ADUs & Additions in Ladera Heights

Los Angeles County Public Works Building and Safety, Southwest District Office. Ladera Heights is unincorporated, so building permits come from Los Angeles County Public Works through its Southwest District Building and Safety office, and zoning follows Title 22 of the County Code. The whole community sits inside the Westside Planning Area Standards District, adopted in 2025, which requires service areas and mechanical equipment to be visually unobtrusive and integrated with the design of the site and building, and asks that a home's required front yard, apart from driveways and entry walks, be kept in drought-tolerant or low-water, native or non-invasive planting served by an on-site irrigation system such as drip. Title 22 allows a swimming pool in a required rear yard if it stays at least five feet from every lot line, and allows pool pumps, heaters and filters there if they sit at least two and a half feet from any lot line and stand no more than six feet tall. We prepare the drawings, make the submittal and handle plan-check corrections ourselves, so you are not the one chasing plan check.

Most homes sit on R-1 single-family lots, with pockets of two-family and limited multiple-residence zoning. South of Slauson Avenue the ground is gentler, while Upper Ladera's streets climb toward the Baldwin Hills and many lots include mapped slopes. A pool built within the required rear yard must stay at least five feet from every lot line. One local condition that shapes the work: The northern blocks of Upper Ladera, including parts of Shenandoah Avenue, Senford Avenue, Reynier Avenue and Ladera Crest Drive, sit in a Very High Fire Hazard Severity Zone on the 2025 local responsibility area maps, with High and then Moderate bands stepping down toward Slauson Avenue.

All of it, including Upper Ladera, Lower Ladera and Old Ladera. Our crews run every job out of our Cahuenga Pass base in Los Angeles, with our own people on site.

Detached ADU: generally $150,000 to $400,000+ across Southern California. What moves it is square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build. We give line-item pricing after seeing the site rather than quoting a number over the phone.

Plan a realistic year. Design and engineering typically take one to three months, city plan check and corrections add several more, and construction usually runs four to eight months depending on size and site access.

Usually yes, and often substantially, because the foundation, walls and roof already exist. The trade-offs are that you lose the garage, and older slabs and framing sometimes need upgrading to meet current code.

California ADU law is designed to allow long-term rental, and an ADU is one of the few ways to add rentable square footage to a single-family lot. Short-term rental rules vary by city, so confirm your local ordinance before counting on that income.

Yes. Plans, engineering, Title 24 and the city submittal are all handled in-house, including responding to plan-check corrections. That is a service we sell on its own, so it is not something we hand off.