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Building Code Quick Reference

Fremont Building Codes

Alameda County · Fremont Municipal Code (FMC), Title 18 — Zoning

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

Fremont at a Glance

30'
Max Height
20'
Front Setback
40%
Max Coverage
2
Parking/Unit

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

Fremont Zoning Requirements

Each zone in Fremont 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
R-1-6 — Single-Family Residential (6,000 sf) 20' 5' 20' 30' 2 40% 0.45
Most common SF zone. FAR includes garage. 30' height limit.
R-1-8 — Single-Family Residential (8,000 sf) 20' 5' 20' 30' 2 40% 0.4
Larger lot SF zone. Mission San Jose area and Niles.
R-2 — Multi-Family Residential 20' 5' 20' 30' 2 45%
Allows duplexes and multifamily.

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. In some states, ADUs have reduced setback requirements (e.g., 4' in California) regardless of what this table shows for primary structures.
  • Height — maximum building height measured from grade. Fremont 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.

Fremont Parking Requirements

Parking is one of the most common plan check flags. Fremont 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

0
ADU Spaces

Waived near transit

8.5'×18'
Min Stall Size

Standard residential

2 spaces per SFR (1 covered). ADU: 0 spaces per state law.

→ Use our Parking Calculator to calculate your exact requirement.

General Building Requirements

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

fire sprinklers Required for new residential construction per CBC
adu allowed true
seismic zone D — Hayward Fault Zone
solar required true
title24 true

Common Fremont Plan Check Flags

These are the issues that Fremont 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 Hayward Fault Zone — Alquist-Priolo setback requirements
02 FAR includes garage area — common calculation error
03 30' height limit — lower than many Bay Area cities
04 Hillside development overlay in eastern Fremont
05 Heritage tree preservation ordinance
06 Missing green building reach code compliance (Bay Area)

Frequently Asked Questions

How do I find my zone in Fremont? +

Check Fremont'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 Fremont's planning counter for a quick zoning verification.

How long does plan check take in Fremont? +

Initial plan review in Fremont 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 Fremont? +

ADU rules in Fremont depend on your state and local zoning code. State laws may guarantee ADU rights or leave it to local regulation. Use our Fremont ADU Eligibility Checker to see what you can build on your lot.

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

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 Fremont-specific issues.

Do these codes apply to all projects in Fremont? +

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 Fremont's planning department.

Check your Fremont project before you submit

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

Start Fremont Plan Check →