Additions and remodeling in Redondo Beach, Los Angeles County

Home additions in Redondo Beach

A second story in Redondo Beach starts with the foundation: footings, anchor bolts and shear walls are checked and strengthened before rooms go on top.

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When a second story is planned for a Redondo Beach house, the foundation becomes the first job. A floor above adds weight the old footings may not have been sized for, so an engineer reviews the existing concrete, the sill bolts and the shear walls before a single room is drawn upstairs. Strengthening that base comes first, because everything the growing family gains on the upper level rests on it.

Footings, bolts and shear walls

Where the existing footings are shallow or cracked, new reinforced footings are poured beside them and tied in with epoxy-set dowels. Sill plates get new anchor bolts or retrofit plates, and plywood shear panels are nailed to a pattern the engineer sets, so the lower walls can resist the sideways push of an earthquake with more weight on top. Posts that will carry new beams get their own pads. When the house sits over a crawlspace, much of this work is done from below, and the rooms overhead stay in daily use while it goes on.

Inspections before the upper floor

Structural sheets go to the City of Redondo Beach with the rest of the addition, and its inspectors see the trenches, the rebar and the shear nailing before anything is covered. Once the base is signed off, framing for the upper floor begins. Bedrooms, a bath and a landing take shape above the old roof line, and the opening for the new stair is cut late, after the rooms upstairs are dried in. Siding and roofing follow the old house in profile and color, so the second story looks like it was always there.

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