CaliCustomADU

ADU Builders in Long Beach, California

Long Beach is one of Los Angeles County's largest cities, and a detached ADU or garage conversion is now the fastest way to add value to a lot here. We design and build ADUs tailored to Long Beach's mild Mediterranean climate with hot inland summers.

Typical cost

$178k–$416k

Permit time

8–14 weeks

Est. rent

$2,200+/mo

Population

451,000

Free Long Beach ADU estimate

Popular ADU types in Long Beach

Our most requested projects in Long Beach are junior ADUs (JADUs) and garage conversions. Across Long Beach, we see strong demand for 1-bedroom units around 600 sq ft — the sweet spot for build cost versus rental income.

Design-wise, Long Beach homeowners in the LA Basin tend to favor Spanish revival, mid-century modern and Craftsman details that match existing streetscapes.

Building an ADU in Los Angeles County

Every Long Beach ADU we build is engineered around local conditions — especially hillside grading, alley access and tight setbacks on older lots. We prepare complete plan sets so the city can approve within the state's 60-day review window, typically 8–14 weeks here.

At $2,200–$3,550 per month in rent, a new ADU in Long Beach can pay for itself in roughly 8.6 years.

Long Beach ADU FAQs

How much does it cost to build an ADU in Long Beach?

Most Long Beach ADUs we build land between $178k and $416k, depending on size, site work and finishes. Garage conversions sit at the low end; custom two-story units at the high end.

How long does ADU permitting take in Long Beach?

State law requires cities to act on complete ADU applications within 60 days. In practice, Long Beach permits typically take 8–14 weeks when plans are submitted complete — which is what our in-house drafting team focuses on.

What can I rent an ADU for in Long Beach?

Based on LA Basin rental trends, a new 1-bedroom ADU in Long Beach commonly rents for $2,200–$3,550 per month, putting typical payback around 8.6 years.

What are the biggest challenges for ADUs in Long Beach?

In Long Beach and the wider LA Basin, the issues we plan around most are hillside grading, alley access and tight setbacks on older lots. We review these during a free feasibility check before you commit.

Is junior ADUs (JADUs) a good option in Long Beach?

Yes — junior ADUs (JADUs) are among the most popular projects we build in Long Beach. Many Long Beach parcels built between the 1950s and 1980s have wide rear yards that fit an 800–1,200 sq ft detached unit without touching the main house.

ADU builders near Long Beach

Get a free ADU feasibility check in Long Beach

Tell us about your lot. We'll review zoning, setbacks and utilities and send a ballpark budget — no obligation.