ADU Universal Checklist

• Are you thinking about building an ADU, JADU, or THOW?* If yes, be sure to use this checklist to learn if your lot qualifies for an ADU and if your project concept complies with City zoning and fire codes. Property owners and design professionals: Avoid having to make costly changes to plans by closely following the directions and standards outlined in this checklist. 

• We’ll help! Share your completed checklist and a sketch of your proposed ADU with a City planner for basic feedback. To obtain feedback, see the ADU Plan Review & Permit Process webpage and review HCD Handbook Checklist. 
• *ADU - Accessory dwelling unit, also called a granny flat, secondary unit, or backyard home. May be attached to or detached from the main home. May also be a conversion of a garage or basement. 
• *JADU - Junior accessory dwelling units are built within the existing footprint of a single-family home. An attached garage may be converted into a JADU. Owner-occupancy of the main home is required. 
• *THOW - Tiny home on wheels. THOWs are a prefabricated type of ADU mounted on a trailer chassis and have their own checklist; view Bulletin #291-Tiny Home on Wheels Permit Checklist. Find more details on types of ADUs and ADU requirements at www.sanjoseca.gov/ADUs and San José Municipal Code Part 4.5.

Please find the ADU Universal Checklist attached below: