CSLB B #1149349  ·  Licensed, Bonded & Insured  ·  Serving LA, Orange County & San Bernardino
Custom ADU built in Long Beach by Renova Built
Home/Long Beach
Licensed CSLB ADU Builder, Long Beach

ADU Builders in Long Beach, California

Renova Built designs, permits, and builds custom ADUs across Long Beach. If you want an ADU in Long Beach, we know the local permit process, and Long Beach is one of the fastest cities in the region to get a Long Beach ADU approved.

Permits in ~4 WeeksLong Beach Development Services
Licensed & BondedCSLB B #1149349
In-House Design + BuildOne accountable team
Why Long Beach

Why Long Beach Is Ideal for ADU Construction

If you own a home in Long Beach, you are in one of the best cities in Los Angeles County to build an ADU. The reasons an ADU in Long Beach pencils out are practical, and they directly affect your timeline and your budget.

First, the permit process is faster here. Long Beach runs its own building department, Long Beach Development Services, separate from the City of Los Angeles. In our experience permitting projects across the region, Long Beach turns approvals around in roughly 4 weeks, while many surrounding jurisdictions take far longer. That speed gets your Long Beach ADU under construction, and earning, sooner.

Second, the housing stock fits ADUs well. Long Beach is full of single-family lots with detached garages and usable backyard space, which makes both garage conversions and new detached ADUs straightforward to design and build. Pre approved ADU plans can move even faster when a stock layout fits your lot.

Third, rental demand is strong. Long Beach is a desirable place to live near the coast, the universities, and downtown, so a well-built Long Beach ADU has a real, ongoing role whether you rent it, house family, or use it as a home office.

Put those three together, faster permits, a housing stock that suits ADUs, and steady rental demand, and Long Beach becomes one of the most ADU-friendly cities in Los Angeles County to build in. That is why so many of the homeowners we work with choose to add an ADU in Long Beach rather than wait, and why we have made the Long Beach ADU process a core part of what we do.

Custom detached ADU in a Long Beach backyard by Renova Built
Long Beach ADU Snapshot

Long Beach ADU Snapshot

The essentials for building an ADU in Long Beach at a glance, combining the California state rules that apply everywhere with the local details specific to your Long Beach address.

California Baseline + Long Beach Specifics
Up to 1,200 sq ftMax detached ADU size (cities must allow at least 800 sq ft)
4 ftMinimum side & rear setbacks for an ADU
16 ft base heightUp to 18 ft near transit or matching the main roofline; up to 25 ft if attached
~60 days (state) + fast local reviewMinisterial approval, no public hearing; Long Beach often turns around in about 4 weeks
Long Beach Development ServicesLocal permit office for Building & Safety and Planning, not LADBS
Not required for an ADUOwner-occupancy; a JADU up to 500 sq ft within the home does require it
Not required near transit or for conversionsParking; converting a garage triggers no replacement parking (SB 1211)
Coastal review may apply near the shoreNaples, Belmont Shore, and shoreline lots can fall in the coastal zone; we confirm coastal status for your address up front
Garage conversions & detached ADUsBest-fit types for Long Beach bungalow and single-family lots; we have a 400 sq ft garage-conversion ADU in construction now

California ADU rules set the baseline statewide; local details can change, so we confirm the current requirements for your Long Beach address before design.

Local Permits

The Long Beach ADU Permit Process

We handle the entire submission for you, so you never have to sit in a city office. Here is how the Long Beach ADU permit process works.

California law requires cities to approve a complete, compliant ADU application within 60 days, and Long Beach generally moves faster than that. All ADU permits in the city go through Long Beach Development Services rather than LADBS, so the submission, plan check, and inspections are handled locally.

Our team prepares your full plan set, including structural drawings and the Title 24 energy documentation the city requires, submits it to Long Beach Development Services, and manages every plan-check comment until your project is cleared to build. Because we have permitted ADUs in Long Beach before, we know what the city expects up front, which is how we avoid the back-and-forth that stalls most projects. Where a stock layout fits, pre approved ADU plans can shorten plan check even further.

For a deeper look at California ADU law and permit costs, see our ADU permits guide. When you are ready, the fastest path is a free consultation.

ADU plans and a Long Beach Development Services building permit
Long Beach At a Glance

Why an ADU in Long Beach Moves Faster

~4 WeeksTypical Long Beach ADU permit timeline through Long Beach Development Services
Local DeptReviewed by Long Beach Development Services, not LADBS, so submissions stay local
Up to 1,200 sq ftDetached ADU size allowed under California state law
ADU Services in Long Beach

What We Build in Long Beach

Every Long Beach ADU project is fully designed, permitted, and built by one team. Explore the service that fits your lot.

There is no single right way to add an ADU in Long Beach. The best path depends on your lot, your existing structures, and how you plan to use the finished space. A detached ADU gives you the most freedom and the highest rental value, a garage conversion is the lowest-cost route to a legal unit, and a home extension lets you grow your own living space instead of adding a separate dwelling. We design and build all three across Long Beach, and we will tell you honestly which one makes the most sense for your property during your free consultation.

