Osceola County ADU Rules (2026)
Osceola County, Florida ADU rules, Tourism Corridor overlay considerations, and permit specifics.
Osceola County ADU Rules (2026) — quick facts
- Maximum ADU size
- 900 sq ft in rural residential; 750 sq ft in suburban
- Minimum lot size
- 10,000 sq ft for detached in most R zones
- Short-term rental allowed?
- Yes
- Owner-occupancy required?
- Yes
- Current ordinance status
- Existing LDC governs; Tourism Corridor Overlay applies
- Typical permit timeline
- 12–18 weeks
Detailed rules
Size and lot requirements
- Max ADU size: 900 sq ft in rural residential; 750 sq ft in suburban
- Min lot size: 10,000 sq ft for detached in most R zones
Setbacks
Rear: 10 ft; Side: 10 ft (interior), 15 ft (street side)
Parking
1 additional space required
Permit process
- Permit office
- Osceola County Community Development
- Phone
- (407) 742-0200
- Online portal
- https://www.osceola.org/agencies-departments/community-development/
- Typical timeline
- 12–18 weeks
- Typical fees
- $2,500–$4,500 total; higher near Tourism Corridor
Cities in Osceola County ADU Rules (2026)
Incorporated cities may have rules that differ from the county. Click a linked city for its specific ordinance.
- Kissimmee
- St. Cloud
- Celebration — Celebration is unincorporated but governed by HOA covenants — ADUs are generally prohibited.
- Poinciana — Straddles Osceola and Polk counties; confirm parcel jurisdiction.
Osceola County is Central Florida’s most complicated ADU jurisdiction because of the Tourism Corridor Overlay. Parcels inside the overlay (a band of land along US-192 and around the ChampionsGate / Reunion / Celebration area) are governed by different rules than the rest of the county — short-term rental permissions, higher density allowances, and distinct fee schedules.
For homeowners in the non-corridor areas (most of St. Cloud, most of Poinciana, the rural east of the county), the ADU rules are relatively standard. For homeowners inside the corridor, every ADU decision interacts with STR economics in ways that deserve legal review before breaking ground.
What the failed SB 48 means for Osceola
Florida’s 2026 ADU preemption bill (SB 48) did not become law. Osceola’s existing Land Development Code — including the Tourism Corridor Overlay and its STR provisions — therefore remains the governing document in full. If you are purchasing a parcel in the corridor specifically for STR income, the relevant document is the Osceola County LDC’s Tourism Corridor section. No state preemption is coming that would change this.
Outside the corridor, Osceola’s existing ordinance permits detached ADUs in most residential zones, subject to size limits and owner-occupancy. There is no state-law-driven timeline to remove those requirements. For the full statewide picture see the Florida ADU law pillar; for the legislative record see the SB 48 post-mortem.