Alachua County, FL Building Permits, Zoning & Septic Rules

Unincorporated Alachua County, Florida requires a building permit for nearly all construction, issued by the county Building Division¹. New development must also meet the county's Unified Land Development Code for zoning and subdivision². The Florida Department of Health in Alachua County handles septic permits and inspections, while the state Department of Environmental Protection enforces the governing laws and rules³. Owner-builders may work on a home they own and occupy, subject to a post-completion sale or lease restriction⁴.

At a glance

Building permit: Required for nearly all construction in unincorporated Alachua County; valid 180 days¹⁵
Zoning: Countywide Unified Land Development Code governs unincorporated land²
Septic permit: Florida Department of Health in Alachua County permits and inspects; DEP does not run septic here³
Owner-builder: You can build a home you own and occupy without a license, but can't sell or lease it for 1 year after completion⁴⁶
Minimum lot size (Rural Clusters): 1 acre minimum for a lot on private well and septic⁷
Building height: 35 feet maximum in single-family residential districts⁸
Accessory dwelling unit: Allowed in most rural/estate districts, up to 1,700 sq ft, $70 zoning permit fee⁹
Floodplain permit: Required for any development in the floodplain under ULDC Chapter 406¹⁰

Who to call

Building permits

Alachua County Building Division

Building permits, inspections and zoning administration for unincorporated Alachua County

352-374-5243

[email protected]

County Annex Building, 10 SW 2nd Avenue, Gainesville, FL 32601

Online permits →

Zoning

Alachua County Growth Management - Planning & Development

Comprehensive planning, zoning districts, rezonings and land development code questions for unincorporated Alachua County

352-374-5249

County Annex Building, 10 SW 2nd Avenue, Gainesville, FL 32601

Septic permits

Florida Department of Health in Alachua County - Environmental Health

Septic (OSTDS) permits, site evaluations and inspections in Alachua County

352-334-7930

224 SE 24th St., Gainesville, FL 32641

Floodplain permits

Alachua County Public Works - Development Review (Floodplain Administration)

Flood zone determinations, floodplain development permits and stormwater/access-management review for unincorporated Alachua County

352-337-6140

5620 NW 120 Lane, Gainesville, FL 32653

Contact details are copied from each office’s official page and were checked against it on September 28, 2026.

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

Yes. A permit is required whenever an owner, agent or contractor wants to construct, enlarge, alter, move or demolish a building, or install or alter an electrical, gas, mechanical or plumbing system, anywhere in unincorporated Alachua County¹. Alachua County adopted the Florida Building Code by county ordinance and currently lists the 2023 Florida Building Code, 8th Edition, effective December 31, 2023¹¹. Permitted work is subject to inspection by the county building official, and it must stay accessible and exposed until each inspection is approved¹². You cannot legally occupy a new or altered building until the building official issues a certificate of occupancy after the required systems pass inspection¹³. A temporary certificate can cover up to 90 days of safe partial occupancy, and the official may require cash surety equal to 110% of the estimated unfinished work¹³. Once issued, an Alachua County building permit is valid for 180 days, and construction must start within that window⁵. Bona fide nonresidential farm buildings, farm fences and farm signs have a state exemption from building-code and local code or fee requirements, but floodplain rules still apply¹⁴.

Who is the Alachua County building department?

The Alachua County Building Division, at the County Annex Building, 10 SW 2nd Avenue in Gainesville, issues building permits and schedules inspections for unincorporated Alachua County⁵. Call 352-374-5243, Monday through Thursday 8:00 a.m. to 4:00 p.m. or Friday 8:00 a.m. to 1:00 p.m., or email [email protected]⁵. The same Growth Management department's Planning & Development side, reachable at 352-374-5249, handles comprehensive plan questions, rezonings and zoning-district interpretation¹⁵. Bring a site plan if you are building a driveway, construction drawings for an addition, or a full construction document set for a new home; what you need depends on the project, so call ahead¹⁶.

Does Alachua County have zoning?

