimum lot size — Minimum lot sizes in Clay County.
  • Setbacks — Setbacks in Clay County.
  • Lot coverage — Lot-coverage requirements in Clay County.
5 more unanswered
  • Building height
  • Living in an RV
  • Tiny homes
  • Off-grid sanitation
  • Driveway access

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 Clay County, Florida

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

Clay County scores 62/100 on the Bolthole Index, a solid county profile. Its strengths: a stronger property-autonomy legal backdrop and mixed durability signals. Watch-outs: about 70,044 people within a 30-minute drive.

Do you need a building permit in Clay County, Florida?

Clay County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Florida Department of Health in Clay County (Environmental Health). 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 Clay County, Florida?

Land in Clay County runs about $6,932 per acre, based on the latest county data.

What is the water situation in Clay County?

Clay County gets about 52.1" of rain a year, with severe drought in roughly 8.8% of years.

How remote is Clay County?

A representative private-land location has about 70,044 people within a 30-minute drive and 3,913,219 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 Clay compares in Florida

Compare side-by-side →See all 67 Florida counties ranked →