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Altadena · San Gabriel Valley
Home Addition Contractor in Altadena
A home addition in Altadena now often comes up during a rebuild. A like-for-like rebuild in the Eaton Fire area can add up to 10 percent or 200 square feet, whichever is greater, without triggering current zoning review. The County also lets a rebuild application include a new ADU built alongside the main house. Anything larger, or an addition to a home that survived, goes through regular County review. We check your lot, your old footprint, and the fire-zone rules before design.
Call (323) 393-6552 · California Contractor License #1148002 · 5.0 on Google
Permits and local rules
Remodeling rules in Altadena
Home Additions in Altadena
Use the 200 square feet
On a small Altadena bungalow, 200 extra square feet can be a third bedroom or a real primary suite. We design the rebuild to use that allowance on day one instead of planning a second addition later.
How it works
Premier Hi-End Builders is a home addition contractor across Greater Los Angeles, building room additions, second story additions, and suite additions. We handle feasibility, drawings, structural engineering, and plan check, then match stucco, roofing, and trim to the existing house.
We look at your lot, setbacks, and what the city will allow before anything gets drawn. Hillside conditions and HOA rules get checked here.
Plans go to an architect and a structural engineer. You see layout and elevations before they head to plan check.
We submit the plans to your city and handle any corrections. Plan check takes longer in some cities than others, and we give you a realistic timeline for yours.
We pour the footings, build the slab or raised floor, frame the walls, and tie in the roof. Inspections are scheduled as each stage is finished.
We match the stucco, siding, roofing, windows, and interior finishes to the existing house, so you can't tell where the old part ends.
Our work
Recent projects near Altadena
Free estimate in Altadena
Get a free home addition estimate in Altadena
Tell us about the project and we'll call you back within one business day to set up a visit.
FAQ
Common questions about home additions in Altadena
Yes. LA County allows new ADUs in the same rebuild application as a like-for-like home. Our ADU page explains how the unit itself is built and permitted.
It goes through regular County review under current zoning rules, which takes longer. We show you where the line is for your lot before you commit.
Lot setbacks, hillside or HOA rules, and how the new room should connect to the house. We check feasibility before drawings so you are not paying for a plan the city will reject. The free LA Remodel Decision Sheet lists what to settle before you call an architect.
Living space additions, second story additions, extra bathrooms, home offices, and guest or primary suites. Many owners pair an addition with a kitchen remodel so one crew handles both.
Other services in Altadena
