Clewiston

ADU Pass helps homeowners in Clewiston, Hendry County, Florida navigate the permit paperwork for building an accessory dwelling unit. This area covers 1 ZIP code.

1 ZIP code

ADU details

ADU legality: allowed-with-restrictions

Statewith-restrictions (Florida accessory-dwelling framework) — § 163.31771 FS is permissive; local jurisdictions retain full authority. SB 48 / HB 313 (2026 session) would broaden preemption if enacted.
Countyallowed (Hendry County unincorporated zoning) — Hendry County permits ADUs in unincorporated areas under state-law-aligned standards. Clewiston city limits are governed by city code.
Cityallowed (City of Clewiston Land Development Code / zoning) — Clewiston permits ADUs subject to Florida Building Code, FEMA AE-zone elevation, and Lake Okeechobee dike-floodplain considerations.

Clewiston is the home of US Sugar Corporation ("Big Sugar") on the south shore of Lake Okeechobee; ADU permitting follows City of Clewiston code with FEMA elevation and county coordination.

Cost scenarios

ScenarioSq ft PermitBuildTotal
minimum 150 $2,400 $27,750 $30,150
600 600 $2,400 $111,000 $113,400
midpoint 575 $2,400 $106,375 $108,775
maximum 1,000 $2,400 $185,000 $187,400
Fee breakdown
Plan review$720
Building permit$1,320
Impact fees$360
Total$2,400

Viability (permitted uses)

  • Long-term rental: yes Long-term rental of ADU generally permitted; landlord-tenant law applies.
  • Short-term rental: with-restrictions Clewiston STR rules — check minimum-stay limits, registration, and HOA covenants.
  • Office rental: with-restrictions Detached office rental requires home occupation permit.
  • Home office: yes Home occupation permitted with restrictions on signage and customer traffic.
  • Studio / workshop: yes Personal artist studio is a permitted accessory use.
  • Agriculture: with-restrictions Limited urban agriculture permitted in residential zones; livestock varies by district.
  • Relative support: yes Family-occupancy ADU explicitly permitted; § 193.703 FS granny-flat assessment reduction available.

Utilities

  • Water: City of Clewiston Water Utility · 30d connect · $4,500
  • Sewer: City of Clewiston Wastewater · 30d connect · $5,500
  • Electric: Duke Energy Florida / Talquin Electric Cooperative / FPL (varies) · 21d connect · $1,800
  • Gas: Propane · 30d connect · $1,500

Property values & taxes

Median value$175,000
Median tax$1,575/yr
Effective rate0.9%

Construction timeline

Detached build22 weeks
Conversion12 weeks
Contractor lead5 months

Realistic total: best 7mo · typical 11mo · worst 16mo

Financing

Fannie Mae ADUeligible

State ADU loans:

Insurance impact

Annual premium delta$720
Landlord policyrecommended
Umbrella threshold$1M umbrella when renting

HOA prevalence & preemption

State HOA preemptionno

Florida has no HOA-ADU preemption; HOA covenants restricting ADUs are enforceable.

Regulatory overlays (2)

  • flood-zone
    Lake Okeechobee floodplain and Caloosahatchee/Kissimmee River corridors; FEMA AE zones widespread.
  • rural-agricultural
    Sugar-cane / cattle / citrus region; Ag-zoned land dominates outside city limits.
Technical envelope (climate & building code)

Climate & energy code

IECC climate zone2A
Heating degree days500
Cooling degree days3,700
Design low / high44°F / 92°F
Wind design speed160 mph
Seismic design cat.A
Annual rainfall50"
Wildfire exposurelow
Energy codeIECC
Version / adopted2020 / 2024

Building code

Base codeIRC
Version year2,020
Adopted2024
Fire sprinklernone
Egress window5.7 sqft min
Min ceiling7 ft
Attic R-valueR-38 min
Wall R-valueR-13 min

Amendments:

  • Amendment
  • Amendment

Known issues (4)

  • issue
  • issue
  • issue
  • issue
Hendry County — county ADU rules and overlays

County ADU ordinance

Hendry County is a rural inland south-Florida county (population ~42,000, LaBelle is the county seat) with a non-charter commission form of government. The economy is dominated by sugarcane (U.S. Sugar Corporation, based in Clewiston), citrus, cattle, and winter vegetable production. The Hendry County Land Development Code (LDC), administered by the Planning & Community Development Department, governs unincorporated land use and applies to most of the county's area. The LDC does NOT contain a standalone ADU ordinance; accessory dwellings are handled through the A-1 Agricultural district (second dwelling allowed on parcels >=5 acres as accessory to an ag operation, typically for farmworker or family housing), A-2 Agricultural Residential, and R-1/R-2 residential districts (guest houses <=800 sqft without full kitchen broadly permitted, second full dwellings require conditional-use approval). Hendry is notably heavy on mobile-home and manufactured-home housing — 30%+ of county housing stock is mobile/manufactured — and the LDC explicitly permits mobile-home second dwellings and farmworker barracks in several districts. No standalone ADU rulemaking is pending as of 2026-04-20.

