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ADU Construction · South Bay, Los Angeles

ADU Builder in
the South Bay

Add rental income or space for family with an accessory dwelling unit — designed, permitted, and built by one licensed local team. Serving Torrance, Redondo Beach, Carson, Gardena, and the greater South Bay.

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Three ways to add a unit

Which ADU fits your lot?

TYPE A

Detached ADU

A standalone backyard home — the most privacy, the most rental value, and the most design freedom. Ideal for the larger lots common across Torrance, Carson, and Gardena.

Best for: rental income & multigenerational living
TYPE B

Garage Conversion

The fastest, most budget-friendly path to an ADU — your garage's structure already exists, so the project centers on conversion rather than ground-up construction.

Best for: fastest timeline & lowest cost
TYPE C

Attached ADU

An addition to your existing home with its own entrance and kitchen — a smart fit when yard space is limited but square footage can extend sideways or up.

Best for: smaller lots & keeping family close

Why the South Bay is ADU country

California's ADU laws now allow an accessory dwelling unit on virtually every single-family lot in the state — and South Bay lots are especially well suited for them. The generous post-war parcels across Torrance, Gardena, Carson, and North Redondo often have exactly the backyard or garage footprint an ADU needs.

Homeowners here build ADUs for two main reasons: long-term rental income in one of the strongest rental markets in the country, and housing for family — aging parents, adult kids, or guests — without anyone giving up privacy.

What's included when we build your ADU

  • Feasibility & design — we evaluate your lot, setbacks, and utilities, then design a unit that maximizes space and rental appeal.
  • Plans & engineering — architectural drawings and structural engineering prepared for city submission.
  • Permits, handled — we submit, respond to plan-check corrections, and keep the project moving through your city's process.
  • Full construction — foundation to finishes: framing, electrical, plumbing, HVAC, kitchen, bath, and flooring by one accountable team.
  • Inspections & final sign-off — we schedule and pass every required inspection through certificate of occupancy.

Garage conversions: the fast lane

If you have a two-car garage you rarely park in, you may already own most of an ADU. Conversions typically move faster through both permitting and construction than detached builds, making them the most popular first ADU across the South Bay. We handle the full scope — insulation, drywall, kitchen and bath plumbing, electrical upgrades, and the new entrance — so the finished unit feels like a home, not a converted garage.

Common questions

South Bay ADU FAQs

Can I build an ADU on my lot?

Almost certainly yes. State law requires cities to allow ADUs on single-family lots, and most South Bay properties qualify for both an ADU and, in many cases, a junior ADU as well. We confirm exactly what your lot allows — setbacks, size limits, parking — during the free site visit.

How much does an ADU cost in the South Bay?

It depends on the type: garage conversions cost meaningfully less than detached new builds, and finishes drive the range too. Rather than quote a blind number, we walk your property and give you a written estimate for your specific project — free, with no obligation.

How long does an ADU take to build?

Garage conversions are the quickest path; detached units take longer due to foundation and utility work. Design and permitting add time before construction starts — which is why we begin the paperwork immediately and run it in parallel wherever your city allows.

Will an ADU pay for itself?

South Bay rents are among the strongest in Los Angeles County, and a well-built unit typically rents quickly. Many of our clients treat their ADU as a long-term income property; others build for family first and rental value second. Either way, an ADU is one of the few home projects that generates monthly income.

Do I need a permit for a garage conversion?

Yes — converting a garage into living space requires permits and inspections, even though the structure exists. Unpermitted conversions create serious problems at sale time and with insurance. We handle the full permit process so your unit is legal, insurable, and adds real value to your property.

Find out what your lot can do

Free, no-pressure ADU estimates from a licensed South Bay contractor. Tell us what you're picturing and we'll tell you what it takes.

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