ADU Construction in Santa Monica
ADU construction in Santa Monica with the delivery path to the rear of the parcel planned early, and fasteners and finishes chosen for salt air.
Every board, bag of mix and sheet of drywall for a Santa Monica ADU has to reach the rear of the parcel somehow, and behind an older house the path in may be a narrow side yard and a gate, with a mature tree in the way. We walk it on the first visit, measure each pinch point and plan deliveries, a line pump for the slab or hand carry where needed, before the design is final.
Salt air and materials
Santa Monica sits on the coast, and salt air works on fasteners, flashing and exterior metals faster than it would inland. We use stainless or hot-dipped galvanized nails and connectors, choose window hardware rated for coastal exposure and specify paint systems made for it. Depending on where the parcel sits, the coastal zone may also apply, which can add a review step. We check that early, alongside the city's own ADU standards, so the schedule accounts for it from the outset.
Utilities behind an older house
Inside an older main house there may still be a fuse panel or a small breaker panel, galvanized supply lines and a clay sewer lateral. Adding a unit with its own kitchen and bath increases demand on all three. We calculate electrical load, scope the sewer and test water pressure at the back of the lot. The results decide whether the ADU draws power through the existing service after an upgrade, or receives a separate meter and connection, and where trenches can run so they stay clear of the delivery path.
About our ADU Construction serviceEverything we do in Santa Monica
ADU Construction in Santa Monica: common questions
Starting at the main panel and the cleanout. We read the panel rating, check for old wiring and scope the sewer line from the cleanout. Water pressure is tested at the far end of the yard where the unit will sit. With those results, we decide whether the ADU shares the old services or gets new ones, and route the lines around tree roots and the access path.
Often, if the structure holds up. Garages near the coast can show corroded nails, rusted straps and rotted sill plates where moisture sat at the slab edge. We inspect each of those, check the slab and look at the roof framing. If most of the shell is sound, converting saves material. If not, building fresh on that spot is the cleaner choice.
We borrow from the main house: the roof pitch, the eave depth, the siding or stucco and the window shapes. On a coastal lot, the matching materials also have to handle salt air, so trims and fasteners are chosen with that in mind. A unit that shares the house's details and colors looks planned from the start.
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