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Building Code Quick Reference

Jacksonville Building Codes

Duval County · Jacksonville Ordinance Code, Zoning Code (Part 6, Chapter 656)

Everything you need to know about building in Jacksonville, California — setback distances, height limits, lot coverage, FAR, parking requirements, and the issues that Jacksonville plan checkers flag most often. Use this as a quick reference before designing or submitting plans.

Jacksonville at a Glance

35'
Max Height
20'
Front Setback
50%
Max Coverage
2
Parking/Unit

Values shown for the most common residential zone. See full zone table below for all zones.

Jacksonville Zoning Requirements

Each zone in Jacksonville has different development standards. The table below shows setbacks (the minimum distance your building must be from each property line), maximum height, number of stories, lot coverage percentage, and Floor Area Ratio (FAR) for each residential zone.

Zone Front Side Rear Height Stories Coverage FAR
RLD-60 — Residential Low Density - 60 20' 5' 20' 35' 2 50%
Most common SF zone in older neighborhoods
RLD-70 — Residential Low Density - 70 25' 7.5' 20' 35' 2 45%
Common suburban SF zone
RLD-90 — Residential Low Density - 90 25' 7.5' 25' 35' 2 40%
Larger lot suburban areas

How to Read This Table

  • Front setback — minimum distance from the street-facing property line to your building. Typically the largest setback. Eaves and architectural features may project 2–3' into this area.
  • Side setback — minimum distance from each side property line. May increase for two-story construction in some zones. Corner lots have a "street side" setback that's usually larger.
  • Rear setback — minimum distance from the back property line. ADUs only need 4' under California state law, regardless of what this table shows for primary structures.
  • Height — maximum building height measured from grade. Jacksonville may measure from average grade, lowest adjacent grade, or midpoint of the roof — check your specific zone for the measurement method.
  • Coverage — the maximum percentage of your lot that can be covered by buildings. Includes the footprint of all structures — main house, garage, ADU, and covered patios.
  • FAR — Floor Area Ratio. Total floor area of all buildings divided by lot area. A FAR of 0.45 on a 5,000 sqft lot means maximum 2,250 sqft of building. Use our FAR Calculator to check yours.

Jacksonville Parking Requirements

Parking is one of the most common plan check flags. Jacksonville requires the following parking ratios for residential projects — make sure your site plan accounts for these before submitting.

2
Spaces per Unit

Covered/enclosed required

1
ADU Spaces

Waived near transit

8.5'×18'
Min Stall Size

Standard residential

Florida Building Code. Live Local Act (SB 102) preempts local ADU bans.

→ Use our Parking Calculator to calculate your exact requirement.

General Building Requirements

Beyond zoning, Jacksonville has general building requirements that apply to all residential construction. These are commonly referenced during plan check.

energy code Florida Building Code Energy Conservation
fire sprinklers Required for new construction per FBC
flood zone FEMA flood zone compliance required in many areas

Common Jacksonville Plan Check Flags

These are the issues that Jacksonville plan reviewers flag most frequently on residential submissions. Addressing these before you submit can save one or more correction cycles (each adding 2–4 weeks to your timeline).

01 Flood zone compliance (FEMA)
02 Hurricane wind speed requirements
03 Live Local Act ADU compliance
04 Impact fees
05 Stormwater management

Frequently Asked Questions

How do I find my zone in Jacksonville? +

Check Jacksonville's planning department website for their zoning map, or search your address on our parcel search tool. Your zone code (R1, R2, etc.) determines which row in the table above applies to your property. You can also call Jacksonville's planning counter for a quick zoning verification.

How long does plan check take in Jacksonville? +

Initial plan review in Jacksonville typically takes 4–8 weeks. If corrections are required (which is common), each resubmission adds another 2–4 weeks. Running a pre-submission plan check can eliminate the most common correction items and save one or more review cycles.

Can I build an ADU in Jacksonville? +

Yes. Under California state law, Jacksonville must approve ADUs that meet state standards — no discretionary review required. Detached ADUs can be up to 1,200 sqft with only 4' rear and side setbacks. Use our Jacksonville ADU Eligibility Checker to see what you can build on your lot.

What are the most common reasons plans get rejected in Jacksonville? +

The top reasons are setback violations (measuring from the wrong reference point), height calculation errors (using the wrong grade measurement method), lot coverage exceeding the zone limit, insufficient parking, and missing energy code (Title 24) compliance. See the "Common Plan Check Flags" section above for Jacksonville-specific issues.

Do these codes apply to all projects in Jacksonville? +

The zoning standards above apply to standard residential projects. Specific overlays (historic districts, hillside areas, coastal zones) may have additional restrictions. Commercial and mixed-use zones have different standards. Always verify your specific zone and any applicable overlays with Jacksonville's planning department.

Check your Jacksonville project before you submit

Enter your project dimensions and we'll compare them against Jacksonville's building codes. Catch setback violations, height issues, and parking shortfalls before they become correction letters.

Start Jacksonville Plan Check →