ADU Rules & Zoning in Fort Lauderdale, Florida (2026)
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Key Takeaways: Fort Lauderdale ADU Rules 2026
- ADU limited to 1 bedroom and 1 bathroom maximum — studio/efficiency also permitted
- Size capped at 600 sq ft OR 49% of primary dwelling gross floor area — whichever is smaller
- Annual Certificate of Use (COU) renewal required — cannot legally rent without a current COU each year
- Owner-occupancy required — must live in primary home or ADU
- Short-term rentals under 30 days prohibited — minimum 30-day occupancy
- 3 total on-site parking spaces required: 2 for primary home + 1 for ADU
- High Velocity Hurricane Zone (170 mph) adds 20–30% to typical construction costs
Fort Lauderdale 2026 ADU Requirements Snapshot
Fort Lauderdale ADUs governed by Ordinance Sec. 47-19.2. Max 600 sq ft or 49% of primary dwelling (whichever less). Reduced 3 ft setbacks on small lots. Rental requires annual Certificate of Use. Contact: (954) 828-6520 / BuildingServices@FortLauderdale.gov.
ADU Size Calculator (49% formula, 600 sq ft cap)
| Primary Home Size | Max ADU Size |
|---|---|
| 1,200 sq ft | 588 sq ft |
| 1,800 sq ft | 600 sq ft |
| 1,300 sq ft (cap triggers) | 600 sq ft (max) |
Whichever is smaller: 49% of primary OR 600 sq ft hard cap.
What this means for your lot
- Use the address checker first to verify parcel-specific zoning.
- Confirm setbacks and lot geometry before spending on plans.
- Check short-term rental rules carefully — they vary significantly by city.
Key gotchas
- Most restrictive ADU config in Florida — 1BR max, 600 sf cap, 49% dual cap
- Annual Certificate of Use renewal is mandatory — cannot legally rent without it each year
- HVHZ 170 mph wind zone dramatically increases construction costs
Building Limits
- Max Size:600 sq ft or 49% (lesser)
- Detached Allowed?Yes
- Build Cost Est.:$100,000–$250,000 (HVHZ 170 mph wind zone)
- Min Rental Period:30 days
Rental Rules
Owner-Occupancy Required: You must live in either the primary home or the ADU.
Short-Term Rentals Prohibited: Minimum 30-day stay required in Fort Lauderdale.
Estimated Monthly Income
$1,924–$2,836/month
Based on 2025–2026 Fort Lauderdale market data
Fort Lauderdale ADU Permit Cost Breakdown
| Cost Item | Amount / Notes |
|---|---|
| Total Estimated Cost | $2,500–$8,000 |
| Certificate of Use | $250 initial + annual renewal fee (contact city for current amount) |
| Building Permit Fee | Based on construction valuation |
| Plan Review | Included in permit fee |
| Impact Fees | Broward County impact fees apply — contact (954) 357-6400 for estimate |
| HVHZ Construction Note | High Velocity Hurricane Zone (170 mph) construction adds 20–30% to base costs — impact-rated doors, windows, roof systems required |
Key ADU Restrictions in Fort Lauderdale
- ADU limited to 1 bedroom and 1 bathroom (or studio/efficiency) only
- Size capped at 600 sq ft or 49% of primary home — whichever is less
- Annual Certificate of Use required — every rented ADU must be inspected and renewed annually
Common Mistakes to Avoid in Fort Lauderdale
- Most restrictive ADU config in Florida — 1BR max, 600 sf cap, 49% dual cap
- Annual Certificate of Use renewal is mandatory — cannot legally rent without it each year
- HVHZ 170 mph wind zone dramatically increases construction costs
Eligible Zones in Fort Lauderdale
Fort Lauderdale ADU — Frequently Asked Questions
Can I build an ADU in Fort Lauderdale?
Yes. Fort Lauderdale permits ADUs in single-family residential districts under Ordinance Sec. 47-19.2. ADUs are limited to studio or 1-bedroom, 1-bathroom configurations. Confirm your zoning district using the Fort Lauderdale Interactive GIS map (fortlauderdale.gov) before starting plans.
What is the maximum ADU size in Fort Lauderdale?
600 sq ft OR 49% of the primary dwelling's gross floor area — whichever is smaller. On a 1,000 sq ft home, your cap is 490 sq ft (49%). On a 1,500 sq ft or larger home, your cap is 600 sq ft (the hard ceiling). The unit is also limited to 1 bedroom and 1 bathroom maximum.
Do I need to live on the property to rent an ADU in Fort Lauderdale?
Yes. Owner-occupancy is required — you must live in either the primary home or the ADU. Long-term rentals (30+ days) require obtaining and maintaining an annual Certificate of Use from the City, renewed every year.
Can I use my Fort Lauderdale ADU as an Airbnb?
No. Short-term rentals under 30 days are prohibited. The minimum rental period is 30 days. You must also obtain an annual Certificate of Use (COU) renewal to legally rent your ADU each year.
How long does the Fort Lauderdale ADU permit process take?
6–12 months: 1–2 weeks zoning confirmation, 4–12 weeks for HVHZ-compliant plan preparation, 4–8 weeks for permit review, plus inspections and CO. The annual COU renewal is an ongoing requirement. Contact Development Services at (954) 828-6520 or BuildingServices@FortLauderdale.gov to start.
Fort Lauderdale Planning Department
Fort Lauderdale Development Services
Nearby Cities — ADU Rules
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This page provides general information based on current ordinances and publicly available data as of March 2026. Zoning rules change — verify all requirements with your local planning department before making financial commitments.