ADU Builders in
Long Beach, CA
Compare 3 builders with sourced Long Beach service evidence and CSLB records checked August 7, 2026, plus design, utility, and permit paths
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Quick Stats
Directory
Compare 3 ADU builders with sourced evidence that they serve Long Beach. Their CSLB records were checked current and active on August 7, 2026, but status can change. Inclusion is not an endorsement; confirm current CSLB status before signing.
- Listings selected from public company information showing ADU work or service in Long Beach.
- Default order follows the directory's fixed editorial order.
- Profiles show city-service and CSLB details only when linked sources and dated checks are on file.
- When active, Enhanced, Featured, and Verified placements appear before Basic listings and are clearly labeled.
- A visible Verified badge means license, insurance, and portfolio documents were reviewed. It is not a work-quality guarantee.
- Directory inclusion is not an endorsement. Dated license checks can change, so confirm current status with CSLB before signing.
3 Builders
John Christopher Construction
Source-backed details
Long Beach service: John Christopher Construction publishes a Long Beach-specific ADU builder page. Checked Aug 7, 2026.
CSLB #1001495: Current and active · B – General Building; C36 – Plumbing; C10 – Electrical · Checked Aug 7, 2026
License entity: John Christopher Construction Inc
Adar Builders
Source-backed details
Long Beach service: Adar's Long Beach service page includes accessory dwelling units among its local services. Checked Aug 7, 2026.
CSLB #1051859: Current and active · B – General Building · Checked Aug 7, 2026
License entity: Adar Builders Inc
LA Construction Compliance
Source-backed details
Long Beach service: LA Construction Compliance publishes a Long Beach ADU service page covering design through construction. Checked Aug 7, 2026.
CSLB #1047699: Current and active · B – General Building · Checked Aug 7, 2026
License entity: DHS Ventures Inc dba LA CCS
Are you an ADU builder serving Long Beach?
Paid plans add clearly labeled placement and expanded listing details. Verified badges require document review.
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Planning guide
California ADU costs
Compare scope, bids, permits, and utilities
Long Beach ADU Guide
Long Beach homeowners usually have the same four core ADU paths: convert existing space, build a detached backyard unit, add an attached unit, or create a JADU inside the main house. The best path depends on your lot, utilities, budget, and how quickly you want to get through permitting.
Garage conversion ADU
Detached backyard ADU
Attached ADU
JADU (inside main home)
ADU Rules
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Start with the current Long Beach ADU page, the city's ADU planning bulletin, and the California HCD ADU Handbook.
| Homeowner question | Current Long Beach check |
|---|---|
| Which rules apply? | Long Beach says it currently applies state ADU law directly while updated local regulations are in progress. |
| What size, height, and setbacks apply? | Use the current state-law path and confirm the site's details with Long Beach Planning before design. |
| Does historic status matter? | Yes. The current bulletin requires a Certificate of Appropriateness, while the city develops objective historic-design standards for a future ordinance. |
| Does Coastal Zone location matter? | Yes. The city says Coastal Zone properties need an administrative local coastal permit before building-permit review. |
| Can I submit the main ADU plan set online? | No. Long Beach says the ADU application and construction documents must be submitted in person at the Permit Center with a digital set on a USB drive. |
| Can I use a pre-approved plan? | Possibly for new construction. The city says its Pre-Approved ADU Program is undergoing changes, and the design still needs a site-specific submittal package. |
| Can the unit be a short-term rental? | No. Long Beach says ADUs and JADUs do not qualify for short-term rental registration. |
Choose the design path before asking for bids
- Custom new construction: Use the city's current ADU development standards bulletin to shape the unit around the lot type, allowable combination, size, height, setbacks, and any Coastal Zone or historic review.
- Garage conversion: Long Beach's Building and Safety ADU FAQ requires a complete construction plan set and an energy report. It also says a registered design professional may not be required when the work fully meets the city's prescriptive wood-frame provisions, so confirm that path before hiring one.
- Pre-approved plan: The city program is for new construction, not conversions. Long Beach says the program is undergoing changes, and the selected designer must prepare a site-specific package before permit review.
- Historic property: The current bulletin requires a Certificate of Appropriateness. Long Beach is also developing objective ADU design standards for historic resources for its future ordinance, so verify the rules in force before final design.