Yes. New development in unincorporated Alachua County must meet the standards of the county's Unified Land Development Code (ULDC), which covers zoning districts, permitted uses and development standards². The ULDC's Chapter 403 sets zoning districts, Chapter 404 lists what each district allows, and Chapter 407 sets development standards such as setbacks and building height¹⁷. On a single-family lot under 1 acre, the principal building's minimum setbacks are 10 feet front, 10 feet rear and 5 feet side; on a lot of 1 acre or more they grow to 15 feet front, 15 feet rear and 10 feet side, and the maximum building height in single-family districts is 35 feet¹⁸⁸. In a Rural Cluster, a single-family lot served by a private well and septic tank needs a minimum of 1 acre⁷. County zoning applies only outside incorporated cities: Gainesville, the county's largest city, runs its own Chapter 30 Land Development Code with its own zoning districts and permitted uses, so a parcel inside Gainesville's limits follows the city's rules, not the county's¹⁹.

How do septic permits work in Alachua County?

Septic (OSTDS) permits and inspections in Alachua County are handled by the Florida Department of Health in Alachua County³²⁰. The state Department of Environmental Protection still enforces Florida's septic laws and rules even where the county health department issues the permit²¹. You need a permit for a proposed installation, repair, modification or approval of an existing system²². Soils matter here: only about 15.1% of Alachua County's soils rate as not severely limited for a conventional drain field, meaning most mapped soils have severe conventional-drain-field limitations and deserve an early site evaluation²³. Private well and septic systems are allowed on residential lots that meet the ULDC's lot-size table, state standards and local health department approval²⁴. New development or redevelopment within the county's Urban Cluster generally must connect when centralized water and sewer are available, subject to the stated exceptions²⁵. Call Environmental Health at 352-334-7930 before relying on a seller's description of an existing system or designing a new one²⁶.

Can you live in an RV, tiny home or accessory unit on your land in Alachua County?

The published statewide rule for recreational vehicle parks and recreational camps does not answer whether you may live in an RV on a private unincorporated Alachua County parcel²⁷. We could not confirm a county rule that gives a general yes-or-no answer for private-land RV occupancy, so ask Growth Management Planning & Development about the parcel's zoning and the proposed duration before moving an RV onto it¹⁵. A manufactured or mobile home needs an onsite inspection for compliance with state installation standards before it gets a certificate of occupancy, and county zoning and site-development rules still apply²⁸. Alachua County allows one accessory dwelling unit in listed residential zoning districts and future land-use designations, with no minimum size stated in that rule and a maximum of 1,700 square feet or 50% of the principal residence's gross square footage, whichever is greater⁹. The zoning approval carries a $70 fee and comes before the building permit⁹. On a rural property under five acres without central sewer, the Health Department must confirm that combined septic impact will not exceed 700 gallons per day⁹.

Building a home in Alachua County: what are the steps, in order?

Confirm your parcel's zoning district, setbacks and future land-use designation with Growth Management Planning & Development at 352-374-5249 before you design anything¹⁵.
If you are not connecting to central sewer, get a site evaluation from the Florida Department of Health in Alachua County at 352-334-7930; on a Rural Cluster lot the minimum size for a well-and-septic lot is 1 acre²⁶⁷.
If your lot touches a mapped floodplain, get a flood zone determination from Alachua County Public Works at 352-337-6140 and a flood hazard area permit before you build²⁹¹⁰.
Apply for your building permit through the Building Division at 352-374-5243, with a site plan for driveway work or a full construction document set for a new home⁵¹⁶.
Schedule inspections as work proceeds; the county enforces the 2023 Florida Building Code, 8th Edition¹¹.
Your building permit is valid for 180 days from issuance, so line up your start date before you apply⁵.
After final inspection of electrical, gas, mechanical, plumbing and fire-protection systems, the building official issues your certificate of occupancy¹³.

What should you check before you buy land in Alachua County?

