Zoning & Size Limits
| Requirement | Orlando, FL | Tampa, FL |
|---|
| Allowed Zones | Residential single-family zones | Designated ADU-eligible areas only (Seminole Heights, Tampa |
| Max Size (Detached) | 1,000 sq ft max, 500 sq ft min; must be smaller than the principal structure (varies by sector) | 950 sq ft (larger setbacks apply when the ADU exceeds 15% of lot size) |
| Max Size (Attached) | 1,000 sq ft max, 500 sq ft min; must be smaller than the principal structure | 950 sq ft - the 600 sq ft figure often cited is the Extended Family Residence cap, a separate family-only category |
| Max Height | Confirm with City of Orlando Planning — ADU must b | 22.5-35 ft (varies by overlay district; must not e |
| Parking Required | 1 space for ADU | 1 space per unit |
| Owner Occupancy | Not required by the City of Orlando — Orlando removed owner- | Required - the owner must reside on the property |
Setback Requirements
| Setback | Orlando, FL | Tampa, FL |
|---|
| Rear Setback | 15 feet | 3 ft (20 ft when the ADU exceeds 15% of lot size) |
| Side Setback | 5 feet | 3 ft interior (7 ft when the ADU exceeds 15% of lot size) |
| Front Setback | 20 feet | 60 ft from the street; at least 10 ft (RS-75/100/1 |
Permits & Timeline
| Detail | Orlando, FL | Tampa, FL |
|---|
| Permit Timeline | 60-85 days | 75-100 days |
| Permit Fees | $2,800-$4,500 | $3,500-$5,500 |
| Impact Fees | $1,100-$1,900 | $1,400-$2,200 |
| Pre-Approved Plans | Available for select ADU types | Not available |
Construction Costs
| Cost | Orlando, FL | Tampa, FL |
|---|
| Avg Build Cost | $130,000-$260,000 | $140,000-$280,000 |
| Cost Per Sq Ft | $145-$290 | $180-$350 |
| Garage Conversion | $60,000-$145,000 | $70,000-$160,000 |
| Prefab ADU | $90,000-$210,000 | $100,000-$230,000 |
Rental Income Potential
| Rental | Orlando, FL | Tampa, FL |
|---|
| 1BR Avg Rent | $1,200-$1,750/mo | $1,300-$1,850/mo |
| 2BR Avg Rent | $1,550-$2,300/mo | $1,650-$2,400/mo |
| Short-Term Rentals | Limited in some zones | Restricted in most zones |
| Est. ROI | 7-9% annual return | 6-8% annual return |
Which City Is Better for ADUs?
Orlando scores 6/10 while Tampa scores 3/10 on our ADU-friendliness index.
Orlando edges ahead overall. Both cities offer viable ADU development opportunities — the best choice depends on your specific property, budget, and goals.
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