ADU - Accessory Dwelling Units
What is an ADU?
Granny flats, in-law suites, backyard cottages, and converted garages—known as accessory dwelling units (ADUs)—are smaller, self-contained homes on the same property as the main house. Ranging from 220 to 1,200 square feet, ADUs include essential features like a kitchen, bathroom, and sleeping area. They offer an affordable housing option without the need to buy additional land, and recent changes in laws are making ADU construction faster and easier.
Can I build an ADU on my property and what else do I need to do?
Contact Planning to find out answers for your specific property. Your ADU may still have to meet certain building requirements i.e. fire, solar, and septic. For more information, please contact your local agencies and review the California ADU Handbook.
View ADU Plans
Unincorporated El Dorado County ADU Plans Gallery
Please note that these are only Floor/Architectural Plans. Please view ADU Plan Submittal Requirements for more information on permit submittal requirements. Properties located in Historic, Medium or High Fire Hazard and Flood Zones, or near Airports, may require additional reviews/documents.
El Dorado County's Pre-Reviewed ADU Plan Program
(PDF, 5MB)
El Dorado County's Accessory Dwelling Unit (ADU) Plans Program offers a ready-to-use ADU design to help reduce permit costs. This downloadable plan complies with California Building Code and local standards.
Users must prepare site-specific plans (e.g., solar design, fire sprinklers) and sign a Hold Harmless Agreement. No modifications to the plans are allowed.
Pre-Reviewed ADU Documents & Required Forms
AB 2234 Samples
AB 2234 requires local jurisdictions to publish an online checklist for applications to be deemed complete and maintain this checklist online for the public. An ideal application sample must be included in this checklist, which developers can then use as a reference. AB 2234 will apply to nearly all post-entitlement, residential permits issued by an agency under the control of the local jurisdiction, excluding utilities, special districts, and the Coastal Commission.
Examples of an Ideal Application and Required Detail Information
Application and Detailed Lists Specifying Information Required for Submittal of Post Entitlement Permits