Citrus County
ADU Pass helps homeowners in Citrus County, Florida navigate the permit paperwork for building an accessory dwelling unit. We cover 7 cities and 15 ZIP codes in this county.
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County ADU details
County ADU ordinance
Citrus County regulates accessory dwelling units on parcels in the unincorporated county through the Citrus County Land Development Code (LDC), which addresses 'accessory living units,' 'guest houses,' 'mother-in-law apartments,' and 'caretaker quarters.' Florida has no mandatory statewide ADU preemption — § 163.31771 Fla. Stat. is permissive only. As of 2026-04-20, Citrus County permits one accessory dwelling per single-family parcel in residential zoning districts (RUR, CLR, LDR, MDR) subject to size caps (typically 50% of primary or 1,000 sqft, whichever is less; larger allowances on agricultural / rural residential parcels), setback conformance, height limits, and utility-sharing requirements. Citrus County is a rural / retirement-heavy Gulf Coast county with a large retiree population (median age ~55, one of the highest in Florida), centered on Inverness (county seat, inland on Lake Tsala Apopka), Crystal River (coastal, home to the Crystal River Preserve State Park and the Nature Coast manatee-viewing industry), Homosassa and Homosassa Springs (unincorporated Gulf coastal), Hernando (unincorporated north-central), Lecanto (unincorporated, growing), Beverly Hills (unincorporated 55+ retirement community), and Citrus Springs (large unincorporated pre-platted subdivision). The coastal Nature Coast segments — Ozello, Homosassa, Crystal River, Yankeetown-adjacent — are extremely surge-exposed; Hurricane Idalia (Aug 2023) delivered substantial coastal flooding and Hurricane Helene (Sept 2024) delivered even more severe storm surge, devastating Citrus County's coastal unincorporated areas. Post-Helene rebuild ordinances are the most recent material amendments to the LDC's accessory-structure provisions. Pending 2026 state legislation (SB 48 / HB 313) would cap local size restrictions at 1,000 sqft minimum if enacted — Citrus County is already at or near the proposed state floor.
Code citations:
- Citrus County Land Development Code — accessory-use and residential-district provisions
- Citrus County Comprehensive Plan — Future Land Use and Coastal Management Elements
- Citrus County Board of County Commissioners — agenda archive
State-floor overlay: Florida has no mandatory statewide ADU preemption. § 163.31771 Fla. Stat. is permissive only. Pending 2026-session SB 48 / HB 313 would preempt sub-1,000-sqft caps and single-family-zone ADU bans effective December 1, 2026 if enacted; 2025 predecessor cleared both chambers before dying on procedural dispute. Citrus County's 1,000-sqft cap largely conforms to the proposed state floor. The Live Local Act (SB 102 / SB 328) applies to commercial / industrial / mixed-use. Florida HOA and similar statutes do NOT preempt association-level restrictions — Citrus County has large HOA-governed communities (Pine Ridge, Terra Vista, Citrus Hills, Sugarmill Woods, Black Diamond, Beverly Hills) where HOA covenants are frequently the binding constraint regardless of county zoning.
Adopting body: Citrus County Board of County Commissioners
County permitting (unincorporated parcels)
Citrus County Department of Development Services (DDS) is the combined planning / zoning / building / floodplain permit authority for parcels in the unincorporated county. Unincorporated Citrus County covers approximately 570 square miles (about 99% of the county's 773 sqmi total land area including extensive water) with only two small incorporated municipalities: Inverness (county seat) and Crystal River (coastal). Almost all of the county's population lives in unincorporated areas. Principal unincorporated communities include Citrus Springs (large pre-platted subdivision, ~10,000 residents), Beverly Hills (55+ community), Lecanto, Homosassa, Homosassa Springs, Hernando, Floral City, Ozello (extreme-coastal), Red Level, and Pine Ridge. Citrus County is a CRS Class 6 community. All of the county is in the Wind Borne Debris Region (WBDR) with 150-mph-ultimate wind-load design (inland) or 160-mph-ultimate (coastal / near-coastal). Hurricane Helene (Sept 2024) caused catastrophic surge damage to Ozello, Crystal River, Homosassa, and unincorporated Gulf frontage — permit volume through 2025 has been dominated by substantial-damage determinations and rebuild-to-elevated-standard requirements.
Process overview: Accessory dwelling / accessory living unit approval in unincorporated Citrus County is a combined zoning / building / floodplain review. Typical sequence: (a) applicant confirms parcel zoning, Future Land Use, CHHA status, and FIRM flood-zone via Citrus County Property Appraiser and DDS GIS; (b) applicant submits Building Permit through EnerGov with site plan, floor plans, elevations, Florida Building Code compliance (150-160 mph ultimate per location), impact-rated glazing or shutter spec, flood-zone compliance (Elevation Certificate for SFHA parcels), Florida Department of Health septic approval (virtually all unincorporated Citrus parcels on septic), and private-well confirmation; (c) DDS zoning review; (d) building plan review; (e) Citrus County Fire Rescue reviews for access/water supply; (f) floodplain review — post-Helene FEMA FIRM revisions drove some Crystal River / Homosassa / Ozello BFEs upward by 2-4 feet; (g) permit issuance, construction, inspections, CO. Citrus County targets 15-25 business days for residential permit review; post-Helene actuals commonly run 30-50 business days on coastal and near-coastal parcels.
