Thousand Oaks, CA Building Safety: Building Permits (2026)
Key Facts
- Required roof class
- Class A for all types of construction, citywide
- Class B/C roofs
- No longer permitted anywhere in the city
- Wood shingles/shakes
- Must also meet Class A even if fire-retardant treated
- General penalty
- Up to $1,000 fine and/or 6 months jail per § 8-1.23; each day is a separate offense
Summary
Thousand Oaks requires Class A roof coverings on all new construction citywide, not just in designated wildfire zones, by deleting the California Building Code's normal allowance for lower-rated Class B and C roofs. Fire-retardant treated wood shingles and shakes are likewise restricted to Class A only.
Section 1505.1 “General” is amended by removing the reference to Class B and C roof assemblies and roof coverings. Table 1505.1 “Minimum Roof Covering classification for Types of Construction” is amended as follows: For all types of construction, the Minimum Roof Covering Classification is Class A. Section 1505.1.2 “Roof covering within all other areas” is amended by changing the reference from Class C to Class A. ... Section 1505.6 “Fire-retardant treated wood shingles and shakes” is amended by removing the reference to Class B and C roof assemblies and roof coverings. Only Class A roof are allowed.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-78: 2026 S-78 Supplement contains: Current city legislation passed through March 31, 2026).
Full Breakdown
The amendment strikes references to Class B and C roof assemblies from Building Code Section 1505.1 and its companion table, and changes Section 1505.1.2 so that roof coverings 'within all other areas' of the city must also be Class A (previously Class C was allowed in some areas). Sections 1505.3 through 1505.5 of the state code, which set out separate standards for lower fire-classification roofs, are deleted outright, leaving Class A as the only permitted roof covering classification for any type of construction in the city.
Violations & Fines
Roofing work that doesn't meet the Class A requirement violates the Building Code; under § 8-1.23, violations are punishable by a fine of up to $1,000, up to 6 months in county jail, or both, with each day of a continuing violation treated as a separate offense.
Frequently Asked Questions
Can I re-roof my Thousand Oaks house with a Class C shingle?
Does this only apply in designated fire hazard zones?
Sources & Official References
Other rules in Thousand Oaks
California rules heatmap·Compare Thousand Oaks to another location·View the California building safety overview
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