ADU Surveys in El Cerrito, CA

El Cerrito splits its ADU process in two: detached units of 800 square feet or less and interior conversions go straight to building permit, while larger detached or attached ADUs adding floor area route through a planning application first. Either way the plan set leans on the city's design-review submittal standards, which want property lines with every length labeled, easements, the footprints of the nearest buildings on adjacent properties, setbacks, fences, and retaining walls. The city's checklist also lists a "Site Survey — conducted by licensed surveyor" and a recent title report among the materials it may require depending on the project — discretion that, in practice, gets exercised on exactly the lots where surveying is hardest: the eastern hillsides.

El Cerrito climbs from the flats along San Pablo Avenue into some of the steepest residential streets in the inner East Bay, and an ADU that pencils on a flat lot near the BART stations becomes a grading, drainage, and retaining-wall project a few blocks uphill. Terraced backyards held by decades-old walls, shared driveways serving stacked parcels, and slopes that turn a 4-foot setback into a foundation-engineering question are everyday conditions here. Projects creating or replacing 2,500 square feet of impervious surface also trigger the city's stormwater plan requirement — easy to reach once an ADU, its paths, and parking are totaled. Our laser-scanned site survey captures the boundary, the walls, the neighbors' structures, and the terrain in one visit, so whether the city asks for the formal site survey or not, your designer works from measured reality.

El Cerrito parcels record through the Contra Costa County Recorder in Martinez. For terrain-heavy projects, our El Cerrito topographic surveys extend the same visit into full contour mapping.