Fairfield, CA Building Setbacks & Zoning: Structure Height Limits (2026)

1's Table 25-2 sets the maximum height for the main dwelling at 35 feet across all four RVL/RL density suffixes (RVL:40, RVL:20, RVL:15, RL:10); the same 35-foot cap applies in the RLM/RM/RH small-lot regulations of Table 25-5. 6, meaning any home proposed above 35 feet must go through discretionary Planning Commission or Community Development Director review rather than a routine building permit. Accessory structures and room additions are governed separately: Table 25-7 caps a small accessory structure at 7 feet, a large accessory structure at 16 feet (or up to 35 feet if it meets all room-addition standards per footnote 1), and a room addition at 35 feet, matching the main-dwelling ceiling.

These height figures interact with the setback tables discussed above; a taller accessory structure or room addition must also satisfy the setback and rear-yard-coverage limits in the same table. The height standards apply citywide in the low-density residential zones that ring Fairfield's Green Valley hillside area and the flatter subdivisions near Suisun Marsh, and they are enforced through the same plan-check process the Community Development Department uses for setback compliance.