Pomona ADU Permit & Building Guide
Building an ADU in Pomona is a smart way to add value, create passive rental income, or provide flexible living space for family. With clear city guidelines and the potential for pre-approved ADU designs, homeowners can move from planning to construction with fewer delays and a smoother approval process. Apex Homes helps streamline your project with expert feasibility studies, design support, and full construction management.
ADU Regulations in Pomona
Pomona follows California’s state ADU laws but includes its own local standards that determine what can be built on single-family and multi-family lots. For single-family properties, homeowners are allowed to build one detached or attached ADU and one Junior ADU (JADU). The maximum size for a JADU is 500 square feet. Detached or attached ADUs can be up to 1,000 square feet if the lot is smaller than 7,200 square feet, or up to 1,200 square feet for lots that are 7,200 square feet or larger.
On multi-family properties, owners may construct up to two detached ADUs and can also convert existing non-livable spaces such as garages or storage areas into new dwelling units. Setback requirements include four feet from both the side and rear property lines, while front setbacks depend on the property’s zoning designation. Detached ADUs may be built up to 18 feet in height, and attached ADUs may reach up to 25 feet. Each detached ADU must be located at least 10 feet from the primary residence and six feet from any other accessory structure, such as a garage.
These standards are designed to provide flexibility while maintaining neighborhood character, making ADUs a practical and accessible option for many Pomona homeowners.
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The Pomona ADU Permitting Process
To get an ADU permit in Pomona, homeowners should begin by confirming their property’s zoning and selecting a design that meets city requirements, ideally one of Pomona’s pre-approved ADU plans, which can greatly shorten the approval process. Once a compliant design is selected, applicants must prepare a complete set of documents including a site plan, elevations, floor plans, structural details, and Title 24 energy compliance reports.
All applications are submitted through the Pomona Permit Center, and the city typically reviews ADU applications within two to four months. Choosing a pre-approved plan can reduce review time significantly. After the plans are approved and all fees are paid, permits are issued digitally, allowing construction to begin without unnecessary delays.
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Pre-Approved ADU Plans in Pomona
Pomona offers several pre-approved ADU designs that make it easier and more affordable for homeowners to build. These plans have already been reviewed and approved by the city for compliance with building codes and zoning regulations. Homeowners only need to confirm site-specific details, such as utility connections and property setbacks, before proceeding. Pre-approved plans help reduce architectural and engineering costs while ensuring faster permit approval.
To learn more about the city’s pre-approved ADU options, homeowners can contact Pomona’s Building and Safety Division or work with Apex Homes to select the best fit for their lot and goals.
Why Build an ADU in Pomona?
Pomona’s strong housing demand and central location make it an excellent place to build an ADU. Homeowners can create additional living space that generates steady rental income and boosts long-term property value.
ADUs in Pomona also offer flexibility for families who want to live closer together. Whether for parents, adult children, or guests, these units provide privacy and independence while staying connected.
With clear city guidelines and a simple permitting process, building an ADU in Pomona is easier than ever. Apex Homes builds ADUs throughout the area and can help you get started with a free consultation to explore your property’s potential.