Unincorporated Orange County does not mandate foundation bolting for existing homes. California's Earthquake Brace + Bolt (EBB) program offers grants up to $3,000 for qualifying homeowners to bolt their homes to foundations and brace cripple walls.
Unincorporated Orange County does not have a mandatory foundation anchoring ordinance for existing homes. However, California's Earthquake Brace + Bolt (EBB) program, administered by the California Residential Mitigation Program (CRMP), provides grants up to $3,000 for eligible homeowners to seismically retrofit their homes. Eligible homes are typically pre-1980 construction with raised foundations. The retrofit involves bolting the home's sill plate to the foundation and bracing cripple walls (short wood-framed walls between the foundation and first floor). New construction since the 1950s-1960s has generally been required to include foundation bolting under building codes. Pre-1940s homes in older unincorporated areas are most at risk. Building permits from OC Building are required for retrofit work. Licensed contractors certified in seismic retrofit are recommended. The California Earthquake Authority offers premium discounts for retrofitted homes.
No mandatory anchoring requirement — no violations for non-retrofit. Building permits required for any structural work. Unpermitted modifications violate building codes. Insurance claims may be affected by non-retrofitted foundations.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Mission Viejo, CA
Mission Viejo uses a nuisance-based noise standard rather than fixed decibel limits for most residential situations. The General Plan Noise Element establish...
Mission Viejo, CA
Mission Viejo is not within the primary noise contour of any major airport. The nearest commercial airport is John Wayne Airport (SNA), approximately 15 mile...
Mission Viejo, CA
Outdoor music in Mission Viejo must not be audible beyond property boundaries at levels that disturb neighbors. The city hosts outdoor concerts at the Lake a...
Mission Viejo, CA
Mission Viejo does not have a citywide overnight parking ban on public streets, but the 72-hour storage limit applies. Most HOA communities restrict or prohi...
Mission Viejo, CA
Mission Viejo generally allows street parking but restricts it in certain areas through posted signage. The 72-hour vehicle storage limit on public streets i...
Mission Viejo, CA
Mission Viejo actively enforces abandoned vehicle regulations on public streets and private property. Vehicles that are inoperable, unregistered, or parked f...
Side-by-side rule comparisons with other cities in Orange County.
See how Mission Viejo's foundation anchoring rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.