Step 2: Prepare Plans

1. Hire Your Design Professionals
To begin the construction process, your proposed rebuild project will need to be accurately defined in detail by preparing design plans. These plans need to be prepared by a design professional. A California licensed architect or engineer may be required to prepare the design plans.
- For complex soil conditions, foundation/site work, or structural designs, detailed engineering may also be necessary to support the proposed design. It is your choice to determine who you hire to prepare your plans.
- Pre-approved plans are another option to help homeowners rebuild more efficiently, safely, and affordably.
- Pre-approved plans typically have a reduced and predictable review process, allowing property owners to move forward even faster with rebuilding.
- If your property is served by an Onsite Waste Treatment System (OWTS) you are required to have an evaluation of the onsite wastewater treatment system (septic system) conducted by a qualified contractor. This evaluation will determine if the system is in good working order and will confirm the number of bedrooms that the septic system can support.
- If you elect to build anything other than the original permitted structure, you may need to hire a qualified professional to conduct soil testing and design a new OWTS.
Need help getting started? Los Angeles County, in collaboration with the Contractors State License Board (CSLB), has developed a publicly accessible database of licensed professional engineers, architects, and contractors which can be accessed here.
Below are some helpful resources:
2. Prepare Plans
Once you have selected your design professional, the design and preparation of plans begin. Design plans must comply with the current Los Angeles County Building Codes. LA County permitting staff are here to assist you and your design professional as your plans are prepared
3. Need Help? Visit a One-Stop Permitting Center
One-Stop Permit Centers have been established in Altadena and Calabasas to connect residents with qualified professionals who offer personalized support throughout the rebuilding process. Walk-ins are welcome, and consultation appointments can be scheduled at either location.
LA County permitting agencies, including Fire Department, Regional Planning, Public Health, Geotechnical and Materials Engineering Division and Public Works Building and Safety, are available by appointment to guide property owners and their representatives through the rebuild process and answer any questions. At One-Stop Centers, residents can get expert advice on preparing plans for their rebuild project, obtaining permits for construction and more.
Southern California Edison (SCE) Planners and Billing Service Representatives are also available by appointment to assist customers in their service areas.
- 464 W. Woodbury Road, Suite 210, Altadena, CA 91001.
- Monday through Friday, 8 am to 4:30 pm
- 27001 Agoura Road, Suite 250, Calabasas, CA 91302.
- Wednesday, 7:00 am – 11:00 am