County regulatory overlays

Hendry County's county-wide overlays relevant to ADU siting: (1) FEMA SFHAs concentrated along the Caloosahatchee River corridor, Lake Okeechobee shoreline (northeast corner), and canal systems; (2) Lake Okeechobee Service Area regulatory overlay (northeast Hendry) with SFWMD stormwater and BMAP requirements; (3) SFWMD jurisdiction county-wide including Everglades restoration easements on some southwestern parcels; (4) Florida Panther Focus Area (federally designated critical habitat for the Florida panther) covering portions of southwestern Hendry, requiring USFWS consultation for some development; (5) Seminole Tribe trust lands in the Big Cypress Reservation (southeastern Hendry) — NOT under county jurisdiction, separate tribal land-use authority; (6) Florida Building Code 140-150 mph design-wind-speed region (non-HVHZ) with hurricane-zone construction. No seismic, no coastal-commission.

County permitting (unincorporated parcels)

Almost all of Hendry County's developable area is unincorporated — the two municipalities (LaBelle, Clewiston) together cover under 10 square miles of a ~1,200 sq mi county. ADU-adjacent construction is permitted by the Hendry County Building Department (part of Development & Environmental Services) at the county government complex in LaBelle. Hendry uses the Florida Building Code as adopted without material local amendments. The department handles substantial mobile-home / manufactured-home permit volume (installation, tie-down, skirting) alongside stick-built permits. Typical single-family / accessory-dwelling permit review runs 3-6 weeks; mobile-home placement permits (common for farmworker-housing additions) run faster (1-3 weeks).

Florida state — ADU law and programs

State ADU law

Florida does NOT currently have a statewide ADU preemption law in effect. Florida Statutes § 163.31771 (enacted 2004, last amended 2020) is permissive — it authorizes local governments to adopt ADU ordinances but does not require them to. ADU rules are therefore set municipality-by-municipality: Miami-Dade, Orlando, St. Petersburg, Tampa, and a growing set of Florida cities have their own ordinances; many smaller counties and cities still prohibit or restrict ADUs by default. A preemption bill (SB 48 / HB 313) is pending in the 2026 legislative session and is likely to pass given that its 2025 predecessor cleared the Senate 37-0 and House 97-10 before dying on a procedural amendment dispute.

  • Florida Statutes § 163.31771 — Accessory dwelling units — Permissive (not mandatory) statute. Defines an ADU as 'an ancillary or secondary living unit, that has a separate kitchen, bathroom, and sleeping area, existing either within the same structure, or on the same lot, as the primary dwelling unit.' Authorizes — but does not require — local governments to adopt ordinances allowing ADUs in single-family residential zones. Contains no size caps, no owner-occupancy rules, no HOA preemption. All substantive rulemaking is local.

State financing programs

Florida Housing Finance Corporation (FHFC) does not operate an ADU-specific state loan or grant program. FHFC's primary affordable-housing lever at the ADU tier is the State Housing Initiatives Partnership (SHIP), which distributes state documentary-stamp-tax revenue to all 67 counties and 52 entitlement cities for locally-administered housing programs — some of which may fund ADU construction at the local level (notably Orange County's Affordable ADU Loan Program, run through the Orange County Housing Finance Trust). FHFC's FL Assist down-payment programs and HFA Preferred / HFA Advantage conventional loans apply to ADU-eligible primary residences but do not single out ADUs. Proposed CS/SB 1440 would create a state property-tax exemption of up to 100% of assessed value for an ADU rented at affordable rates.

State housing programs

Florida does not currently operate a statewide pre-approved ADU plan catalog (unlike California or Washington). State-level ADU implementation is driven by (a) the permissive § 163.31771 which lets willing jurisdictions adopt ordinances, (b) SHIP pass-through funding to local ADU programs (Orange County's Affordable ADU Loan Program is the model), and (c) the affordable-housing property-tax exemption under the Live Local Act (SB 102 / SB 328). The Department of Economic Opportunity (DEO) — now reorganized as the Department of Commerce — provides technical assistance to local governments but no statewide ADU-specific mandate or program. Major counties (Miami-Dade, Orange, Pasco, Hillsborough, Pinellas, Broward) have published their own ADU ordinances and guidance documents.

Federal (United States) — ADU-relevant rules and programs

Federal ADU law

The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.

Federal financing programs

Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.

Federal tax credits

There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.

Federal housing programs

HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.

ZIP Code

  • 33440

Post Office

  • 400 S Berner Rd, 33440