St. Lucie County, FL Building Permits, Zoning & Septic Rules

Unincorporated St. Lucie County, Florida requires a building permit for a home through the county's Permitting/Zoning Division¹. The same division administers zoning under the county's Land Development Code². The Florida Department of Health in St. Lucie County handles septic and well permits³⁴.

At a glance

Building permit: Required, issued by the county's Permitting/Zoning Division¹
Zoning: Yes, under the county's Land Development Code²
Septic permits: Required through the Florida Department of Health in St. Lucie County⁵
Owner-builder: Allowed under FS 489.103(7) if you own, occupy and personally supervise⁶
RV living on your own land: Not established statewide; state rules only cover licensed RV parks/camps⁷
Private wells: All wells require a permit through the local health department⁴
Septic soil suitability: Almost no soil is free of severe limits for a conventional drain field⁸

Who to call

Building permits

St. Lucie County Planning and Development Services, Permitting/Zoning Division

Building permits, plan review and inspections, and zoning administration under the county's Land Development Code for unincorporated St. Lucie County

(772) 462-1553

2300 Virginia Avenue, Fort Pierce, FL 34982

Septic permits

Florida Department of Health in St. Lucie County, Environmental Public Health

Onsite sewage treatment and disposal system (septic/OSTDS) construction, repair and abandonment permits, soil/site evaluations, and septic/well permit records for St. Lucie County

772-873-4931

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

Do you need a building permit in St. Lucie County, Florida?

Yes. St. Lucie County requires a permit for construction, erection, alteration, repair and occupancy of buildings in unincorporated St. Lucie County¹. Florida has adopted the Florida Building Code statewide, with local amendments allowed where state law permits them⁹. An owner who owns and occupies the home may act as owner-builder, but must personally supervise work not completed alone and hire licensed trade subcontractors for electrical, plumbing, A/C and roofing⁶¹⁰. County fees include a $75 minimum plan-review fee; the listed single-family residence fee is $250 for a contractor permit or $350 for an owner-builder permit, before other applicable charges¹¹.

Who is the St. Lucie County building department, and how do you reach them?

Building permits for unincorporated St. Lucie County are issued by the county's Planning and Development Services Permitting/Zoning Division¹⁰. The permit center is at 2300 Virginia Avenue, first floor, southwest corner of the building, in Fort Pierce, open Monday through Friday from 8:00 a.m. to 4:30 p.m.; call (772) 462-1553¹⁰. The same division administers zoning for unincorporated areas, making it the first stop for both a parcel's zoning district and its building-permit path². The county publishes building and zoning fees, including $25 for zoning verification and $25 for a flood-zone verification letter¹¹.

Does St. Lucie County have zoning?

Yes. Unincorporated St. Lucie County is zoned under the county's Land Development Code, administered by the Permitting/Zoning Division². The parcel's zoning district controls questions such as setbacks, lot dimensions and allowed uses, so obtain zoning verification before designing a house or placing another dwelling²¹¹. County Towns, Villages and Countryside policies address accessory dwelling units in a limited single-family-development context: an individual lot owner must verify potable water and sanitary sewer service, and a mobile home or recreational vehicle does not count as an accessory dwelling unit¹². We could not confirm a general countywide ADU authorization outside that context, so ask the Permitting/Zoning Division about the parcel's district before relying on an accessory unit¹⁰.

How do septic permits work in St. Lucie County?

The Florida Department of Health in St. Lucie County handles onsite sewage treatment and disposal system permits³¹³. Submit the septic application with a soil evaluation completed by a qualified private site evaluator; the site plan must be to scale, and the package calls for three floor-plan copies and three site-plan copies⁵. Clear the lot before applying and provide any gate code or access information so the property can be evaluated⁵. Only about 0.4% of county soil is rated without severe limitations for a conventional drain field, making an early site evaluation especially important⁸. Plans and forms prepared by a licensed engineer must be dated, signed and sealed⁵.

Can you live in an RV or tiny home on your land in St. Lucie County?

Florida's rule for transient RV stays applies to permitted recreational vehicle parks and camps; it does not establish permission to live in an RV on private land⁷. St. Lucie County's Towns, Villages and Countryside policies also say a recreational vehicle or mobile home does not qualify as an accessory dwelling unit¹². We could not confirm the complete county rule for private-land RV occupancy, temporary camping, tiny homes or minimum dwelling size, so ask the Permitting/Zoning Division about the parcel and proposed use before buying¹⁰. A tiny home proposed as a dwelling still faces the county's building-permit and zoning reviews¹².

