Building setbacks in Thousand Oaks are established by TOMC Chapter 9 and vary by zoning district. Typical residential setbacks are 20-25 feet for front yards, 5-10 feet for side yards, and 15-25 feet for rear yards. Hillside overlay zones may have additional setback requirements.
TOMC Chapter 9 (Development Code) establishes setback requirements for all structures based on the zoning district. In single-family residential zones (RE, R-1), typical setbacks are 20-25 feet from the front property line, 5-10 feet from side property lines, and 15-25 feet from the rear property line. Corner lots have additional setback requirements for the street-side yard. Accessory structures like detached garages and sheds may have reduced setbacks, typically 5 feet from side and rear property lines. ADUs benefit from California state law provisions allowing 4-foot setbacks. The city's hillside overlay zones and planned development areas may have modified setbacks based on slope, lot size, and neighborhood context. Setback encroachments for eaves, gutters, and architectural features (typically 2-3 feet) are allowed. Setback verification is part of every building permit review.
Building within required setbacks without a variance is a code violation. Structures in violation may require modification or removal. Variances require public hearing approval.
Thousand Oaks, CA
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