Impact fees: Citrus County impact fees are modest compared to coastal South Florida. The county charges transportation (roads), parks, and library impact fees on new dwelling units; school impact fees are charged by the Citrus County School District. For a typical accessory dwelling in unincorporated Citrus County, total impact fees run approximately $3,500-$6,500 (as of 2026-04-20). Virtually all unincorporated Citrus parcels rely on on-site septic (Florida DOH permitting) and private wells or small community water systems — no county water/sewer connection fee applies in most cases. Citrus County has indexed its impact fees modestly over the 2020s; no ADU-specific exemption exists. (schedule)
County assessor
The Citrus County Property Appraiser (CCPA) maintains parcel-level assessment records for all real property in Citrus County including parcels within Inverness and Crystal River. Florida's Save Our Homes (§ 193.155 Fla. Stat.) caps homesteaded residential parcels at 3% / CPI-lesser annual increase; non-homestead caps at 10% (§ 193.1554/1555). An ADU is treated as new construction: added to just value at the completion-year fair market value without resetting the primary dwelling's Save Our Homes base. Citrus County's retiree-heavy demographic means many parcels are held with substantial Save Our Homes differentials — long-held homesteaded parcels assessed at a fraction of market value. The CCPA administers Agricultural Classification (Greenbelt, § 193.461) on qualifying rural parcels. Post-Hurricane Helene (Sept 2024), the CCPA issued extensive § 197.319 prorated tax refunds on destroyed residences across coastal Citrus, and tax-roll adjustments continued through the 2025 roll.
Assessment policy: New-construction additions for an accessory dwelling occur at the annual roll-over following Certificate of Occupancy. CCPA field-inspection cycle typically catches the addition within 6-12 months of CO. For a typical 600-900 sqft accessory dwelling in unincorporated Citrus County, observed just-value additions range from $60,000 to $120,000 (reflecting lower construction-cost environment than coastal South Florida counties), yielding a supplemental annual property-tax increase of approximately $1,000-$2,100 at the aggregate millage rate of roughly 1.6-1.8%. Short-term rental of an accessory dwelling in Crystal River / Homosassa / Ozello (the Nature Coast tourism corridor) triggers Tourist Development Tax.
County overlays (7)
Citrus County administers or co-administers several overlay regimes that materially affect ADU siting on unincorporated parcels: (1) FEMA Special Flood Hazard Areas (SFHA) covering extensive Nature Coast frontage (Ozello, Crystal River unincorporated fringe, Homosassa, Homosassa Springs), inland riverine floodplains along the Withlacoochee River, Tsala Apopka Lake chain, Homosassa River, and Crystal River; Citrus is a CRS Class 6 community; post-Hurricane Helene (Sept 2024), FEMA issued substantially revised FIRM panels with BFEs increased by 2-4 feet in hardest-hit coastal segments; (2) Florida Building Code Wind Borne Debris Region — all of Citrus County at 150-160 mph ultimate design; (3) Coastal High Hazard Area (CHHA) under the Citrus Comp Plan Coastal Management Element, with post-Helene intensification-restraint policies materially tightened; (4) Florida DEP Coastal Construction Control Line (CCCL) jurisdiction along Gulf-facing segments; (5) Florida Aquatic Preserves — Crystal River Aquatic Preserve and St. Martins Aquatic Preserve covering extensive Nature Coast waters; (6) State Park / wildlife management overlays — Crystal River Preserve State Park, Homosassa Springs Wildlife State Park, Chassahowitzka National Wildlife Refuge (federal); (7) Florida Forest Service Firewise zones in eastern Citrus (Withlacoochee State Forest, Tsala Apopka interior); and (8) Southwest Florida Water Management District (SWFWMD) consumptive-use and stormwater permitting. The manatee-habitat protections under federal Marine Mammal Protection Act and Florida Manatee Sanctuary Act (§ 370.12 Fla. Stat.) affect waterfront construction near Three Sisters Springs and Kings Bay.
- FEMA Special Flood Hazard Areas (SFHA) — National Flood Insurance Program (Citrus CRS Class 6, post-Helene FIRM) — Citrus County administers FEMA NFIP floodplain regulations. SFHA extents include the Gulf-facing coast from Yankeetown border south through Ozello, Crystal River, Homosassa, Homosassa Springs, and Chassahowitzka; inland along the Withlacoochee River corridor, Tsala Apopka Lake chain (Floral City, Inverness, Hernando surrounds), and the Crystal River / Homosassa / Chassahowitzka river systems. Citrus requires lowest-floor elevation to BFE + 1 ft county freeboard. Post-Helene FEMA FIRM revisions effective in 2025 raised BFEs by 2-4 feet in the hardest-hit Gulf coastal segments; owners proposing accessory dwellings on these parcels must confirm current effective BFE and design accordingly. Citrus is a CRS Class 6 community giving unincorporated NFIP policyholders a 20% premium discount.
