| Table of Contents |
| 1. Introduction |
2. What Are Permit-Ready ADU Plans? |
2.1 Key Benefits |
| 3. ADU Plan Options in Riverside |
3.1 Architectural Styles Available |
| 4. Step-by-Step: How to Use Permit-Ready ADU Plans |
| 5. Why Riverside’s ADU Program Is Among the Best in California |
| 6. Cost Consideration |
| 7. FAQ |
As California tackles its housing crisis, Accessory Dwelling Units (ADUs) have emerged as one of the most effective and affordable solutions. In Riverside, homeowners can now benefit from Permit-Ready ADU Plans, which are pre-approved by the city and designed to fast-track ADU permit approval and construction.
Whether you're planning to create a rental unit, multi-generational housing, or a guest house, this blog covers everything you need to know about obtaining an ADU permit and building a permit-ready ADU in Riverside, California.
What Are Permit-Ready ADU Plans?
Permit-Ready ADU Plans are pre-designed and pre-approved architectural drawings that comply with Riverside’s zoning, safety, and building codes. These plans simplify the permitting process by reducing paperwork, shortening approval timelines, and eliminating design-related uncertainties.
Key Benefits:
Faster approvals (skip plan check delays)
Lower design costs (no need to hire an architect)
Guaranteed compliance with city codes
Multiple size & layout options
ADU Plan Options in Riverside
The City of Riverside offers four distinct floor plan options that suit a variety of property sizes and resident needs.
| Size | Bedrooms | Bathrooms | Ideal For |
|---|---|---|---|
| 746 sq. ft. | 1 | 1 | Singles, seniors |
| 800 sq. ft. | 2 | 2 | Couples, small families |
| 1,020 sq. ft. | 2 | 2 | Moderate family unit |
| 1,200 sq. ft. | 3 | 2 | Larger families, rentals |
Architectural Styles Available:
Craftsman
Ranch
Spanish
These styles are selected to match Riverside’s existing neighborhood aesthetics and ensure compatibility with primary dwellings.
Learn more about How to Get an ADU Permit in Riverside, California
Step-by-Step: How to Use Permit-Ready ADU Plans
Check Your Property Eligibility
Zoned for single-family residential (R-1, RE, RR, RC, RA-5)
Not in a FEMA-designated flood zone
Not a historical or cultural resource site
- Select a Pre-Approved ADU Plan
- Choose the layout and style that fits your lot and needs.
- Create a Site PlanUse MapRiverside to generate a basic plot of your property, showing where you’ll place the ADU.
Complete the Required Forms
Cover Sheet (T1.1)
Planning ADU Express Clearance Form
Hold Harmless Agreement
- Submit to the Permit PortalApply online via the City of Riverside Permit Portal with all necessary documents.
- Get Final ApprovalAfter a brief review, you’ll receive your building permit and can begin construction.
Why Riverside’s ADU Program Is Among the Best in California
Riverside has positioned itself as a leader in affordable housing innovation. Here’s why:
✔️ City-sponsored ADU plans save you thousands in design fees
✔️ Easy-to-navigate permit process
✔️ Access to professional contractors familiar with PRADU plans
✔️ Potential for rental income and long-term ROI
Cost Consideration
| Expense Category | Estimated Cost |
|---|---|
| Permit-Ready Plan | Free (City-sponsored) |
| Site Plan Drafting | $500 - $1,000 |
| Construction | $150 – $300/sq. ft. |
| Utility Hookups | Varies by location |
