ADU Construction in Mar Vista
Mar Vista ADUs drawn for LADBS review, with foundations matched to the soils findings, corrosion-resistant metal and a fire-rated exterior.
Liquefaction maps are among the records an LADBS reviewer pulls for a Mar Vista ADU, because a parcel shown on the state's seismic hazard maps may need a soils report before footings are approved. That answer shapes the foundation, so Fernhill Builders runs the lookup alongside the fire map and the coastal zone check before drawing. Whatever the ground calls for, the shell above stays hardened with rated siding, tempered glass and ember-resistant vents.
When a soils report is needed
A geotechnical engineer, called in when the parcel is mapped, drills or digs test borings and writes up how the soil behaves when it shakes. Those recommendations can call for deeper footings, a thicker slab with more steel, or a mat foundation that ties the unit together as one piece. We carry the report into the structural drawings and answer each reviewer comment in writing. On a lot off the map, standard footings sized to the soil are generally enough, and the project skips that extra round of study.
Damp air and the frame
Within reach of ocean air, the steel inside a wood frame can corrode quietly. Hold-downs, straps and anchor bolts are specified hot-dip galvanized or stainless, and the fasteners in pressure-treated sill plates match them. Flashing is aluminum or coated steel with sealed laps. Outside the frame, cement plaster or fiber cement takes damp air without swelling, and tempered dual-pane glass in fiberglass frames keeps the openings tight. If the lot lies inside the coastal zone, a separate approval may run alongside the building permit, and we check for that at the start.
ADU Construction in Mar Vista: common questions
Mar Vista lots come under LADBS, which compares each one with the state fire hazard severity maps before applying the wildfire chapter. Our Mar Vista units use those assemblies regardless: noncombustible walls, enclosed eaves, vents with fine mesh and tempered glass. Paired with corrosion-resistant metal for the damp air, they give the unit a shell built for both exposures.
A Mar Vista package leans on the structural sheet, which carries the foundation the soils findings call for, and on the site plan, which notes whether the lot may sit in the coastal zone. Both answer questions LADBS raises for a lot like this. Coverage is for a qualifying single-story unit.
If the house is being rebuilt, a single soils report can often cover both foundations, and the two can be poured in the same phase. LADBS permits each building, and where a coastal approval applies, both may need it. We line up the reviews so neither structure waits on paperwork the other has already cleared.
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Tell us about the house and the adu construction work. We reply about a walk-through and a written scope.