Additions and remodeling in Calabasas, Los Angeles County

Home additions in Calabasas

Calabasas second story additions that begin with structural upgrades below, then an upper floor framed to ember rules and matched to the house you have now.

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When a Calabasas family wants bedrooms upstairs, structural work may have to come before any new framing goes up. The walls and footings of a single story house were sized for one roof, and a second floor adds weight they may not carry on their own. An engineer works out where new posts, beams, hold-downs and deeper footings belong. That base is built and inspected first, and the upper rooms rise on top of it.

Strengthening the house below

We begin by uncovering a few small spots: the top of a foundation wall, a patch of garage ceiling, a corner where a post will land. Those openings reveal the footing size, the condition of the sill plate and the path roof loads take to the ground today. The engineer designs the upgrades from that, which can mean new footings poured in the crawlspace, steel or wood beams across wide openings, and shear walls that brace the frame against earthquakes. City of Calabasas inspectors see each piece before it is covered.

An upper floor that keeps sparks out

Some land in Calabasas is on mapped fire hazard zones, so a new story there may need to meet ember-resistance requirements. On an upper floor the roof, eaves and attic vents take the most exposure to wind-blown sparks. The plan calls for a fire-rated roof covering, boxed eaves, mesh or baffled vents, and siding made to resist ignition, with matching trim and color carried onto the ground floor so both levels read as one house. Living downstairs through most of the build is usually possible, with the stair opening cut late and sealed.

Need more room in Calabasas?

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