Welcome to the pre-approved Accessory Dwelling Unit (ADU) Program. This program allows architects, engineers, and draftsperson to submit ADU plans for preapproval for availability to the public. This program encourages using the pre-approved ADU to help expedite the process of issuing permits for ADUs.
Architects, Engineers, and Draftspersons
There is an application to participate in the program; this application can be found at the bottom of this page, or you may pick up an application at the Building Division counter.
The steps below are how to submit for the approval of the pre-approved ADU
- The pre-approved ADU shall comply with the current California codes.
- Submit a complete plan with all supporting documents for plan review. Additional plans may be requested once the review starts.
- For fire sprinkler approval, the plan and application will require a separate fire sprinkler plan to be submitted and routed for review and approval.
- Options to the plans will be limited to four options per ADU plan set.
- Once the plans are approved, the Architect/Engineer/Draftsperson shall supply the floor plan and elevations sheets to the Building Division so we can place them on the City of Rio Vista Building Web Page. The website will also contain the architect/engineer/draftsperson’s contact information.
- The customer will contact the Architect/Engineer/Draftsperson to obtain permission to use the pre-approved plans.
- The Architect/Engineer/Draftsperson shall provide a completed release and waiver form via email to buildingpermits [at] ci.rio-vista.ca.us (buildingpermits[at]ci[dot]rio-vista[dot]ca[dot]us). The e-mail shall have the customer’s name and contact information with the pre-approved accessory dwelling unit identification number, and which options will be used.
Although plans are pre-approved there is still a need to submit a Building permit application, authorization from the creator for use of the plans, and a site-specific site plan/plot plan for verification of placement on the lot. If you have any questions related to site placement standards, please contact the Planning Division.
General ADU information can be found here