Setbacks & Height Limits in Jacksonville

This guide explains the basic setback and height rules that apply to residential construction in Jacksonville. These numbers depend on your exact zoning district, overlay zones, and lot geometry, so always confirm with the City of Jacksonville Planning & Development Department before finalizing plans.

What Are Setbacks?

A setback is the minimum required distance between a building and a lot line. Setbacks are measured from the property line to the nearest point of the building (typically the wall, but eaves, bay windows, and chimneys can have their own rules).

Jacksonville's zoning code (Chapter 656 of the Code of Ordinances) specifies front, side, and rear setbacks separately for each zoning district. Corner lots have two "front" setbacks (one per street frontage) and typically one interior side and one rear.

Typical Residential Setbacks

For the most common single-family residential zones in Jacksonville — RLD-60 (60 ft minimum lot width) and RLD-70 (70 ft minimum lot width) — the dimensional standards in Chapter 656, §656.305 are:

These values apply to RLD-40, RLD-50, RLD-60, and RLD-70 single-family districts (the number is the minimum lot width in feet). Higher-density residential zones (RMD-A, RMD-B, RMD-C, RMD-D), mixed-use zones (CCG), and commercial zones all have separate setback schedules in Chapter 656.

Height Limits

Maximum building height in Jacksonville's RLD residential districts is generally 35 ft, measured from average grade to the highest point of the roof (or to a specified reference plane like the midpoint of a pitched roof). Higher-density residential and commercial zones allow more height — verify the specific limit for your zone in Chapter 656.

Height rules can be modified in:

• Airport overlay zones — areas around Jacksonville International Airport, NAS Jacksonville, and Cecil Airport have FAA-driven height limits
• Coastal high-hazard areas — additional height and elevation rules apply along the St. Johns River, Intracoastal Waterway, and Atlantic coast
• Historic districts — Springfield, Riverside-Avondale, and other historic overlays may impose contextual height limits
• PUDs (Planned Unit Developments) — site-specific height limits are set in the PUD ordinance

Lot Coverage

Beyond setbacks and height, lot coverage shapes how much footprint your building can occupy. RLD residential zones in Jacksonville typically allow up to 50% lot coverage under §656.305 — meaning the building footprint cannot exceed half of the lot area. Pools, driveways, and open decks are typically excluded from this calculation, but verify with planning staff for your zone.

Jacksonville does not generally use Floor Area Ratio (FAR) for single-family RLD districts; instead, lot coverage and setbacks are the primary bulk controls. FAR may apply in higher-density and mixed-use zones.

Common Exceptions and Encroachments

Most zoning codes allow certain features to project into required setbacks. Typical allowances under Chapter 656 include:

• Eaves and gutters (usually up to 2 ft)
• Chimneys (up to 2 ft)
• Uncovered porches, stoops, and steps
• Air conditioning condensers and pool equipment (subject to noise rules)
• Bay windows (limited projection)

Fences, retaining walls, and accessory structures often have separate rules — check the zoning code section on accessory structures and fences.

ADU Setback Notes

If your project is an Accessory Dwelling Unit (ADU), Jacksonville's "Keeping Our Families Together Act" (Ordinance 2022-0448-E, November 2022) legalized ADUs in most single-family residential zones. ADUs must be located behind the primary home, cannot exceed the height of the primary residence, and are capped at 750 sq ft or 25% of the primary home (whichever is smaller). The underlying zoning setbacks still apply. ADUs are not permitted in the Beaches communities, Baldwin, or HOA/deed-restricted communities that prohibit them. See the ADU rules page for details.

How to Look Up Your Specific Requirements

1. Find your zoning district — use the JaxGIS Duval Property Map and turn on the Zoning layer
2. Read the district regulations — Chapter 656 of the Code of Ordinances on Municode lists setbacks, height, lot coverage, and use rules for each district
3. Check for overlays — historic districts, airport zones, and coastal overlays can modify the base rules
4. Call the Zoning Section — Jacksonville's Zoning Section can be reached at (904) 255-8300 for free zoning verification

Variances

If your project cannot meet the strict letter of the zoning code, you may apply for a variance — a formal request to deviate from the rules based on hardship specific to your lot. Variances in Jacksonville are reviewed by the Planning Commission and require public hearings. See the Variance Application Guide for the general process.

Official Sources

See the sources linked in the frontmatter for Chapter 656 of the Jacksonville Code of Ordinances and the City of Jacksonville Planning & Development Department. This guide is informational and is not a substitute for direct confirmation from planning staff.

Disclaimer: Always verify current setback, height, and lot coverage requirements with the Jacksonville Planning & Development Department at (904) 255-7800 or the Zoning Section at (904) 255-8300 before relying on them for design or permitting decisions.