How to Get an ADU Permit in Los Angeles
Why ADUs are Becoming Popular in California
California’s housing market has been challenging for many homeowners, with high real estate prices and limited available properties. According to the California Department of Housing and Community Development, ADUs have become an attractive option, offering a more affordable alternative for families, renters, or homeowners looking to maximize their property. The state's new regulations also streamline the permitting and construction processes, making it easier to build an ADU.
ADUs are perfect for multi-generational living, allowing family members to stay together while maintaining privacy. Additionally, building an ADU can increase property value, making it a smart investment.
Step-by-Step ADU Permit Process in Los Angeles
1. Check Zoning & Property Eligibility
Confirm that your property complies with ADU zoning regulations through LADBS and ZIMAS (Zoning Information and Map Access System).
2. Choose Your ADU Type
Decide between detached, attached, garage conversion, or a junior ADU. Your lot size and layout will guide your options.
3. Hire a Designer or Architect
Work with a licensed professional who understands Los Angeles building and safety codes to draft plans that meet requirements.
4. Submit Plans to LADBS
Apply through the Los Angeles Department of Building and Safety using their online portal. Include structural plans, energy compliance documents, and fire safety details.
5. Undergo Plan Check Review
Your submission will be reviewed for zoning, building code, and fire code compliance. If eligible, your project may qualify for fast-track review under state and local ADU laws.
6. Obtain Permits and Start Construction
Once approved, pull the necessary building permits and begin construction legally and safely.
Benefits of Building an ADU in Los Angeles
- Increased Property Value: Adding an ADU to your property can significantly increase its market value.
- Rental Income: If you’re looking to generate income, an ADU can serve as a rental property, providing steady cash flow.
- Sustainable Living: ADUs can be designed with energy-efficient features, making them more sustainable and eco-friendly.
- Flexibility: Whether you need extra space for a guest house, office, or studio, an ADU offers versatility.
- Easier Permitting Process: With California’s new zoning laws, obtaining permits for ADUs is simpler and faster than ever before.
How Much Does an ADU Permit Cost in Los Angeles?
| ADU Type | Estimated Cost |
| Prefab ADU | $40,000 – $120,000 |
| Stick-Built ADU | $120,000 – $250,000 |
| Garage Conversion | $60,000 – $120,000 |
| New Construction (1,200 sq. ft.) | $180,000 – $360,000 |
| High-End ADU | $450,000+ |
