If you’re a homeowner in Walnut Creek looking to boost your property value, create additional income, or add space for extended family, building an Accessory Dwelling Unit (ADU) is one of the smartest moves you can make right now. And thanks to the City of Walnut Creek’s Pre-Reviewed ADU Program (PRADU), the process just got faster and more affordable.
As a local Walnut Creek real estate agent, I work with many homeowners and buyers who are exploring how to leverage ADUs to maximize their investments. Here’s everything you need to know about the city’s PRADU program and how you can take advantage of it.
What is a Pre-Reviewed ADU (PRADU)?
The City of Walnut Creek offers pre-reviewed, permit-ready ADU plans that streamline the design and permitting process. These plans have already been reviewed for compliance with California Residential Code and Title 24 energy regulations, meaning less time waiting and less money spent on architecture and engineering.
Available Pre-Reviewed ADU Plans
Walnut Creek offers four detached ADU designs, all built on permanent foundations and fully equipped with kitchens and bathrooms:
- Plan A – Compact Studio (408 sq ft)
- Plan B – 1 Bedroom (615 sq ft)
- Plan C – 1 Bedroom (672 sq ft)
- Plan D – 2 Bedroom (796 sq ft)
These plans allow Walnut Creek property owners to quickly move forward with construction while staying compliant with local zoning and building requirements.
Step-by-Step: How to Use Walnut Creek’s PRADU Program
1. Confirm Your Property is Eligible
- Your property must be within the Walnut Creek city limits
- Homes located in flood zones (except Zone X) or on sloped lots over 5% are not eligible for PRADU plans
- Use the city’s zoning map and FEMA’s flood map tool to check your status
2. Review Plan Options and Your Buildable Area
- Determine your budget and site size
- Larger ADUs (Plans C and D) require solar panel installation, which means you’ll need a separate solar permit
- Check your parcel map and title report to avoid easements and unbuildable areas
3. Select Your Plan and Prepare the Application
- Download your chosen ADU plan
- Create a site plan using the city’s template
- Fill in the cover sheet with material selections
- Combine all required documents into one PDF
4. Submit Your Building Permit Application
- Submit your completed plan set, application form, and liability waiver
- Visit the city’s permit page to complete your submission online
5. Final Approval and Construction
- Pay permit fees and obtain any necessary approvals from school districts, the Fire District, and Sanitary District
- Once approved, you’ll receive your permit and construction can begin
- After completion, the city will assign a new address to the ADU (e.g., 123A Main St)
Why Build an ADU in Walnut Creek?
As a seasoned Walnut Creek Realtor, I can confidently say that homes with ADUs are in high demand. Whether you’re considering adding an ADU to generate passive rental income, support multi-generational living, or boost your home’s resale value, now is the time.
Benefits of building an ADU in Walnut Creek include:
- Increased home value
- Flexible use of space for rental or guests
- Potential rental income
- Future-proofing your investment
Work with a Local ADU-Savvy Realtor in Walnut Creek
Navigating permits, zoning, and construction timelines can feel overwhelming, but you don’t have to go it alone. As a local Walnut Creek real estate expert, I help homeowners evaluate how an ADU fits into their overall property goals—whether you’re upgrading your primary residence, investing in rental income, or preparing to sell at top dollar.
If you’re curious how adding an ADU might affect your home’s value or want help starting the process, I’m here to guide you every step of the way.
Contact me today to discuss your goals and see how you can take full advantage of Walnut Creek’s Pre-Reviewed ADU Program.
