ADU (Accessory Dwelling Unit) in San Diego

Professional adu (accessory dwelling unit) services in San Diego, serving homeowners throughout San Diego Metro. San Diego's housing stock is a mix of mid-century ranch homes, Spanish Colonial revivals, and Craftsman bungalows, and the neighborhood you are working in shapes almost everything about how a project runs, from foundation depth to roofline clearance to how a crew gets materials on site. The terrain shifts considerably across the city, with canyon-edge lots in places like Mission Hills or Kensington requiring careful attention to slope stability and soil conditions before any excavation or addition begins, while flatter coastal neighborhoods deal more with sandy or expansive soils and the corrosive effect of marine air on fasteners, framing hardware, and exterior finishes. The Mediterranean climate means you rarely lose days to rain, but that same dry heat drives thermal movement in older wood-framed structures, and any work touching an existing roof or exterior wall tends to uncover deferred maintenance that gets folded into the scope. Street access and lot width vary widely, and in denser older neighborhoods a narrow driveway or a tight side yard can turn a straightforward delivery into a half-day logistics problem worth planning around before the job starts. San Diego County holds more than a dozen incorporated cities plus a large unincorporated area, so the building department that reviews your project depends entirely on which one your parcel falls in. Everyone here works from the California Building Standards Code and from state ADU law, but submittal format, plan check depth, fee structure, and inspection scheduling are set locally and differ from one jurisdiction to the next. Coastal, fire district, and design review each sit on top of the standard building permit, and your local building department can tell you which ones your parcel triggers. That answer can add months before a permit is ever issued. Common home styles in the area include 1920s to 1940s Spanish Colonial Revival bungalows in North Park and University Heights, postwar tract ranch homes in Allied Gardens and Clairemont, 1960s to 1970s stucco garden apartments converted to condos in Mission Valley.