All mapped land in Alachua County is at a slope of 15% or less, and about 65.8% of the county is wooded³⁰³¹. Septic feasibility is a major variable: only about 15.1% of the county's soils rate as not severely limited for a conventional drain field, so order a site evaluation before assuming a standard system will work²³. Only about 0.5% of the county is federal land, but a buyer should still confirm whether a specific tract has conservation restrictions or protected areas³². The nearest city of 100,000 or more is about 3 miles from the county center, and countywide population density is about 326.6 people per square mile, so rural parcels may still sit near substantial development³³³⁴. Typical home insurance is about $2,159 per year, while the median property tax bill is about $2,623 per year at an effective rate near 1%³⁵³⁶³⁷. If the parcel is near a mapped flood zone, request a determination from Alachua County Public Works before closing because development in the floodplain requires a flood hazard area permit²⁹¹⁰. Confirm legal road access and whether a county right-of-way connection needs a driveway permit before treating an existing track as buildable access¹⁶.

Watch-outs

This guide could not confirm an operative minimum-dwelling-size or maximum-lot-coverage rule in Alachua County's published Unified Land Development Code material; confirm both with Growth Management Planning & Development at 352-374-5249 before you finalize a house design¹⁵.
Well permitting in Alachua County depends on which water management district your parcel sits in: the St. Johns River district requires a permit mainly for wells 6 inches or larger in diameter, while the Suwannee River district requires a permit for any well; confirm your district with the county before you plan a well³⁸³⁹.

Sources

Written September 28, 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.

How Alachua County scores

Seclusion29100% ev.

Self-Sufficiency66100% ev.

Admin Boringness44100% ev.

Durability71100% ev.

Property Autonomy91100% ev.

Carry Cost71100% 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 →

$308kTypical home

1%Property tax

$8,209Land / acre

52.4"Annual rain

6.6% of yrsSevere drought

6 / yr (+5.6)Mid-century 100°F days

16.9 daysMid-century dry spell

2.8" (+3.6%)Mid-century 1-day rain

1.1×Wildfire change factor

100%Forward climate coverage

$2,159Home insurance / yr

-6.3% / yrInsurance growth

1.18%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

218,473People within 30 min

4,056,358People within 2 hr

201,107Radius comparison (15 mi)