New detached ADU in a Long Beach backyard by Renova Built
Detached ADUA brand-new, standalone unit built in your Long Beach backyard, from compact studios to multi-bedroom homes.ADU Construction
Garage conversion ADU in Long Beach by Renova Built
Garage ConversionThe lowest-cost path to a legal ADU. We convert your existing Long Beach garage into a permitted living space.Garage Conversion
Ground-floor home extension in Long Beach by Renova Built
Home ExtensionAdd square footage to your existing home with a ground-floor extension designed to match your space.Home Extension
Long Beach Projects

Recent Long Beach ADU Builds

View All Projects

These are a few of the Long Beach ADU projects our team has designed, permitted, and built. From a detached garage turned into a one-bedroom rental, to a brand-new two-bedroom detached ADU in the backyard, every Long Beach build is handled in-house from the first site visit to the final inspection. The interior finishes you see here, the cabinetry, flooring, and lighting, are part of the same single contract, so there is no gap between the design we draw and the unit you move into.

Completed garage conversion ADU in Long Beach by Renova BuiltGarage Conversion ADU1 Bed, 1 Bath, Long Beach
New detached ADU built in Long Beach by Renova BuiltDetached ADU2 Bed, 1 Bath, Long Beach
Interior of a custom ADU built in Long Beach by Renova BuiltInterior FinishDetached ADU, Long Beach
Neighborhoods We Serve

Building ADUs Across Long Beach

We build ADUs throughout Long Beach, including these neighborhoods and the surrounding area.

Long Beach is a large, varied city, and the right ADU approach often changes from one neighborhood to the next. The older single-family lots in Belmont Heights, California Heights, and Wrigley frequently have detached garages that convert cleanly into a legal unit, while the larger backyards in Bixby Knolls and Los Cerritos tend to suit a new detached ADU. Whatever part of Long Beach you are in, we handle the design, the Long Beach Development Services submission, and the full build under one roof.

Belmont Heights Bixby Knolls Naples Alamitos Beach Belmont Shore California Heights Los Cerritos Wrigley East Village
Long Beach ADU Cost

What an ADU Costs in Long Beach

Pricing depends on the type and size of the unit. These are typical Long Beach ADU ranges, not a fixed quote.

Project typeTypical Long Beach range
Garage conversion ADU$150K to $200K
Detached ADU (500 sq ft)$180K to $220K
Detached ADU (750 sq ft)$250K to $300K

A garage conversion is almost always the lowest-cost way into a legal ADU in Long Beach, because the foundation, walls, and roof of the existing garage are already in place, so you are paying to finish a structure rather than build one from the ground up. A new detached ADU costs more because it is built from scratch, but it also delivers the most square footage, the most privacy, and typically the strongest rental income. Where a stock layout fits your lot, pre approved ADU plans can trim both design time and plan-check time, which helps keep the overall cost predictable.

Final pricing for your Long Beach ADU depends on site conditions, finishes, and city fees. We give you a clear, itemized estimate during your free consultation, so there are no surprises once construction begins. For a full breakdown by size and type, see our ADU cost guide.

Free Long Beach ADU Consultation

Start Your Long Beach ADU

Tell us a few details about your property and we will reach out, usually within one business day. No pressure, no commitment. Call (818) 968-2981 or send your details.

Long Beach ADU FAQ

Long Beach ADU Questions, Answered

How long does an ADU permit take in Long Beach?

Long Beach is one of the faster cities in the region. California law requires the city to approve a complete, compliant ADU application within 60 days, and in our experience Long Beach Development Services often turns approvals around in roughly 4 weeks. We prepare and manage the full submission so it moves as quickly as possible.

What is the average cost of an ADU in Long Beach?

A garage conversion ADU in Long Beach commonly runs $150K to $200K, and a new detached ADU typically runs $180K to $220K for around 500 sq ft, more for larger units. Final cost depends on site conditions, finishes, and city fees. We give you an itemized estimate at your free consultation.

Does Long Beach have any unique ADU rules?

Long Beach runs its own building department, Long Beach Development Services, rather than going through LADBS, so submissions and inspections are handled locally. The core rules follow California ADU law, but local setback, parking, and zoning details can vary by lot. Because we have permitted ADUs in Long Beach, we know what the city expects.

What neighborhoods in Long Beach do you serve?

We build throughout Long Beach, including Belmont Heights, Bixby Knolls, Naples, Alamitos Beach, Belmont Shore, California Heights, Los Cerritos, Wrigley, and the surrounding neighborhoods. If you are nearby and do not see your area, reach out and we will confirm.

Can I convert my Long Beach garage into an ADU?

In most cases, yes. A garage conversion is the lowest-cost path to a legal ADU because the foundation, walls, and roof already exist. We confirm your garage is a good candidate during the consultation, then handle the design, permits, and full conversion. See our garage conversion page for details.

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