ADU/JADU Information
** Advisory – Preapproved ADU Building Plans Will No Longer Be Available Starting in January 2023 **
The updated California Building Code will go into effect in January 2023, and the current portfolio of preapproved ADU plans will no longer be compliant with the updated Building Code starting in January 2023. Grant funds have been secured to update the plans with the updated Building Code. The preapproved ADU building plans are being updated and revised, and are estimated to be available by the Spring 2023. If you are planning to utilize one of the preapproved ADU plans, staff recommends submitting a site plan for review and approval in preparation for the re
*New* Pre-Approved ADU Plans available
Now including Two-Story Floorplan
We are happy to announce the City of Chico has a new two-story Accessory Dwelling Unit (ADU) pre-approved building plan that is now available to the residents of Chico free of charge. The new two-story plan is 599 square feet with a 1-bedroom residence above a 2-car garage and work/storage area. Please see the new plans at the ADU Catalog below that also includes 13 different single-story design styles and sizes available in reverse or flipped floor plans and ADA or universal accessible floor plans.
ADU Advisory for Properties on Septic and Wells
***Attention: All property owners on septic systems or wells need to check with the Butte County Environmental Health Department by clicking here for their website or calling (530) 552-3880 on the regulations and requirements that pertain to ADUs on septic systems or wells.***
Now Available – Pre-Approved ADU Plans!
With grant funds secured from the State Department of Housing and Community Development (SB 2 “Building Homes and Jobs Act”), the City had a series of ADU plans designed (13 design variations), plan checked and are now available “pre-approved” to the public for use…free of charge!