Cost Breakdown
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Long Beach does not publish one construction price that fits every ADU. Compare at least three itemized bids built from the same scope.
| Cost line | What to confirm |
|---|---|
| Property and concept | Zoning, legal structures, coastal or historic status, access, and feasibility. |
| Design and engineering | Architectural, structural, energy, civil, drainage, soils, and other site documents. |
| City review and permits | Planning, Building, coastal or historic review, corrections, and permits. |
| Utilities | Water-demand review, electrical capacity, meters, sewer and water routing, gas scope, trenching, connection work, and any separate permit package. |
| Site and structure | Demolition, foundation, grading, drainage, flood or soil work, and conversion reinforcement. |
| Construction and finishes | Labor, materials, fixtures, appliances, allowances, and owner-supplied items. |
| Exclusions and contingency | Unknown conditions, change orders, price-expiration dates, and excluded work. |
Permit Process
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A practical sequence
- Confirm the lot and ADU path with Planning. Use the current planning bulletin to check the lot type, unit combination, size, height, setbacks, and parking path.
- Choose custom, conversion, or pre-approved design. Match the design package to the site rather than comparing bids from different assumptions.
- Map utilities before final plans. Check water demand, meter and service needs, sewer routing, gas scope, electrical capacity, and trenching.
- Screen special reviews. Identify Coastal Zone and historic-property procedures and submit those applications with the building-permit package when required.
- Prepare the application and plans. Follow the city's current ADU intake steps and plan-review requirements.
- Submit the core ADU package in person. Bring the required permit application and a complete PDF plan set on a USB drive to the Permit Center.
- Respond to comments. The city assigns Planning and Engineering reviewers concurrently and provides an online plan-check status page.
- Pull permits, build, and schedule inspections. Long Beach issues approved permits in person and schedules building inspections online.
Resolve utility scope before the bid total
Long Beach Utilities says residential projects that add an ADU need a water-demand review. Confirm the proposed meter, service size, fire-sprinkler demand, and any backflow requirement before the drawings are treated as final.
The city's Building and Safety ADU FAQ says the permit-document path can change when an ADU connects to existing electrical, water, sewer, or gas infrastructure. If a new sewer connection is proposed, Long Beach Utilities requires a service drawing and review. Ask each builder's bid to identify shared versus new services, responsible agencies, permit packages, trenching, and excluded utility work.
Confirm timing with the city
Do not treat a plan-review estimate as an end-to-end project schedule. Eligibility work, design, special reviews, utilities, corrections, permit issuance, construction, and inspections each add project-specific time.
Rental Income
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Plan for eligible long-term use
Long Beach says ADUs and JADUs do not qualify for short-term rental registration. Use current long-term leases for comparable nearby units by size, bedrooms, privacy, parking, utilities, outdoor space, and condition.
Subtract vacancy, repairs, insurance changes, owner-paid utilities, management, and financing before estimating a return. Recalculate after final bids and plan review.
FAQs
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Which ADU rules does Long Beach use?
Long Beach says it currently applies California ADU law directly while it prepares updated local regulations.
Can I submit Long Beach ADU plans online?
No. The city says applicants must submit plans in person at the Permit Center with a digital set on a USB drive.
Do coastal or historic properties need extra review?
Yes. Historic properties need a Certificate of Appropriateness, and Coastal Zone properties need an administrative local coastal permit before building-permit review.
Can I use a Long Beach pre-approved ADU plan?
Possibly for new construction. The city says the program is undergoing changes, and each selected plan still needs a site-specific submittal package. Confirm the current designs and process before choosing one.
Which utility checks should I complete before an ADU design is final?
Confirm water demand, meter and service needs, sewer routing, gas scope, electrical capacity, and trenching early. Long Beach Utilities requires a water-demand review for residential properties adding an ADU, and the city may require separate permit documents when the unit connects to existing utilities.
Can a Long Beach ADU be registered as a short-term rental?
No. Long Beach states that ADUs and JADUs do not qualify for short-term rental registration.
How should I budget for a Long Beach ADU?
Compare at least three itemized bids with the same scope. Resolve utilities, coastal or historic review, site work, permits, and exclusions before relying on a total.
How are the listed Long Beach builders selected?
The directory uses public evidence that a company serves Long Beach. Inclusion is not an endorsement. Verify the builder's current California license, insurance, references, scope, and availability.
Long Beach official sources
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- Long Beach ADU overview
- Long Beach ADU planning bulletin
- Long Beach ADU and SB 9 ordinance status
- Long Beach Pre-Approved ADU Program status
- Long Beach Building and Safety ADU FAQ
- Long Beach historic-resource ADU design standards
- Long Beach Utilities water service review
- Long Beach Utilities sewer connection review
- Long Beach short-term rental rules
- California HCD ADU Handbook
Next step
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