We design and build premium custom ADUs across Brentwood — detached guest houses, pool-house combinations, home-office studios, and full second residences. From first sketch to final inspection, one team handles every step.
Brentwood homes were built on the kind of lots that make great ADU projects possible — generous backyards, mature landscaping, deep setbacks, and the architectural quality that translates directly into beautiful backyard homes. Whether you're in flat Brentwood Glen, hillside Brentwood Heights, or one of the historic blocks near San Vicente, the same opportunity exists: a thoughtful detached ADU that adds real value without compromising what already works.
We've worked on lots from 5,000 sq ft to over an acre across the 90049 and 90272 zip codes. Most Brentwood ADUs we build aren't about maximizing density — they're about getting one more dwelling exactly right. A guest house for visiting family. A pool-side studio. A home office finally separated from the main residence. The Brentwood lot gives you room to do it well; our job is making sure the result looks like it always belonged there.
Brentwood lots support a range of approaches. These are the four project types that come up most often when homeowners in this area call us.
One- or two-bedroom standalone ADU, typically 800–1,200 sq ft, with full kitchen and bath. The most common Brentwood project — used for visiting adult children, in-laws, or eventual rental.
ADU paired with pool deck or cabana. Half-bath plumbing, full kitchen, room enough to host. Done right, looks like part of the original landscape architecture.
Smaller-footprint ADU built specifically for remote work — large windows, soundproofing, a galley kitchen, and a 3/4 bath. Increasingly popular post-2020 Westside.
Two-bedroom, two-bath ADU at the maximum allowable size (1,200 sq ft under standard LA rules). Used for multigenerational living or as a high-yield rental.
Brentwood Heights and the canyons north of Sunset come with slope, retaining-wall, and view-protection considerations. We've navigated the Hillside Construction Permit process and know what shortens it.
Less common in Brentwood than in older neighborhoods, but still viable when an existing detached garage has good bones. Typically faster and less expensive than a new build.
Two-bedroom detached ADU on a flat 8,500 sq ft lot south of Sunset. Indoor-outdoor living with floor-to-ceiling glass on the garden side, custom millwork throughout, and a kitchen built around imported Italian tile. Permitted in under three months under LA's 60-day standard plan rules; delivered in nine.
The owners use the ADU as a multi-generational space — visiting adult kids in the bedrooms, grandparents in the primary, and an indoor-outdoor "family room" extension during weekends. Exactly what a thoughtful Brentwood ADU should be.
Brentwood ADUs fall under City of Los Angeles jurisdiction — LADBS for building, LA City Planning for zoning. There's no HPOZ (Historic Preservation Overlay Zone) covering Brentwood proper, which keeps the design-review process simpler than it would be in, say, Highland Park. But Brentwood has its own things to navigate:
Hillside areas (Brentwood Heights, canyons): Lots above the Mandeville Canyon turn-off or in the hillside grading zone trigger the Hillside Construction Regulation (HCR) — affects haul routes, grading limits, and construction hours. We design around these constraints from day one rather than discovering them in plan check.
Very High Fire Hazard Severity Zone (VHFHSZ): Portions of Brentwood north of Sunset fall inside the VHFHSZ. Ignition-resistant construction is required — Class A roofing, ember-resistant venting, exterior wall assemblies, defensible space. Adds modest cost; we factor it into the initial quote.
LA's 60-day standard plan program: If your project fits one of LADBS's pre-approved standard plans, permits issue in 21–60 days instead of the historic 8–16 weeks. We use standard plans where it makes sense and custom design where it doesn't — and tell you which path makes sense for your lot during the free site visit.
Free site visit. Honest feasibility review. Written quote within seven days. No pressure, no automated follow-up, no fine print.
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