Kissimmee, FL Accessory Structures: ADU Rules (2026)
ADU rules in Kissimmee, FL, also called accessory dwelling unit regulations or granny flat ordinances, cover setbacks, owner-occupancy, parking, and permit requirements.
Key Facts
- Max ADUs per lot
- 1 (attached or detached)
- Living area
- 500-800 sq ft
- Occupancy rule
- Owner-occupied + homestead
- Detached ADU lot size
- 1.5x district minimum
Summary
Kissimmee allows one accessory dwelling unit per lot in most residential zoning districts, but the principal home must be owner-occupied with a homestead exemption, and the ADU is capped at 800 square feet.
A.Lot and yard standards.1.One ADU (attached or detached) may be developed per lot, provided the lot complies with the minimum lot size for the respective zoning district and the ADU meets all site standards of the applicable zoning district. A detached ADU requires a lot with 1½ times the minimum required lot size.B.Parking standards. An ADU shall require off-street parking as outlined in section 14-7-22 in addition to the parking required for the primary structure.C.Occupancy standards. The principal structure shall be owner-occupied and shall maintain a valid homestead exemption.D.Buildings.1.An ADU shall have a minimum living area of 500 square feet and a maximum living area of 800 square feet or 40 percent of the gross floor area of the principal structure/dwelling at time of application, whichever is less.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 5).
Full Breakdown
An ADU may be attached or detached, one per lot, provided the lot meets the district's minimum lot size: a detached ADU needs 1½ times that minimum. Living area must run 500 to 800 square feet, or up to 40 percent of the principal home's floor area, whichever is smaller. Off-street parking is required in addition to the primary home's spaces. The principal structure must be owner-occupied and carry a valid homestead exemption, and the ADU's main entrance can't face the front façade unless it shares the primary entryway. In the AC agricultural district, new ADUs are limited to conditional-use review tied to a single-family home.
Violations & Fines
An ADU built without following these standards is illegal; the code requires it be brought into compliance with the section or abated: there is no grandfathering for unauthorized units.
Frequently Asked Questions
Can I build a detached ADU on any residential lot in Kissimmee?
Do I have to live in the main house to have an ADU?
Sources & Official References
Other rules in Kissimmee
How Kissimmee compares: Easiest Cities to Build an ADU·Florida rules heatmap·Compare Kissimmee to another location·View the Florida accessory structures overview
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