326.6People / sq mi

0.5%Federal land

100%Land at 15% slope or less

15.1%Septic soil without severe limits

77,967 acWorkable land screen

65.8%Wooded land

40.6 tonsBiomass / forest ac

69.7°FAvg temp

Answers from the rulebook for Alachua County

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

Alachua County rules

Owner-builder exemptionConditional
An owner performing work on a home the owner owns and occupies under Alachua County's building-permit jurisdiction.
- The owner may perform work on a home the owner owns and occupies.
- The property cannot be offered for sale or lease for one year after final completion of the project.
- The work remains subject to applicable permitting and owner-builder requirements.
post-completion sale or lease restriction: 1 year (Applies after final completion of the project.)
“It cannot be offered for sale or lease for one year after final completion of the project.”
Building Permits ↗Re-checked Sep 24, 2026
Building code adoptedAdopted (with conditions)
Building construction regulated by Alachua County's building-code authority, including the currently listed 2023 Florida Building Code 8th Edition.
- Alachua County adopted the Florida Building Code through Ordinance 02-01 on January 8, 2002.
- The ordinance adopted certain administrative amendments, wind speed lines for Alachua County, and a new swimming pool code for Alachua County.
- The ordinance took effect March 1, 2002.
- The county page lists the 2023 Florida Building Code 8th Edition with an effective date of December 31, 2023.
- The current county page lists design and construction components including building, residential, existing building, plumbing, fuel gas, mechanical, test protocols, energy, accessibility, and NEC code changes.
current listed code edition: 2023 Florida Building Code 8th Edition · current listed code effective date: 2023-12-31
“The Alachua County Board of County Commissioner by the adoption of Ordinance 02-01 on January 8, 2002, adopted the Florida Building Code with certain administrative amendments, adopted wind speed lines for Alachua County, and adopted a new swimming pool code for Alachua County. The Ordinance took effect on March 1, 2002 at the same time the Florida Building Code became effective throughout the State of Florida.”
Building Codes ↗Re-checked Sep 24, 2026
InspectionsRequired
Construction or work for which an Alachua County building permit is required.
- Construction or work requiring a permit is subject to inspection by the building official.
- The work must remain accessible and exposed for inspection until approved.
- The permit holder must notify the building official when work is ready for inspection and provide access and means for required inspections.
- Work may not proceed beyond each successive inspection point without approval.
- A final inspection is required upon completion before issuance of a Certificate of Occupancy or Certificate of Completion.
“shall be subject to inspection by the building official”
Alachua County Building Code ↗Re-checked Sep 24, 2026
Certificate of occupancyRequired
Use or occupancy of a building or structure, or a change in its existing occupancy classification, under the Alachua County Building Code.
- No building or structure may be used or occupied, and no occupancy-classification change may be made, until the building official issues a certificate of occupancy.
- The certificate may not be issued until all required electrical, gas, mechanical, plumbing, and fire-protection systems have been inspected for compliance and released by the building official.
- Certificates of occupancy are not required for work exempt from permits under Section 105.2.
- A temporary certificate of occupancy may be issued before all permitted work is complete if the portion can be occupied safely, for a maximum period of up to 90 days; the building official sets the validity period and may require cash surety equal to 110 percent of the estimated remaining work.
temporary certificate maximum period: <= 90 days (The building official sets the validity period.) · temporary certificate cash surety: 110 percent of estimated remaining work (May be required for unfinished work or plan revisions.)
“until the building official has issued a certificate of occupancy therefor”
Alachua County Building Code ↗Re-checked Sep 24, 2026
County-wide zoningPresent (with conditions)
New development in the unincorporated area of Alachua County.
- New development in the unincorporated area is required to meet the ULDC standards.
- The ULDC includes zoning, subdivision, and other regulations implementing the Comprehensive Plan.
- The county Board of County Commissioners has authority over rezonings, special exceptions, and special use permits.
“The Land Development Code (ULDC) is a collection of zoning, subdivision and other regulations that implement the policies of the Comprehensive Plan. New development in the unincorporated area is required to meet the standards of the ULDC.”
Land Development Code (ULDC) ↗Re-checked Sep 24, 2026
Local zoningVaries (with conditions)
Aggregate local zoning across Alachua County: county zoning applies in unincorporated areas, while incorporated municipalities administer their own land-development and zoning regulations.
- The county ULDC applies to new development in the unincorporated area.
- Municipal zoning rules apply within incorporated municipalities; Gainesville's official page identifies its Chapter 30 Land Development Code as containing zoning districts, permitted uses, and development-review requirements.
- This aggregate claim does not state that Alachua County administers municipal ordinances.
“Gainesville is the largest city and county seat of Alachua County. It serves as the cultural, educational and commercial center for the north central Florida region. The city provides a full range of municipal services, including police and fire protection; comprehensive land use planning and zoning services; code enforcement and neighborhood improvement; streets and drainage construction and maintenance; traffic engineering services; refuse and recycling services through a franchised operator; recreation and parks; cultural and nature services; and necessary administrative services to support these activities.”
Land Development Code (ULDC) ↗Re-checked Sep 24, 2026
Zoning districtsPublished (with conditions)
Zoning districts and associated use regulations for new development in unincorporated Alachua County.
- New development in the unincorporated area must meet ULDC standards.
- Chapter 403 establishes zoning districts implementing Future Land Use designations and describes each district.
- Chapter 404 identifies permitted, limited, accessory, prohibited, special-use-permit, and exception uses for each zoning district.
- Chapter 407 contains development standards including setbacks, parking, signs, landscaping, traditional neighborhoods, subdivision regulations, building design, street networks, and connectivity.
“New development in the unincorporated area is required to meet the standards of the ULDC.”
Land Development Code (ULDC) ↗Re-checked Sep 24, 2026
Minimum lot sizeSpecified
Single-family residential zoning districts in Rural Clusters in unincorporated Alachua County.
- The 1-acre minimum applies to development on private wells and septic tanks.
- Other zoning districts and development contexts may have different lot-size requirements.
minimum lot size: >= 1 acre (Rural Clusters; single-family residential zoning districts; development on private wells and septic tanks)
“In Rural Clusters, the minimum lot size within any single family residential zoning district shall be 1 acre for development on private wells and septic tanks.”
Unified Land Development Code, Chapter 403 ↗Re-checked Sep 24, 2026
SetbacksSpecified
Principal and accessory buildings on residential lots in unincorporated Alachua County single-family residential zoning districts.
- For lots less than 1 acre, principal-building setbacks are front or street 10 feet, garage front 20 feet, rear 10 feet, and side 5 feet; accessory buildings use the principal-building setbacks except the rear is 7.5 feet.
- For lots 1 acre or greater, principal-building setbacks are front or street 15 feet, garage front 20 feet, rear 15 feet, and side 10 feet; accessory buildings use the principal-building setbacks except the rear is 10 feet.
- Minimum side setbacks do not apply to zero lot line developments provided the building spacing requirements of the Florida Building Code, Table 600, are met.
- Minimum side setbacks do not apply to single family attached units.
- The garage-front setback applies only to the garage portion when the garage opening faces the front of the street.
front or street setback, lot less than 1 acre: 10 feet · garage front setback: 20 feet (applies only to the garage portion when the garage opening faces the front of the street) · rear setback, lot less than 1 acre: 10 feet · side setback, lot less than 1 acre: 5 feet (does not apply to zero lot line developments meeting Florida Building Code Table 600 spacing or to single family attached units) · front or street setback, lot 1 acre or greater: 15 feet · rear setback, lot 1 acre or greater: 15 feet · side setback, lot 1 acre or greater: 10 feet (does not apply to zero lot line developments meeting Florida Building Code Table 600 spacing or to single family attached units)
“Lots less than 1 acre in size, Minimum Principal Building (ft.) 10 20 10 5 Same as principal building except rear is 7.5 ft. Lots 1 acre or greater in size, Minimum Principal Building (ft.) 15 20 15 10 Same as principal building except rear is 10 ft.”
Unified Land Development Code, Chapter 403 ↗Re-checked Sep 24, 2026
One more reviewed finding on this topic
- Specified — Multifamily residential zoning districts in unincorporated Alachua County.
  “Setbacks around the Perimeter of the Development Front, min (ft) 25 25 25 Rear, min (ft) 20 20 20 Interior side, min (ft) 10 10 10 Street side, min (ft) 25 25 25”
  Unified Land Development Code, Multifamily Residential Standards ↗Re-checked Sep 24, 2026
Building heightDistrict specific (with conditions)
Multifamily residential zoning districts R-2, R-2a, and R-3 in unincorporated Alachua County.