Building a home in St. Lucie County: the steps, in order

Confirm the parcel's zoning district and proposed use with the Permitting/Zoning Division before design begins²¹⁰.
If the parcel is off sewer, obtain a private soil evaluation, clear the lot and submit the scaled plans and septic application to the Florida Department of Health in St. Lucie County⁵.
If the parcel needs a private well, apply through the local health department, which is responsible for permitting all wells in St. Lucie County⁴.
Choose a licensed contractor or qualify as an owner-builder who owns and occupies the home and personally supervises the work⁶¹⁰.
Submit the building plans and fees to the Permitting/Zoning Division; the minimum plan-review fee is $75¹¹.
For a home in a Special Flood Hazard Area, include an Elevation Certificate with the construction documents, during construction and before final approval¹⁴.

What to check before you buy land in St. Lucie County

Check sewer availability and soil suitability before treating a parcel as buildable: only about 0.4% of county soil is rated without severe limitations for a conventional septic drain field⁸. A private well also needs a permit from the Florida Department of Health in St. Lucie County⁴. Determine whether the home site falls in a Special Flood Hazard Area, because the county requires an Elevation Certificate at three stages for residential construction there¹⁴. Confirm legal access and driveway requirements with the Permitting/Zoning Division because we could not confirm the complete county driveway-permit rule¹⁰. For carrying costs, the median property-tax bill is about $2,893 a year, the effective property-tax rate is about 0.9%, and typical homeowners insurance is about $2,777 a year¹⁵¹⁶¹⁷.

Watch-outs

Only about 0.4% of St. Lucie County soil is rated without severe limitations for a conventional drain field, so order the required private soil evaluation early⁸⁵.
A home in a Special Flood Hazard Area needs an Elevation Certificate with its construction documents, during construction and before final approval¹⁴.
An RV does not qualify as an accessory dwelling unit under the county policy, and the complete private-land RV occupancy rule remains unconfirmed; ask the Permitting/Zoning Division before relying on RV living¹²¹⁰.

Sources

Written September 29, 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 St. Lucie County scores

Seclusion16100% ev.

Self-Sufficiency50100% ev.

Admin Boringness44100% ev.

Durability64100% 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 →

$373kTypical home

0.9%Property tax

$6,408Land / acre

54.5"Annual rain

7.1% of yrsSevere drought

0.8 / yr (+0.8)Mid-century 100°F days

14.4 daysMid-century dry spell

2.6" (+2.8%)Mid-century 1-day rain

1.01×Wildfire change factor

100%Forward climate coverage

$2,777Home insurance / yr

-3.2% / yrInsurance growth

0.52%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

357,206People within 30 min

7,689,272People within 2 hr

361,853Radius comparison (15 mi)

