Jean-Prescott Studio

Step-by-Step Guide to Adding ADUs Under SB9

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Step-by-Step Guide to Adding ADUs Under SB9

At Jean Prescott Studio, we help homeowners and developers navigate the complex process of adding ADUs (Accessory Dwelling Units) or additional units to their properties under SB9 regulations. This guide outlines the essential steps for projects involving separate water and electrical meters, including all necessary architectural, engineering, and site preparation services.

Step 1: Architectural Plans and City Approval

The process begins with the creation of detailed architectural plans that comply with SB9 and local zoning regulations. These plans must be submitted to the city for approval. Jean Prescott Studio works closely with city officials to ensure your plans meet all requirements and are processed smoothly, minimizing potential delays.

Step 2: Site Survey and Soils Report

Before proceeding with construction, a site survey and soils report are essential steps:

  • Site Survey: A site survey determines the exact boundaries of your property and identifies existing features like utilities, structures, and any topographical challenges. This survey ensures that your project is properly aligned with property lines and local zoning regulations.

  • Soils Report: A soils report provides critical information about the ground conditions where your ADUs or units will be built. It assesses soil stability, compaction, and drainage to ensure that the foundation of the new units will be safe and secure.

Both the site survey and soils report are often required by the city to confirm that the site is suitable for new construction and that the foundation and structural designs will meet local building codes.

Step 3: MEP Engineering Services

MEP (Mechanical, Electrical, and Plumbing) engineering services are crucial for installing separate water and electrical meters for each new unit. These services ensure each unit has its own independent utility systems, compliant with SB9 regulations. Jean Prescott Studio will coordinate with professional MEP engineers to design efficient utility systems for your project.

Step 4: Structural Engineering Services

Structural engineering services are required to ensure that the new units meet safety standards. Whether you are adding new units to an existing structure or building standalone ADUs, structural engineers will confirm that the design and foundation are solid and compliant with building codes.

Step 5: Fire Safety and Solar Plan

Additional requirements, depending on city regulations, may include:

  • Fire Sprinkler Plan & System: Many cities require a fire sprinkler system for new ADUs or units. It’s important to check with your local planning department to confirm if this is necessary.

  • Fire Flow Test: A fire flow test ensures that there is adequate water pressure for fire suppression, especially important when adding multiple units to a property.

  • Solar Plan: If required, a solar plan ensures compliance with energy efficiency regulations. We can refer you to an MEP engineer for solar system design, as some cities mandate solar installations for new constructions.

Step 6: Utility Meters and Water Regulators

Each unit will need its own utility meters and regulators:

  • Electrical Meters: Separate electrical meters are typically required for each unit. We recommend contacting your city’s electrical department for details on installation requirements.

  • Water Regulators: Depending on your location, each unit may also need its own water regulator to ensure proper water flow and pressure. Jean Prescott Studio can assist in coordinating the installation of these systems.

Step 7: Permit Applications and City Fees

Navigating the permitting process is a crucial step. This includes submitting all required documents and paying any city fees associated with the project. The permit process can vary depending on the scope of the project and city regulations, so it’s essential to plan accordingly.

Total Project Considerations

By following these steps and securing the necessary reports and services, you can ensure a successful SB9 project. Jean Prescott Studio will guide you through every phase, from the architectural planning and site preparation to securing city approval and overseeing construction.

Need Help with Your SB9 ADU Project?

Jean Prescott Studio specializes in SB9 projects and ADU additions, including the installation of separate utility meters, site surveys, and soil reports. Contact us today to get started on your project and ensure a smooth process from design to final city approval.

Call Us Now And Get Your Free Quote

(949)-791-7178

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I had an excellent experience working. They were professional, responsive, and truly went above and beyond to meet my needs. The service was completed on time and exceeded my expectations. I highly recommend them to anyone looking for quality and reliable service. Thank you for making the process so easy and stress-free!

Токобеков Т

I have to make an ADU on my mom’s property. Kevin’s professional advice was invaluable. He understood that I had money constraints and instead of selling me, because I know zero about this process, he created a cost efficient way for me to move forward. He stated that whatever question I had in the future he would be available to help. I thank him for his honesty and all his help.

Gabriela D.

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(949)-791-7178

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949 791-7178

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