- The maximum heights correspond to R-2, R-2a, and R-3 respectively.
- For buildings abutting single-family residential uses for zoning, the interior-side setback increases by six inches for each foot of building height over 35 feet.
maximum height, R-2: <= 35 feet · maximum height, R-2a: <= 45 feet · maximum height, R-3: <= 60 feet
“Zoning District R-2 R-2a R-3 [...] Height, max (feet) 35 45 60”
Unified Land Development Code, Multifamily Residential Standards ↗Re-checked Sep 24, 2026
One more reviewed finding on this topic
- Specified — All structures within single-family residential zoning districts in unincorporated Alachua County.
  “The maximum height for all structures within the single family residential zoning districts is 35 feet.”
  Unified Land Development Code, Chapter 403 ↗Re-checked Sep 24, 2026
Accessory dwellingsAllowed (with conditions)
One accessory dwelling unit attached or detached from a principal residence in the listed Alachua County residential zoning districts and future land-use designations.
- Allowed in A, RE, RE-1, R-1aa, R-1a, R-1b, and R-1c zoning districts located in Rural/Agriculture, Rural Cluster, Estate Residential, Low Density, or Medium Density future land-use designations.
- The ADU has no minimum size and may be up to 1,700 square feet of heated/cooled living area or 50% of the principal residence gross square footage, whichever is greater.
- The ADU must meet the zoning-district setbacks and use the same driveway as the principal residence.
- Where central water and sewer are unavailable, the ADU must share the primary residence's septic system and well subject to County Health Department approval.
- For rural properties under five acres, Health Department confirmation is required that combined septic impact will not exceed 700 gallons per day.
- If homestead exemption is lost, the separate residence's kitchen and other facilities must be removed; if either home is manufactured, it is not eligible for replacement unless one of the homes is removed.
- An initial zoning approval requires a site plan, floor plan, and ADU affidavit; the zoning permit fee is $70, followed by a building permit for construction or placement.
maximum ADU count: 1 ADU per principal residence · maximum heated/cooled living area: 1,700 square feet or 50% of principal residence gross square footage, whichever is greater · combined septic impact threshold for rural properties under five acres: <= 700 gallons per day · zoning permit fee: 70 USD
“One additional living unit is allowed accessory to the principal residence without counting toward gross residential density in the following residential zoning districts: A, RE, RE-1, R-1aa, R-1a, R-1b and R-1clocated in the Rural/Agriculture, Rural Cluster, Estate Residential, Low Density, or Medium Density future land use designations.”
Accessory Dwelling Units ↗Re-checked Sep 24, 2026
Who permits septicLocal
Septic system permitting and inspections in Alachua County.
- The local administering office is the Alachua County Health Department.
- Florida Department of Environmental Protection remains responsible for enforcing Florida OSTDS laws and rules.
“local county health department will still handle septic system permitting and inspections.”
Onsite Sewage Disposal ↗Re-checked Sep 24, 2026
Septic permitRequired
Proposed septic installations, repairs, modifications, and approvals of existing onsite sewage systems in Alachua County.
- Permit applications are handled by the Alachua County Health Department.
- Applicable state OSTDS standards and any basin-specific nutrient-reduction requirements may also apply.
“To obtain a permit for proposed installations, repairs, modifications, and approvals of existing systems, contact the Alachua County Health Department”
Septic Systems and Rebates ↗Re-checked Sep 24, 2026
Off-grid sanitationLimited
Private well and septic systems serving residential lots in Alachua County where centralized potable water and sanitary sewer connection is not required or an exception is granted.
- Residential private well and septic systems must comply with the lot-size requirements in Table 407.110.1.
- Installation must meet state standards.
- Installation must receive approval from the local health department.
- Urban Cluster connection requirements and any approved exceptions remain applicable.
“Private well and septic systems are permitted on residential lots”
Unified Land Development Code, Chapter 407 Article 11 ↗Re-checked Sep 24, 2026
Well permitLimited
Well construction, repair, or abandonment in the St. Johns River Water Management District portion of Alachua County.
- A permit is required for wells at least six inches in diameter, public supply wells, wells in an FDEP-delineated area, and injection wells.
- For wells less than six inches in diameter, no permit is required, but a well completion report must be submitted to SJRWMD and to the Alachua County Environmental Protection Department, along with a county well registration form.
- A consumptive use permit is also required when a well is at least six inches in diameter, average annual use is 100,000 gallons per day or greater, or pumping capacity is 1,000,000 gallons per day or more.