653.5People / sq mi

0.1%Federal land

99.6%Land at 15% slope or less

0.4%Septic soil without severe limits

1,404 acWorkable land screen

35.4%Wooded land

28.1 tonsBiomass / forest ac

73.8°FAvg temp

Answers from the rulebook for St. Lucie County

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

St. Lucie County rules

Accessory dwellingsLimited
Accessory dwelling units within single-family development addressed by the County’s Towns, Villages and Countryside policies.
- Accessory dwelling units must be evaluated for concurrency when proposed as part of a Town or Village.
- For an individual lot owner, only verification of potable water and sanitary sewer service is required.
- A mobile home or recreational vehicle does not constitute an accessory dwelling unit.
- The source states that accessory dwelling units do not constitute a unit for density-limitation purposes.
“When proposed by an individual lot owner, only verification of potable water and sanitary sewer service shall be required.”
Towns, Villages and the Countryside Element ↗Re-checked Sep 25, 2026
Septic permitRequired
OSTDS permitting for septic systems in St. Lucie County.
- Applications should include a soil evaluation by a qualified private site evaluator.
- Site plans must be to scale and contain required information.
- Three copies of floor plans and three copies of site plans are submitted.
- Plans and forms submitted by a licensed engineer must be dated, signed, and sealed.
- The lot should be cleared before submitting the septic application.
- Gate codes or property-access information must be provided upon application.
“Submit the application with the soil evaluation, completed by a private site evaluator (list of qualified individuals).”
Onsite Sewage Disposal ↗Re-checked Sep 25, 2026
Well permitRequired
All wells in St. Lucie County.
- The program is delegated from South Florida Water Management District.
- Construction and abandonment requirements are detailed in Chapters 62-532 and 40E-3, Florida Administrative Code.
“The program is delegated from South Florida Water management to be responsible for permitting ALL wells in this county.”
Private Wells ↗Re-checked Sep 25, 2026
Building in a floodplainLimited
Residential construction in a Special Flood Hazard Area in unincorporated St. Lucie County.
- Homes in a Special Flood Hazard Area must submit an Elevation Certificate with construction documents, under-construction documentation, and before final.
- The opened checklist states that additional documents may be requested and exceptions require supervisor approval.
“Homes located in the Special Flood Hazard Area will be required to submit an Elevation Certificate with Construction Documents, Under Construction, and Prior to Final.”
Checklist for Single Family Residence and addition permits ↗Re-checked Sep 25, 2026
Permit feesPublished
County building and zoning permit fees published in St. Lucie County’s fee schedule.
- Plan review fees are non-refundable unless no staff review was performed.
- The minimum plan review fee is $75.00.
- Residential permits include one inspection trip; each additional inspection/trip, if required, is $75.00.
- Private-provider reductions do not apply to surcharge, trust, or BIMS fees.
- The schedule states it was amended by Resolution #2024-53, among other listed amendments.
minimum plan review fee: 75 USD · additional inspection/trip: 75 USD (Each additional inspection/trip if required.) · single-family residence contractor fee: 250 USD · single-family residence owner/builder fee: 350 USD · zoning verification fee: 25 USD · flood zone verification letter: 25 USD
“All plans examination fees are NON-REFUNDABLE unless there was no review performed by staff. Minimum Plan Review Fee is $75.00.”
Building Permit Fees ↗Re-checked Sep 25, 2026
Building permitRequired
Per Florida Building Code 102.2 as administered by St. Lucie County, a permit is required for construction, erection, alteration, repair and use/occupancy of buildings in unincorporated St. Lucie County.
St. Lucie County Planning & Development Services ↗Scouted from the county site, not yet independently re-checked
County-wide zoningPresent
St. Lucie County administers zoning through its Permitting/Zoning division and Land Development Code for unincorporated areas.
St. Lucie County Planning & Development Services ↗Scouted from the county site, not yet independently re-checked
Owner-builder exemptionAvailable
St. Lucie County recognizes the Florida Statutes 489.103(7) owner-builder exemption allowing owners who own and occupy the home to act as their own contractor.
St. Lucie County Planning & Development Services ↗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.”
61G20-1.001 Florida Building Code Adopted ↗Re-checked Sep 9, 2026
2 more reviewed findings on this topic
- 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.”
  Florida Statutes § 553.73 — Florida Building Code ↗Re-checked Sep 26, 2026
- 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.”
  Florida Statutes § 553.73, Florida Building Code ↗Re-checked Sep 26, 2026
InspectionsRequired
New construction, or repair or restoration that modifies the structural system or structural loading, of a Florida threshold building.
- The enforcing agency must require a special inspector to perform structural inspections pursuant to a structural inspection plan prepared by the engineer or architect of record.
- The structural inspection plan must be submitted to and approved by the enforcing agency before issuance of the building permit.
- The fee owner selects and pays the special inspector, who must be an engineer or architect qualified under the cited statutes.
- This threshold-building requirement is in addition to minimum inspections required by the Florida Building Code.
“shall require a special inspector to perform structural inspections on a threshold building”
Florida Statutes § 553.79 — Threshold-building structural inspections ↗Re-checked Sep 9, 2026
Certificate of occupancyRequired
Projects using Florida’s private-provider building-code inspection process after completion of required inspections.
- The applicant must submit a request for a certificate of occupancy or certificate of completion, the private provider’s certificate of compliance, all other government approvals required by law, and outstanding fees.
- The local building official must issue the certificate or identify incomplete forms or documents within 10 business days, or within 2 business days for a permit relating to a single-family or two-family dwelling.
- If the official does not provide timely notice of incomplete forms or documents, the request is automatically granted and deemed issued on the next business day; the written certificate must then be provided within 10 days.
local official response deadline: 10 business days (2 business days for a permit relating to a single-family or two-family dwelling) · automatic issuance timing after missed deadline: next business day · written certificate after automatic issuance: 10 days
“the local building official shall issue the certificate of occupancy or certificate of completion”
Florida Statutes § 553.791 — Private-provider inspections and certificates of occupancy ↗Re-checked Sep 9, 2026
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
Who permits septicMixed (with conditions)
Florida's statewide OSTDS program, including permitting, inspections, and enforcement.
- DEP has statewide responsibility for implementing and enforcing Florida OSTDS laws and rules.
- DEP permitting and inspections have transitioned for 16 Panhandle counties and Marion County.
- Outside the transitioned counties, local county health departments continue handling septic permitting and inspections.
- The FAQ states that transition of the remaining 50 counties depends on legislative approval.
“DEP is permitting OSTDS in Northwest Florida and Marion County. The transition of the remaining 50 counties will occur depending on legislative approval.”
Onsite Sewage FAQ - Permitting ↗Re-checked Sep 26, 2026
2 more reviewed findings on this topic
- Mixed — Statewide onsite sewage treatment and disposal system permitting and enforcement in Florida.
  “During the transition period, applicants will apply for permits and services in two separate ways, depending on in which county they are requesting a permit.”
  Onsite Sewage & Septic ↗Re-checked Sep 26, 2026
- Mixed — Statewide OSTDS regulation, enforcement, permitting, and inspection in Florida.
  “The Onsite Sewage Treatment and Disposal System (OSTDS) permitting program has implemented the first phase of the transition from the Florida Department of Health (DOH) to the Florida Department of Environmental Protection (DEP). DEP is permitting OSTDS in Northwest Florida and Marion County. The transition of the remaining 50 counties will occur depending on legislative approval.”
  Onsite Sewage Program ↗Re-checked Sep 26, 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
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.”
2026 Florida Statutes, section 381.00655 ↗Re-checked Sep 26, 2026
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.”
  Florida Statutes § 381.00655 ↗Re-checked Sep 26, 2026
- 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.”
  Florida Statutes § 381.00655 ↗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
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.”
F.S. 509.032 — Duties of the Division of Hotels and Restaurants ↗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

