Can I Build ADU in Long Beach, CA? (2026)
Find out if you can build a adu in Long Beach, CA. Rules, permit requirements, costs, and next steps.
Yes, ADUs are allowed in Long Beach, CA. California state law ensures by-right approval.
An Accessory Dwelling Unit (ADU) is a secondary housing unit on a residential lot — also called a granny flat, in-law suite, or backyard cottage. In Long Beach, CA, ADUs are permitted by right under state law, making them one of the most accessible ways to add housing on your property. ADUs can be detached, attached to the main home, or created by converting an existing garage or accessory structure.
ADU Rules in Long Beach
ADU Rules in Long Beach: Detached ADU max size: 1200 sq ft. Attached ADU max size: 50% of primary dwelling up to 1200 sqft. Junior ADU (JADU): up to 500 sq ft, within existing structure. Setbacks: 4 ft side, 4 ft rear. Owner-occupancy: Owner-occupancy requirement eliminated statewide January 1, 2020 per AB 68. Long Beach removed its previous local owner-occupancy requirement. Neither the primary dwelling nor the ADU is required to be owner-occupied.. State preemption applies: CA law requires Long Beach to approve compliant ADUs by right.
Costs & Fees
ADU permits in Long Beach: Total estimated permit cost: $2,000–$9,000 total permit fees. Contact the Long Beach Development Services — Building and Safety Bureau for current fee schedule.
Timeline
Long Beach Development Services processes ADU permits through the Permit Services Center. Ministerial approval within 60 days for compliant applications per state law. Standard ADU plan review: 3-6 weeks. Long Beach offers a Pre-Application meeting service for complex ADU projects. Construction typically 4-10 months.
Next Steps
Next steps for building an ADU in Long Beach: 1. Review full ADU rules including size limits, setbacks, and parking. 2. Apply for an ADU permit through the Long Beach Development Services — Building and Safety Bureau at https://www.longbeach.gov/lbds/permits/. 3. Hire a licensed contractor familiar with CA ADU requirements.
Long Beach Development Services — Building and Safety Bureau
Phone: (562) 570-5416
Website: https://www.longbeach.gov/lbds/
Online Permits: https://www.longbeach.gov/lbds/permits/
Frequently Asked Questions
Can I build an ADU on my Long Beach property?
Yes. California state law requires Long Beach to allow ADUs by-right on all residential lots. You can build a detached ADU up to 1,200 sqft or a Junior ADU (JADU) up to 500 sqft within your existing home. No owner-occupancy is required. The city must issue a ministerial approval within 60 days for code-compliant applications. Apply through Long Beach Development Services at (562) 570-5416 or visit 411 W. Ocean Blvd.
Does my Long Beach beachfront or coastal property need a Coastal Development Permit for an ADU?
Properties within the California Coastal Zone (generally within one mile of the coastline, plus areas near Alamitos Bay and Colorado Lagoon) may require a Coastal Development Permit (CDP) in addition to a standard building permit. The CDP review is typically a 2-4 week ministerial process for ADUs that comply with the Long Beach Local Coastal Program. Contact Long Beach Planning at (562) 570-6194 or check the Coastal Zone boundary map to determine if your property is within the Coastal Zone before starting your ADU project.
What are Long Beach's short-term rental rules compared to LA City?
Long Beach's STR rules are somewhat more permissive than LA City's. Long Beach allows whole-home short-term rentals up to 180 nights per year (compared to LA City's 120-night limit), and the registration fee is $183 per year. Primary residency requirement applies — the property must be your principal residence. Long Beach's 13% Transient Occupancy Tax is collected by platforms like Airbnb automatically. Note that LA City's Home Sharing Ordinance does not apply in Long Beach — the two cities have separate and distinct STR regulations.
Is Long Beach in the Metro A Line (Blue Line) transit corridor for ADU parking exemptions?
Yes. Long Beach has three Metro A Line (formerly Blue Line) stations: Downtown Long Beach, 1st Street, and Pacific Station. Properties within one-half mile of these stations qualify for the ADU parking exemption under California Gov Code 65852.2(d) — no additional parking is required for the ADU. Long Beach Transit also operates bus rapid transit routes that may qualify for transit proximity parking exemptions. Use Google Maps or eTRAKiT to determine if your property is within the half-mile transit zone.
Does my Long Beach property have oil or gas rights issues that affect development?
Some Long Beach properties, particularly in the signal hill area and near the Thums oil islands, may have subsurface oil and gas rights encumbrances. Before major excavation or ADU construction, check whether your property has any oil well abandonments, seismic hazard disclosures, or methane gas seep hazards. The Long Beach Oil and Gas Department maintains records of active and abandoned wells. A Phase I Environmental Assessment is advisable for properties near historic oil production areas before major construction.
How do cottage food businesses work in Long Beach?
Long Beach is within LA County's jurisdiction for cottage food licensing. Under California's Homemade Food Act (AB 1616), you can sell non-potentially-hazardous homemade foods (baked goods, jams, candy, etc.) from your home. Class A permits allow direct sales with no revenue cap. Class B permits allow indirect retail sales up to $75,000 annually. Apply through LA County Environmental Health Services at ehservices.publichealth.lacounty.gov. Long Beach has active farmers markets at Bixby Park (Sunday) and Bluff Park (Wednesday) that welcome cottage food vendors.
What historic districts exist in Long Beach and do they affect my renovation plans?
Long Beach has 9 locally-designated historic districts including Bluff Park, Rose Park, Drake Park/Willmore City, Carroll Park, and Cal Heights. Properties in these districts require a Certificate of Appropriateness for exterior modifications visible from the street. The review is typically 2-3 weeks for minor alterations that follow the Secretary of the Interior Standards for Rehabilitation. Solar panels, ADUs, and major additions in historic districts may face additional design requirements. Check your property at longbeach.gov — search for 'historic preservation' to see the district boundaries.
Source: Long Beach Development Services — Building and Safety Bureau — Building Regulations. Last verified April 6, 2026. View source