well diameter threshold: >= 6 inches (Wells less than six inches in diameter do not require a permit but require completion reporting and county registration.) · average annual water use threshold: >= 100000 gallons/day (Consumptive use permit threshold.) · pumping capacity threshold: >= 1000000 gallons/day (Consumptive use permit threshold.)
“A permit is required for the construction, repair or abandonment of:”
Well Permits ↗Re-checked Sep 24, 2026
One more reviewed finding on this topic
- Required — Any well construction, repair, or abandonment in the Suwannee River Water Management District portion of Alachua County.
  “The property owner must obtain a permit from the SRWMD”
  Well Permits ↗Re-checked Sep 24, 2026
Mandatory utility hookupWater and sewer (with conditions)
New development or redevelopment within the Alachua County Urban Cluster, including new subdivisions, subdivision expansions, multifamily development, new non-residential or mixed-use development, and expansions of non-residential or mixed-use development.
- Connection is required when centralized potable water and sanitary sewer systems are available for connection.
- Exceptions may be provided for certain non-residential uses and new residential development designated Estate Residential when connection is infeasible because of specified engineering factors.
- An exception requires a conceptual future-connection plan and enforceable conditions for future connection and abandonment of onsite private wells and septic systems.
- Nothing in the policy exempts a development from statutory connection requirements under Florida Statutes section 381.00655.
“required for all new development or redevelopment within the Urban Cluster.”
PortableWater ↗Re-checked Sep 24, 2026
Driveway accessRequired
Driveway construction and County right-of-way driveway connections in Alachua County.
- A site plan is required when the project is to build a driveway.
- A right-of-way connection requires a driveway permit through the Alachua County Online Permitting Portal.
- The cited County pages also identify separate municipal contacts for some incorporated communities; the applicable road or right-of-way administrator may therefore vary by location.
“That depends on the nature of the project. For example, you will need to submit a site plan if you want to build a driveway, construction drawings if your building an addition, a whole set of construction documents if your building a new home, and any other documents as required by the Building Division.”
Building Permits ↗Re-checked Sep 24, 2026
Building in a floodplainRequired
Any development in the floodplain within Alachua County areas governed by the County Unified Land Development Code.
- A flood hazard area permit is required for any development in the floodplain under ULDC Chapter 406.
- Flood zone determinations are available from Alachua County Public Works at 352-337-6140; the page separately lists the City of Gainesville Public Works for Gainesville locations.
- Substantial improvement includes repair, reconstruction, improvement, or additions costing 50 percent or more of the structure's assessed tax value, determined before the improvement or, for damaged structures, before the damage occurred.
substantial improvement threshold: >= 50 percent of assessed tax value (The assessed value is determined before improvement begins, or before damage/destruction occurred when a damaged structure is being restored.)
“Any development in the floodplain requires a flood hazard area permit according to the Unified Land Development Code Ch. 406.”
Development Review & Flood Zone Information ↗Re-checked Sep 24, 2026
Short-term rentalsLimited
Short-term rental use of an accessory dwelling unit in Alachua County.
- The ADU must be properly permitted.
- Tourist Development taxes must be paid.
- The owner must live on the property in either the primary or accessory unit.
- The owner must maintain the homestead exemption.
- The Tourist Development Tax is 5 percent of revenue from rentals of six months or less.
- The tax applies to short-term rentals of living quarters or accommodations including homes and rooms; it must be charged by the person receiving consideration and collected from the lessee, tenant, or customer at payment.
Tourist Development Tax: 5 percent of rental revenue (Rentals of six months or less)
“Yes. As long as the ADU is properly permitted and the Tourist Development taxes are paid, the extra unit may be a short-term rental property as long as the owner lives on the property in either the primary or the accessory unit and maintains their homestead exemption.”
Accessory Dwelling Units ↗Re-checked Sep 24, 2026
Building permitRequired
Under the Florida Building Code, an Alachua County building permit is required whenever an owner or contractor desires to construct, enlarge, alter, move, or demolish a building or structure; new residential construction requires a permit from the county Building Division.
Alachua County - Building Permits ↗Scouted from the county site, not yet independently re-checked