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 unincorporated St. Lucie County and incorporated municipalities.
Setbacks — Building setbacks in unincorporated St. Lucie County.
Lot coverage — Lot coverage in unincorporated St. Lucie County.
Building height — Building height in unincorporated St. Lucie County.
Living in an RV — RV occupancy on private land in unincorporated St. Lucie County.

3 more unanswered

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 St. Lucie County, Florida

Is St. Lucie County a good place to live off-grid or homestead?

St. Lucie County scores 45/100 on the Bolthole Index, a marginal county profile. Its strengths: a stronger property-autonomy legal backdrop and manageable long-term carry cost. Watch-outs: about 357,206 people within a 30-minute drive.

Do you need a building permit in St. Lucie County, Florida?

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

Land in St. Lucie County runs about $6,408 per acre, based on the latest county data.

What is the water situation in St. Lucie County?

St. Lucie County gets about 54.5" of rain a year, with severe drought in roughly 7.1% of years.

How remote is St. Lucie County?

A representative private-land location has about 357,206 people within a 30-minute drive and 7,689,272 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 St. Lucie County, Florida

At a glance

Who to call

Do you need a building permit in St. Lucie County, Florida?

Who is the St. Lucie County building department, and how do you reach them?

Does St. Lucie County have zoning?

How do septic permits work in St. Lucie County?

Can you live in an RV or tiny home on your land in St. Lucie County?

Building a home in St. Lucie County: the steps, in order

What to check before you buy land in St. Lucie County

Watch-outs

Sources

St. Lucie County in Florida

How St. Lucie County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for St. Lucie County

St. Lucie County rules

Florida rules that apply here

Still unanswered

Living off-grid in St. Lucie County, Florida

Is St. Lucie County a good place to live off-grid or homestead?

Do you need a building permit in St. Lucie County, Florida?

How much does land cost in St. Lucie County, Florida?

What is the water situation in St. Lucie County?

How remote is St. Lucie County?

How St. Lucie compares in Florida