City program

Pre-Approved ADU Plans in Riverside, California

Browse official and accepted pre-approved ADU plans for Riverside, California. Compare plan size, bedrooms, providers, approval status, official source links, permit requirements, and fees.

Program status: source-backed listings Last checked May 4, 2026

Summary

Location
Riverside, Riverside County, California, USA
Accepted plans
4 accepted plans
Providers
1 provider
Origin programs
1 program
Plan size range
746 to 1,200 sq ft
Permit sources
8 sources

How to use this page

  1. Pick a plan size and bedroom count.
  2. Check whether the plan originated locally or is accepted from another city/county program.
  3. Open the official source.
  4. Confirm current status with the local building department.
  5. Ask the provider what site-specific work, plan licensing, engineering, and utility review are still required.

Accepted Plans

4 plans

Permit Requirements

13 requirements

All

Cultural Resource Restriction

Official city source

Project site cannot be designated/eligible as Cultural Resource per Title 20 of Riverside Municipal Code

Last checked
May 4, 2026
Notes
Verify via Historic Resources Viewer. Historic properties have separate ADU design standards.

All

Photovoltaic (PV) System

Government PDF

Required deferred submittal; must be installed, operational, and final prior to occupancy

Last checked
May 4, 2026
Notes
Title 24 PV requirement applied via deferred submittal in pre-approved plans.

Fees

3 fee records

Official Sources

8 sources

Riverside ADU FAQ

6 answers

Does Riverside have accepted or pre-approved ADU plans in this directory?

Yes. The current Riverside, California page lists 4 accepted plans from 1 provider in the source-backed export.

What ADU plan sizes are listed for Riverside?

The listed Riverside plan records range from 746 to 1,200 sq ft. Use the individual plan cards to confirm bedrooms, bathrooms, plan documents, and provider details because some fields are not listed by every official source.

Where do the Riverside ADU plan records come from?

They are tied to 8 official sources in this page's source set, including City of Riverside Community & Economic Development Department, City of Riverside / Design Path Studio, and City of Riverside Planning Division. Each plan, fee, and permit note should still be checked against the linked official source before use.

Can Riverside County or nearby city ADU plans be used in Riverside?

The current Riverside records do not show accepted plans from a separate Riverside County or nearby city program. Treat outside pre-approved plans as unavailable in Riverside unless an official Riverside source says they are accepted.

Do pre-approved ADU plans guarantee permits in Riverside?

No. A source-backed accepted plan can reduce plan review work, but Riverside can still require site-specific review, zoning checks, fees, utility coordination, and current code compliance. This page lists 13 permit requirements to help flag items to verify with the local building department.

Are Riverside ADU permit fees and requirements listed?

This page includes 3 fee records and 13 permit requirements for Riverside. These are source-backed summaries, not a final permit quote or approval checklist.