Florida rules that apply here

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.”
Florida Building Commission Building Codes ↗Re-checked Sep 26, 2026
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.”
Florida Statutes Chapter 513: Mobile Home and Recreational Vehicle Parks ↗Re-checked Sep 9, 2026
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.”
Florida Statutes § 553.385, Zoning of off-site constructed residential dwellings; parity ↗Re-checked Sep 26, 2026
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.”
  Florida Statutes § 320.8285: Onsite inspection ↗Re-checked Sep 9, 2026
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).”
Onsite Sewage Program ↗Re-checked Sep 26, 2026
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”
Florida Statutes § 604.50, Nonresidential farm buildings; farm fences; farm signs ↗Re-checked Sep 26, 2026
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”
  Florida Statutes § 604.50, Nonresidential farm buildings; farm fences; farm signs ↗Re-checked Sep 26, 2026
- 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.”
  F.S. 604.50 — Nonresidential farm buildings; farm fences; farm signs ↗Re-checked Sep 26, 2026
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.”
Florida Statutes Chapter 177, Land Boundaries ↗Re-checked Sep 26, 2026
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.”
  F.S. 163.3202 — Land development regulations ↗Re-checked Sep 26, 2026
Permit feesVariable (with conditions)
Building permits throughout Florida; the enforcing agency adopts the applicable reasonable fee.
- The opening exception is 'Unless otherwise provided by law.'
- Fees are adopted by the appropriate enforcing agency, which may be a state or local enforcing agency.
- The permit requirement applies before construction, erection, alteration, modification, repair, or demolition of a building.
“upon the payment of such reasonable fees adopted by the enforcing agency.”
F.S. 553.79 — Permits; applications; issuance; inspections ↗Re-checked Sep 26, 2026
Permit processPublished (with conditions)
Building permit applications submitted to Florida local governments.
- The application must be complete and sufficient.
- The applicant may waive the statutory timeframes in writing.
- For an existing single-family dwelling with work valued below $15,000, the listed permit types have a 5-business-day timeframe.
- Applications for structures below 7,500 square feet generally have a 30-business-day timeframe; structures 7,500 square feet or more generally have a 60-business-day timeframe.
- The local government must provide written notice within 5 business days if information is needed to deem the application complete; failure to provide timely notice automatically deems the application properly completed and accepted.
- A local ordinance may provide more stringent timeframes.
- If deadlines are missed, fee reductions apply, subject to written extensions, applicant-caused delay, force majeure, extraordinary circumstances, or timely written notice of code deficiencies.
- If deficiencies are noticed, the applicant has 10 business days to submit revisions; the agency then has 10 business days to approve or deny after receiving revisions.
initial completeness notice: 5 business days (unless the local government timely notifies the applicant that the application is incomplete) · existing single-family dwelling permit review: 5 business days (work value less than $15,000 and listed permit types) · permit review for structure less than 7,500 square feet: 30 business days (listed permit types using a local government plans reviewer) · permit review for structure 7,500 square feet or more: 60 business days (listed permit types using a local government plans reviewer)
“A local government must approve, approve with conditions, or deny a building permit application after receipt of a completed and sufficient application within the following timeframes, unless the applicant waives such timeframes in writing:”
F.S. 553.792 — Building permit application to local government ↗Re-checked Sep 26, 2026
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”
Florida Statutes Chapter 513: Mobile Home and Recreational Vehicle Parks ↗Re-checked Sep 9, 2026
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”
Florida Statutes § 125.01, Powers and duties ↗Re-checked Sep 26, 2026
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.”
  Florida Statutes § 125.01 — Powers and duties ↗Re-checked Sep 26, 2026
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.”
Florida Statutes § 125.56 — Enforcement and amendment of the Florida Building Code ↗Re-checked Sep 26, 2026

Inside cities and towns in Alachua County

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

Local zoningPresent (with conditions)
Development within the City of Gainesville, an incorporated municipality in Alachua County.
- The City's Land Development Code is Chapter 30 of the City Code of Ordinances.
- The code contains zoning districts, permitted uses, specially regulated uses, and development-plan review requirements.
“The Land Development Code, which is Chapter 30 of the City's Code of Ordinances, contains development-related regulatory information. Included are definitions of zoning districts, permitted uses in zoning districts, requirements for specially regulated uses, development plan review process, environmental management, and special area plans.”
Land Development Code ↗Re-checked Sep 24, 2026

Still unanswered

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

Lot coverage — Maximum lot coverage in unincorporated Alachua County.

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 Alachua County, Florida

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

Alachua County scores 62/100 on the Bolthole Index, a solid county profile. Its strengths: a stronger property-autonomy legal backdrop and manageable long-term carry cost. Watch-outs: about 218,473 people within a 30-minute drive.

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

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

Land in Alachua County runs about $8,209 per acre, based on the latest county data.

What is the water situation in Alachua County?

Alachua County gets about 52.4" of rain a year, with severe drought in roughly 6.6% of years.

How remote is Alachua County?

A representative private-land location has about 218,473 people within a 30-minute drive and 4,056,358 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.

Building permits, zoning and land rules in Alachua County, Florida

At a glance

Who to call

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

Who is the Alachua County building department?

Does Alachua County have zoning?

How do septic permits work in Alachua County?

Can you live in an RV, tiny home or accessory unit on your land in Alachua County?

Building a home in Alachua County: what are the steps, in order?

What should you check before you buy land in Alachua County?

Watch-outs

Sources

Alachua County in Florida

How Alachua County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Alachua County

Alachua County rules

Florida rules that apply here

Inside cities and towns in Alachua County

Still unanswered

Living off-grid in Alachua County, Florida

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

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

How much does land cost in Alachua County, Florida?

What is the water situation in Alachua County?

How remote is Alachua County?

How Alachua compares in Florida