Backyard accessory dwelling unit — Torrance, 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 Torrance
What are the requirements for accessory dwelling unit homes in Torrance?
Can I get financing for an accessory dwelling unit in Torrance?
What are the requirements for homes with in-law suites in Torrance?
How do I get an ADU permit in Torrance?
What are the options for accessory dwelling units (ADUs) in Torrance?
What is involved in ADU building in Torrance?
Are modular accessory dwelling units a good option in Torrance?
Also serving nearby: Carson · Compton · Inglewood · Long Beach · South Gate
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Torrance — population 139,224; about 6,786 residents per square mile across 20.5 sq mi. ZIP codes covered include 90501, 90502, 90503, 90504, 90505, 90506, 90507, 90508.
Neighborhoods served in Torrance: Carson, Compton, Inglewood, Palos Verdes Estates, Redondo Beach — and every surrounding area.
Areas we serve
Browse by state, then city.