ADU Rules & Zoning in Jacksonville, Florida (2026)
What ADU can you build in your Jacksonville backyard?
Instant zoning report — see exactly what your zoning allows: permitted ADU types, size limits, setbacks, and lot requirements for your specific property.
ADU Rules in Jacksonville, Florida
We've researched Jacksonville's ADU rules so you don't have to. Here's what matters most — the facts that determine whether your project is possible, and how much it will cost.
- Maximum ADU size is 1,000 sq ft OR 50% of the primary dwelling — whichever is smaller
- No owner-occupancy requirement — primary home and ADU can both be rented simultaneously
- No citywide short-term rental ban — ADU can be used for Airbnb with proper local licensing
- Minimum ADU size 400 sq ft (studio) or 550 sq ft (1-bedroom)
- Required setbacks: 5 ft side, 5 ft rear — ADU must not be placed in front yard
- Submit complete permit package via JaxReady portal — incomplete submissions are returned and restart the review clock
- Impact fees $2,000–$8,000+ (transportation, school, parks) assessed on top of permit fees
Last verified: 2026-03-05
Find out what ADU you can build in your backyard
— and get a free Jacksonville ADU guide for your area.
Free report · No commitment · 60 seconds
Backyard ADUs like this are being built across Jacksonville — here's how to do it right.
Here's exactly what Jacksonville zoning allows
Jacksonville (Duval County consolidated government) allows ADUs in most single-family residential districts. No owner-occupancy requirement. Max 1,000 sq ft or 50% of primary structure. Typical permit timeline 6–12 months. Verify parcel-specific zoning in Chapter 656 before committing to design.
Zoning allowance
Eligible residential zones include RSC-1, RSC-2, RLD-60, RLD-80, RLD-100, RMD-A, RMD-B, and other residential single-family districts. Verify parcel-specific zoning in Chapter 656 of the Jacksonville Code of Ordinances.
Size limits
Maximum 1,000 sq ft or 50% of the primary dwelling square footage, whichever is less. Minimum: 400 sq ft (studio) or 550 sq ft (1-bedroom).
Lot + setbacks
Rear setback: 5 ft. Side setback: 5 ft. Front setback: ADU must be behind the primary structure or meet the district's front setback. Lot coverage typically 35–45% depending on zoning district.
Height + coverage
Height limit: 25 ft / 2 stories, and must not exceed the height of the primary structure.
Parking
1 off-street parking space required per ADU. May be waived in transit-proximate contexts.
Rental / occupancy
Owner occupancy is not required. Both the primary unit and ADU may be rented to long-term tenants. STR operation may require a separate local license and additional zoning compliance.
Permit process
1. Verify parcel zoning at the Duval County GIS portal. 2. Optional pre-application meeting with Planning & Development. 3. Hire a Florida-licensed design professional (architect or engineer). 4. Submit plans through the city permitting portal. 5. Multi-discipline plan review (zoning, building code). 6. Address review comments and resubmit. 7. Pay fees and receive permit. 8. Build and pass all req
ADU Size Calculator (50% formula, 1,000 sq ft cap)
| Primary Home Size | Max ADU Size |
|---|---|
| 1,200 sq ft | 600 sq ft |
| 1,800 sq ft | 900 sq ft |
| 2,000 sq ft (cap triggers) | 1,000 sq ft (max) |
Whichever is smaller: 50% of primary OR 1,000 sq ft hard cap.
Find out what ADU you can build in your backyard
— and get a free Jacksonville ADU guide for your area.
Free report · No commitment · 60 seconds
Building limits and rental rules, side by side
These two sets of rules determine what you can build and what income you can expect. Read both before you commit to a design or a rental strategy.
Building Limits
- Max Size:1,000 sq ft or 50% (lesser)
- Setbacks:5ft side / 5ft rear
- Detached Allowed?Yes
- Max Height:25 ft
- Build Cost Est.:$90,000–$200,000
Rental Rules
No Owner-Occupancy Requirement: Both units can be rented to tenants simultaneously.
Short-Term Rentals: Not prohibited at the city level. State DBPR license required.
Estimated Monthly Income
$950–$1,400/month
Based on 2025–2026 Jacksonville market data
Here's exactly what you'll pay — and how to avoid the fees that catch most homeowners off guard
Most homeowners spend 3–4 weeks piecing this together on their own. We've mapped the full Jacksonville permit process step by step — so you know exactly what's coming, and what to prepare.
