Renovation work involving structural changes, electrical, plumbing, or mechanical modifications requires a building permit in Santa Clara County. Cosmetic work does not. ADU conversions follow streamlined state permitting requirements.
Santa Clara County requires building permits for: structural modifications, electrical work, plumbing changes, HVAC modifications, window/door size changes, roofing, room additions, and garage conversions. Cosmetic work not requiring a permit includes painting, flooring, cabinet installation, and minor repairs. California's ADU laws (AB 68, SB 13) streamline permitting for accessory dwelling unit construction and conversions. Plan review typically takes 2-4 weeks for residential projects. In hillside areas, additional geotechnical and grading requirements may apply. Historic properties may require additional review.
Unpermitted work results in code enforcement action, potential fines, requirement to open finished work for inspection, and retroactive permits at increased fees.
Santa Clara County, CA
In unincorporated Santa Clara County, the County Noise Ordinance (Title B, Division B11, Chapter VIII of the County Ordinance Code) sets exterior noise limit...
Santa Clara County, CA
In unincorporated Santa Clara County, fence height is regulated by the County Zoning Ordinance administered by the Department of Planning and Development. Fe...
Santa Clara County, CA
ALL fireworks - including state-approved 'Safe and Sane' fireworks - are illegal in unincorporated Santa Clara County. The County has banned the sale, posses...
Santa Clara County, CA
Residential pools and spas in unincorporated Santa Clara County are governed by California Health and Safety Code Sections 115920 through 115929 (the Pool Sa...
Santa Clara County, CA
Unincorporated Santa Clara County allows movable tiny homes as a substitute for one Accessory Dwelling Unit under Zoning Ordinance Section 4.10.015(E), adopt...
Santa Clara County, CA
In unincorporated Santa Clara County, sheds are regulated as accessory buildings under Zoning Ordinance Section 4.20.020. A shed whose combined length plus w...
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