Room addition contractors in San Rafael, CA

15 contractors pulled 18 room addition permits in San Rafael in 2025–26. Ranked by the number of room addition permits; license classes are checked against what California requires for this work.

Across all cities we track, the median declared value of a room addition permit is $107,354 (middle half $49,712–$250,000). See Room addition cost in Sacramento & the Bay Area.

Also licensed for this work in San Rafael (no room addition permits in our data)

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