Permit for ADU in Los Angeles

 Table of Contents
 1. What is an ADU?
2. ADU Types & Size Regulations
 3. Permitting Process
4. Fees & Incentives
5. FAQ

What is an ADU?

An Accessory Dwelling Unit (ADU) is a secondary housing unit located on the same lot as a primary residence. ADUs can be detached, attached, or converted from existing structures like garages or basements. An ADU permit is typically required to ensure the unit complies with local zoning, building, and safety regulations. These units offer homeowners additional living space, rental income opportunities, and contribute to addressing housing shortages.


ADU Types & Size Regulations

  • Detached ADUs: Up to 1,200 sq ft.

  • Attached ADUs: Up to 50% of the primary dwelling's size, not exceeding 1,200 sq ft.

  • Junior ADUs (JADUs): Up to 500 sq ft, located entirely within the existing home.

Minimum size for any ADU is 150 sq ft. Detached ADUs are limited to two stories. Setbacks must be a minimum of 4 feet from side and rear property lines. Parking requirements may be waived if the ADU is within a half-mile of public transit or if the property is located in a historic district.


Permitting Process

  1. Pre-Design Consultation: Engage with a licensed architect or designer to assess feasibility and design options.

  2. Plan Preparation: Develop detailed plans, including site plans, floor plans, elevations, and structural details.

  3. Permit Application: Submit plans to the Los Angeles Department of Building and Safety (LADBS) for review.

  4. Plan Check: LADBS reviews plans for compliance with building, zoning, and residential codes.

  5. Permit Issuance: Upon approval, obtain necessary permits to commence construction.

  6. Inspections: Schedule inspections at various construction stages to ensure adherence to approved plans.

Utilizing LADBS's Standard Plan Program can expedite the permitting process by using pre-approved designs.


Learn more about How to Get an ADU Permit in Los Angeles


Fees & Incentives

  • Permit Fees: Include plan check fees, permit fees, and potential impact fees.

  • Impact Fees: Waived for ADUs under 750 sq ft; proportional fees apply for larger units.

  • Incentives: Explore programs like the LA ADU Accelerator Program, which pairs homeowners with older adults seeking affordable rental housing.


FAQ

Can I build multiple ADUs on my property in Los Angeles?

Yes, homeowners can build one detached ADU and one Junior ADU, provided they meet all zoning and building requirements.

Are there any restrictions on the design of my ADU?

Yes, the ADU's exterior must match or complement the primary dwelling in terms of roofing, trim, walls, windows, and color palette.

Do I need a permit to convert my garage into an ADU?

Yes, a building permit is required for any conversion to ensure compliance with safety and zoning codes.

How long does the ADU construction process take?

The timeline varies based on design complexity, permitting, and construction factors. On average, the process can take several months to complete.

Check about Top ADU Permit Companies in California

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