Backyard accessory dwelling unit — Los Angeles, CA
Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
About this service
This is a standalone structure built on your property, separate from your main house. People usually build these when they have extra yard space and want to create a private living area for family members or a home office. Factors like site accessibility, utility connections, and foundation type move the price up or down. Exact pricing confirmed free on the call.
Frequently asked in Los Angeles
What's involved in renting out an ADU in Los Angeles?
How does ADU building work in Los Angeles?
What kind of ADU services can I expect in Los Angeles?
What affects the cost of an accessory dwelling unit in Los Angeles?
Also serving nearby: Santa Monica · Inglewood · South Gate · Compton · Torrance
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Los Angeles — population 3,820,914; about 8,120 residents per square mile across 470.5 sq mi. ZIP codes covered include 90001, 90002, 90003, 90004, 90005, 90006, 90007, 90008.
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