ADU rules in Petaluma, CA — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Petaluma IZO §7.030 implements California's permissive ADU laws (Gov Code §65852.2). Most single-family lots may build at least one ADU and one Junior ADU.
Detached ADUs up to 800 sq ft are allowed with 4-foot side/rear setbacks, no parking requirement when within ½ mile of transit, and a 16-foot height limit (taller for two-story). The City must approve a complete ministerial application within 60 days. State law preempts most local restrictions; Petaluma's ADU page provides standard plan options.
Denial appealable; unpermitted construction subject to retroactive permitting plus penalties.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Petaluma, CA
Persistent dog barking in Petaluma is enforced under the noise ordinance and animal provisions as a disturbance; chronic barking that disturbs neighbors can ...
Petaluma, CA
Construction noise in Petaluma is limited to daytime hours under the noise ordinance — generally 7 a.m.–7 p.m. weekdays with more limited weekend hours and n...
Petaluma, CA
Driveway approaches in Petaluma require an encroachment permit and must meet city standards; vehicles generally must be parked on an approved paved surface, ...
Petaluma, CA
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Petaluma, CA
Petaluma Code §11.44.120 prohibits parking commercial vehicles in residential districts except while actively loading/unloading or performing services on pro...
Petaluma, CA
Shared boundary fences in California are governed by the Good Neighbor Fence Act (CA Civil Code §841), presuming adjoining owners share the cost of a boundar...
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