Foundation work in Oxnard
Ventura County is one of only two California counties in EPA radon Zone 1, where the predicted average indoor level is above 4 pCi/L. The other is Santa Barbara County. Mitigation can bring most homes to 2 pCi/L or less, the state health department says, and it advises a fix at 4 pCi/L or more. Under Community Development, Oxnard's Building Division staffs a public counter with permit technicians and runs a permits portal at permits.oxnard.org (per its FAQ as archived March 1, 2024).
The Building & Engineering page gives its phone as (805) 385-7925. That page says site plans and structural calculations may be required, depending on the project. For a block or property wall, the city's Building & Construction Handouts page links a Concrete Block Wall Detail (B801), a Conventional Wall Brace (B813) and Property Wall Fence Requirements (B253). Of the state's liquefaction, landslide and fault maps, only liquefaction shows up here: 4 quadrangles with that zone reach Oxnard's boundary, and no fault or landslide zone does.
A zone at the edge of town isn't a verdict on your street. Houses from 1950 through 1979 make up 51.4% of the stock, with 1977 as the median year built (ACS, 2020 to 2024). For county environmental health questions, there's the Ventura County Environmental Health Division at ventura.org/environmental-health.
What foundation work costs near Oxnard
No one has sent us a quote for Oxnard, so there's no city price here. The California page lists the estimates beside what the trades are paid, which is a wage and isn't a price ($34.09 an hour in the BLS wage data). How we estimate costs. Whoever you call, ask for an itemized written price.
Permits for foundation repair work in Oxnard
If Oxnard has its own building department, start there and ask who issues permits for foundation, waterproofing and sump work.
The California Building Standards Code says no structure may be altered, repaired or improved without a permit from the building official, and CSLB adds that requirements vary by city and county. The building department for your address decides whether a given foundation, waterproofing or sump job counts.
Foundation jobs in Oxnard
Sources for Oxnard
- EPA Map of Radon Zones spreadsheet (county table), with EPA California map PDF Read Oct 20, 2026.
- CDPH: Radon and Real Estate; Radon Fix; Radon Testing Read Oct 20, 2026.
- Building FAQ, City of Oxnard Read Oct 22, 2026. Confirm it with the source itself before relying on it.
- Building & Engineering, City of Oxnard Community Development Read Oct 23, 2026. Confirm it with the source itself before relying on it.
- CGS Seismic Hazard Zones: liquefaction zones Confirm it with the source itself before relying on it.
- ACS 5-year B25034 Year Structure Built Confirm it with the source itself before relying on it.
- Environmental Health Division, County of Ventura Read Oct 22, 2026.