- Florida Building Code Wind Borne Debris Region (WBDR) — All of Citrus County is in the WBDR. Ultimate design wind speeds: 150 mph inland (Lecanto, Inverness, Citrus Springs) and 160 mph coastal (Ozello, Crystal River fringe, Homosassa, Homosassa Springs). Impact-rated glazing or shutters required on all openings. Garage doors must be impact-rated. Post-Helene insurance scrutiny has tightened dramatically; Citizens Property Insurance is effectively the only option on many coastal Nature Coast parcels.
- Coastal High Hazard Area (CHHA) — Citrus Comp Plan intensification limits (post-Helene tightened) — The CHHA covers the Category 1 surge inundation zone plus adjacent high-velocity wave-action areas across the entire Nature Coast unincorporated frontage. Post-Hurricane Helene, Citrus County tightened CHHA intensification policies — an ADU on a parcel already built to the underlying zoning density in the CHHA faces substantially higher denial risk than in inland districts. Owners in Ozello, Crystal River unincorporated fringe, Homosassa, and Homosassa Springs should obtain a pre-application CHHA-consistency opinion before committing to design.
- Florida Coastal Construction Control Line (CCCL) — FDEP jurisdiction — CCCL runs along Citrus's Gulf-facing shorelines. Seaward of CCCL, any structure requires FDEP permit in addition to county building approval. CCCL permit processing adds 60-120 days to overall timeline. Most Nature Coast Gulf-front parcels are CCCL-affected.
- Florida Aquatic Preserves — Crystal River, St. Martins — Crystal River Aquatic Preserve covers Kings Bay, Three Sisters Springs, and the adjacent marine environment. St. Martins Aquatic Preserve covers Homosassa and Chassahowitzka waters. Waterfront accessory structures require additional FDEP / SWFWMD permitting for any in-water component. Manatee-habitat protections under federal Marine Mammal Protection Act and Florida Manatee Sanctuary Act (§ 370.12) impose construction-window restrictions (Nov 15 - Mar 31 manatee-presence season) on waterfront work in Kings Bay and Three Sisters Springs.
- Withlacoochee State Forest / Florida Forest Service Firewise zones — The Withlacoochee State Forest occupies portions of eastern Citrus County. Firewise zones along forest interface in eastern Citrus (Floral City, Hernando, Inverness eastern fringe) drive insurance-focused rather than code-focused defensible-space expectations. Florida Building Code lacks a California-Chapter-7A WUI equivalent; insurers are the practical driver of forest-fringe construction practices.
- Southwest Florida Water Management District (SWFWMD) consumptive-use and stormwater — SWFWMD issues consumptive-use permits for private wells (residential exemptions apply below ~6,000 gpd), reviews stormwater for new construction, and administers environmental resource permitting for work affecting surface waters or wetlands. Accessory dwellings on parcels relying on private wells operate under the residential consumptive-use exemption; accessory dwellings adding more than a trivial footprint may require SWFWMD ERP coverage under the self-certification Minor System pathway.
Known county issues (4)
- other — Hurricane Helene delivered 5-10 foot storm surge across Ozello, Crystal River, Homosassa, and Homosassa Springs. Hundreds of unincorporated Nature Coast residences were substantially damaged under the FEMA 50%-rule, meaning rebuild must conform to current FBC and elevated BFE standards. Through 2025-2026, the Citrus County DDS permit pipeline has been dominated by rebuilds rather than new construction. Owners proposing a new accessory dwelling on a coastal parcel should expect elevated scrutiny, longer review cycles, and elevation-construction cost premiums that did not exist pre-Helene. Citizens Property Insurance premiums for coastal accessory dwellings commonly run $4,000-$8,000/year for a 600-900 sqft structure.
- other — Florida HOA statute (Ch. 720) does NOT preempt association-level restrictions. Citrus County's large 55+ and retirement-oriented HOA communities — Pine Ridge, Terra Vista, Citrus Hills (Black Diamond Ranch), Sugarmill Woods, Beverly Hills planned units — have HOA declarations that commonly bar guest houses, accessory dwellings, or second-occupancy structures regardless of county zoning. Owners must review the recorded HOA declaration BEFORE applying for a county permit.
- policy-review — SB 48 / HB 313 would preempt sub-1,000-sqft caps and single-family-zone ADU bans effective December 1, 2026 if enacted. Citrus County's 1,000-sqft cap largely conforms; enactment would not force material ordinance rewrites but would preempt any utility-sharing or owner-occupancy conditions the LDC currently imposes.
- other — Virtually all unincorporated Citrus parcels rely on on-site septic systems. Florida DOH septic permitting requires minimum parcel size and separation distances that often foreclose a second septic system on the same parcel. On karst / Nature-Coast soils with shallow groundwater, performance-based alternative treatment systems may be required at premium cost ($15,000-$40,000). Owners should obtain a DOH septic-feasibility opinion before committing to ADU design.
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.