ADU rules in Bay Hill, FL — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Orange County allows accessory dwelling units on many single-family lots subject to zoning district, lot size, and owner-occupancy rules. Maximum ADU size is typically 800 square feet or 50% of primary dwelling.
The Orange County Zoning Code allows accessory dwelling units (sometimes called guest houses or secondary residences) in R-CE, R-1A, R-1AA, R-1AAA, and some R-1 districts as accessory to a primary single-family residence. Typical requirements: minimum lot size generally 1 acre in rural districts and 10,000-15,000 sq ft in suburban districts, ADU limited to 800 sq ft or 50% of primary dwelling (whichever is less), owner must occupy primary or ADU, one additional parking space required, and exterior must match primary. Setbacks follow the underlying district. Building permits are required through Orange County Building Safety Division, and impact fees (school, transportation) may apply. The 2023 Live Local Act creates additional ADU pathways in some contexts but Orange County has not yet adopted the optional provisions broadly.
Unpermitted ADU: Stop Work Order plus double permit fees. Unauthorized rental of ADU where owner-occupancy required: code enforcement up to $500/day. Health and safety hazards: order to vacate.
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Side-by-side rule comparisons with other cities in Orange County.
See how other cities in Orange County handle adu rules.
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