Orlando has relatively reasonable ADU regulations compared to other Florida cities, allowing detached units in residential zones. The city's rapid growth has prompted more liberal ADU policies to address housing demand.
Zoning & Size Requirements
| Allowed Zones | Residential single-family zones |
| Max Size (Detached) | 900 sq ft |
| Max Size (Attached) | 700 sq ft |
| Max Size (JADU) | 500 sq ft |
| Max Height | 35 feet |
| Max Units | 1 ADU per lot |
Setback Requirements
| Rear Setback | 15 feet |
| Side Setback | 5 feet |
| Front Setback | 20 feet |
| Parking Required | 1 space for ADU |
| Owner Occupancy | Not required |
| Min Lot Size | 6,000 sq ft |
Permit Process & Fees
| Approval Process | Building permit + flood review |
| Review Timeline | 60-85 days |
| Permit Fees | $2,800-$4,500 |
| Impact Fees | $1,100-$1,900 |
| Plan Check | 2-3 weeks |
| Pre-Approved Plans | Available for select ADU types |
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Construction Costs
| Average Build Cost | $130,000-$260,000 |
| Cost per Sq Ft | $145-$290 |
| Garage Conversion | $60,000-$145,000 |
| Prefab ADU (Installed) | $90,000-$210,000 (installed) |
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| Avg Rent (1 Bedroom) | $1,200-$1,750/mo |
| Avg Rent (2 Bedroom) | $1,550-$2,300/mo |
| Short-Term Rental | Limited in some zones |
| Est. Annual ROI | 7-9% annual return |
Explore Prefab ADU Options
Prefab ADUs can save 20-40% vs. traditional construction and cut build time in half. Compare top prefab manufacturers.
Compare Prefab ADUs →Recent Law Changes
What's Changed Recently
- 2024: Increased max detached ADU size from 800 to 900 sq ft
- 2023: Introduced JADU allowance in select neighborhoods
- 2024: Streamlined flood certification process
- 2023: Reduced impact fees for ADUs in growth corridors
Tips for Building an ADU in Orlando
- Orlando's growth means strong rental demand; good investment potential
- Flood risk is lower than Miami/Tampa but still requires assessment
- Many neighborhoods allow JADUs; smaller entry point for some properties
- Tourism proximity increases short-term rental demand in certain areas
Frequently Asked Questions
Can I build an ADU in Orlando?
Yes. ADUs are allowed in Residential single-family zones in Orlando. The maximum size for a detached ADU is 900 sq ft. No owner-occupancy is required.
How much does an ADU cost in Orlando?
ADU construction in Orlando typically costs $130,000-$260,000. Garage conversions run $60,000-$145,000, and prefab ADUs cost $90,000-$210,000 (installed).
How much can I rent an ADU for in Orlando?
Average ADU rents in Orlando are $1,200-$1,750/mo for a 1-bedroom and $1,550-$2,300/mo for a 2-bedroom unit.
Do I need parking for an ADU in Orlando?
1 space for ADU. Check with Orlando planning department for the latest Florida ADU parking rules, as many states have relaxed requirements in recent years.
How long does it take to get an ADU permit in Orlando?
The permit review timeline in Orlando is 60-85 days. Fees range from $2,800-$4,500.
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