Room Additions in Los Angeles
Room additions in Los Angeles built on new footings tied to the existing foundation, with framing drawn for LADBS review by Aspenwell Construction.
Wood that touches concrete drinks moisture out of it, so the sill plate under a Los Angeles room addition is pressure-treated lumber held down by galvanized anchor bolts. It is the lowest board in the new wall and every board above it leans on it. A membrane under the slab and a clear gap between siding and soil keep that plate dry, and the written quote names each of these materials.
Footing, sill and anchors
The new footing is sized to the soil and to the walls it will carry, and its top is set at a height that lets the floors line up. Steel dowels are epoxied into the existing footing where old and new touch, so the pair moves as a single piece. Anchor bolts go into the wet concrete at the spacing the engineer's plans call out. The inspector looks at the trench and the steel before any concrete is placed, so all of it stays visible until then.
Plan review at LADBS
A Los Angeles addition is permitted through LADBS, and its reviewers read the structural sheets for how every new load reaches the ground. Our office works with a designer and an engineer to produce the drawings, files them and answers whatever corrections come back. Inspections follow the build in order: footing, framing, then the tie-in to the old house. A site visit comes before the quote, so the written scope reflects what is under your floor and above your ceiling, and a clear scope answers reviewers' questions early.
About our room additions serviceEverything we do in Los Angeles
Room Additions in Los Angeles: questions
A second floor adds a great deal to what the old walls carry, so the engineer inspects the footing beneath them: how wide it is, how deep it goes and whether bars run through it. Sound footing may carry the load with new shear walls above. Weak footing is reinforced with added sections or posts, and those are poured before any framing starts.
Nails alone do not make the join. A ledger is fastened to the old wall with structural screws at a spacing the engineer sets, the rim boards line up, and the roof sheathing runs over the old deck with flashing tucked beneath the shingles. Only the strip of wall needed for that connection is opened.
Yes when the crawlspace is open anyway for the new footing. Anchoring the sill and bracing the short walls then goes onto the same permit and quote, and the inspector reviews everything in a single trip. That costs less effort than opening the floor again later.
Room Additions in other cities
More we build in Los Angeles
Book an inspection in Los Angeles
Describe the house and what it needs. We look at the structure first and send the quote in writing.