Step 1: Pre-Application Zoning Check
- Where:
- Jacksonville Planning & Development, 214 N. Hogan St., Jacksonville, FL 32202
- Contact:
- (904) 255-8300
- What to bring:
- Property address and parcel ID, preliminary site sketch, lot survey
- Timeline:
- No appointment fee — call ahead to confirm office hours
- Cost:
- No fee for initial inquiry
Step 2: Submit Permit Application
- Where:
- https://jaxtready.com
- Contact:
- (904) 255-8300
- What to bring:
- Architectural plans, site plan, boundary survey, energy compliance docs
- Timeline:
- Initial plan review: 25–35 business days
- Cost:
- $3,000–$10,000
Step 3: Plan Review & Revisions
- Where:
- Jacksonville Planning & Development
- Contact:
- (904) 255-8300
- What to bring:
- Responses to any correction letters; revised drawings if required
- Timeline:
- Initial plan review: 25–35 business days. Total typical timeline: 6–12 months (zoning verification through CO)
- Cost:
- No additional fee for standard resubmittal
Step 4: Construction & Inspections
- Where:
- Jacksonville Building Department
- Contact:
- (904) 255-8300
- What to bring:
- Approved permit set must be on-site at all times during construction
- Timeline:
- Schedule inspections as each phase of work is completed
- Cost:
- Included in permit fee
Full Jacksonville Permit Cost Breakdown
These are the fees you'll encounter, in the order you'll typically encounter them.
| Cost Item | Amount / Notes |
|---|---|
| Total Estimated Cost | $3,000–$10,000 |
| Building Permit Fee | Based on construction valuation — contact Jacksonville Planning for current schedule |
| Plan Review | Included in building permit fee |
| Impact Fees | $2,000–$8,000+ (transportation, school, parks) — assessed separately |
Incomplete application packages are returned without review — restarts the review clock
Find out what ADU you can build in your backyard
— and get a free Jacksonville ADU guide for your area.
Free report · No commitment · 60 seconds
Key ADU Restrictions in Jacksonville
These are the rules that most often catch homeowners by surprise. Read them carefully before engaging an architect.
- ADU max size 1,000 sq ft or 50% of primary dwelling square footage, whichever is less
- Minimum ADU size 400 sq ft (studio) or 550 sq ft (1-bedroom)
- ADU must be located behind the primary structure or meet standard front setback
Common Mistakes to Avoid in Jacksonville
- Incomplete application package — Jacksonville returns incomplete submissions, delaying process
- Setting ADU too close to property lines — 5 ft side and rear setback required
- Unpermitted existing work must be resolved before a new permit can be issued
Eligible Zones in Jacksonville
ADUs are permitted by-right in these zoning districts. Verify your parcel at the county GIS portal — most homeowners can confirm their zone in under 5 minutes.
Jacksonville neighborhoods where ADU permits are being filed — is your street next?
Jacksonville ADU — Frequently Asked Questions
These are the questions we hear most often from Jacksonville homeowners. If yours isn't here, our ADU Zoning Experts can answer it directly.
Can I build an ADU in Jacksonville?
Yes. Jacksonville permits ADUs by right in eligible residential zones including RSC-1, RSC-2, RLD-60, RLD-80, RLD-100, RMD-A, and RMD-B. Verify your parcel's zoning district using the Duval County GIS portal before starting plans.
What is the maximum ADU size in Jacksonville?
The smaller of 1,000 sq ft OR 50% of your primary dwelling's square footage. On a 2,000 sq ft primary home, your ADU cap is 1,000 sq ft. On a 1,600 sq ft home, it's 800 sq ft. Minimum ADU size is 400 sq ft (studio) or 550 sq ft (1-bedroom).
Do I need to live on the property to build or rent an ADU in Jacksonville?
No. Jacksonville does not require owner-occupancy. You can rent both the primary home and the ADU to long-term or short-term tenants simultaneously.
Can I use my Jacksonville ADU as an Airbnb?
There is no citywide prohibition on short-term rentals for Jacksonville ADUs. Short-term rental operation may require a separate local business license. Confirm current STR licensing requirements with Jacksonville Planning at (904) 255-8300.
How long does the Jacksonville ADU permit process take?
Plan on 6–12 months total: 3–4 weeks for zoning verification and pre-application, 4–10 weeks for design, 25–35 business days for initial plan review, plus inspections and CO. Submit a complete application package — Jacksonville returns incomplete submissions without review, restarting the clock.
Find out what ADU you can build in your backyard
— and get a free Jacksonville ADU guide for your area.
Free report · No commitment · 60 seconds
Find out what ADU you can build in your backyard
— and get a free Jacksonville ADU guide for your area.
Free report · No commitment · 60 seconds
Jacksonville Planning Department
We recommend calling Jacksonville Planning & Development at (904) 255-8300 before submitting anything — a 10-minute conversation can save weeks of back-and-forth on your permit application.
Jacksonville Planning & Development
Nearby Cities — ADU Rules
Get your free Jacksonville ADU Guide
Your personal zoning report + complete Jacksonville ADU requirements — delivered free to your email in 60 seconds.
No spam. Unsubscribe anytime. Used by 10,000+ Florida homeowners.
Looking for ADU Builders in Jacksonville?
How to choose a builder, what they won't tell you, and real cost breakdowns.
Related Guide: How to Build an ADU in Jacksonville
Four-jurisdiction breakdown, JaxEPICS permits, real costs ($165K–$310K), military housing demand, and ROI.
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.