Santa Clara County has no countywide HPOZ. A handful of cities run their own heritage districts, including Mountain View's Whisman and Old Mountain View, plus Palo Alto's Professorville, where overlay design review applies to exterior changes.
Unlike Los Angeles, Santa Clara County operates no countywide Historic Preservation Overlay Zone over unincorporated land. Within incorporated jurisdictions, three cities maintain HPOZ-style overlays. Mountain View designates two districts under MVMC §36.27, requiring Heritage Preservation Commission review for visible alterations, demolitions, and new construction. Palo Alto's Professorville district under PAMC §16.49 imposes Historic Resources Board approval for exterior changes to contributing structures. Saratoga and Los Gatos use individual landmark designations rather than overlays. Outside these districts, county heritage rules rely on the SCC Heritage Resource Inventory administered by the Department of Planning and Development.
Unpermitted exterior alterations or demolition inside a city HPOZ district trigger stop-work orders, restoration mandates, and per-day administrative fines that can exceed $1,000 plus mandatory CEQA review for repeat infractions.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Mountain View, CA
Mountain View prohibits disturbing noise between 10pm and 7am weekdays and 10pm to 8am weekends, with enforcement by police and code enforcement officers.
Mountain View, CA
Amplified music from speakers, DJs, and live bands requires compliance with decibel limits and quiet hours; Shoreline Amphitheatre operates under a separate ...
Mountain View, CA
Industrial and commercial properties in Mountain View must comply with stationary noise source limits measured at property lines, with conditions enforced th...
Mountain View, CA
Mountain View Chapter 21 sets specific decibel thresholds varying by zoning district and time of day, measured at property lines with standardized equipment.
Mountain View, CA
Mountain View requires EV charging infrastructure in new construction under CALGreen Tier 2. Residential EV installations follow expedited permitting per AB ...
Mountain View, CA
RVs, trailers, and boats in Mountain View cannot park on public streets over 72 hours and face Large Vehicle Ordinance limits. Residential storage must be on...
Side-by-side rule comparisons with other cities in Santa Clara County.
See how Mountain View's hpoz rules rules stack up against other locations.
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