Perris ADU Permit & Building Guides
Building an ADU in Perris is an excellent way to maximize your property’s potential—whether you’re looking to create additional living space for family, generate passive rental income, or increase your home’s overall value. The City of Perris has established clear and flexible ADU regulations that make the process straightforward for homeowners, while still maintaining neighborhood character. Apex Homes helps simplify every step of the process, from feasibility and design to permitting and construction, so you can build with confidence.
ADU Regulations in Perris
Perris follows California’s state ADU laws while implementing local standards that define what can be built on both single-family and multi-family properties. For single-family lots, homeowners are allowed to build one detached or attached ADU and one Junior ADU (JADU). For multi-family properties, up to two detached ADUs may be constructed in addition to conversions of existing non-livable spaces.
Detached or attached ADUs in Perris may be up to 1,200 square feet or 75% of the size of the primary dwelling, whichever is less. JADUs are limited to a maximum of 500 square feet. Setbacks for side and rear property lines must be at least four feet, or follow the underlying zoning requirement if it is less restrictive. Front setbacks are determined by the property’s underlying zoning district.
Height limits for detached ADUs are flexible—an ADU may not exceed 16 feet above grade or the height of the first-floor ridgeline of the main dwelling, whichever is greater. Unit separation and distance requirements between structures are generally based on the property’s zoning standards; however, the city allows reasonable exceptions to ensure that ADUs up to 800 square feet in size, with a peak height of 16 feet, can still be built even on smaller lots.
These balanced regulations give Perris homeowners plenty of flexibility in both design and placement, making it easier to create high-quality, functional living spaces.
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The Perris ADU Permitting Process
To obtain an ADU permit in Perris, homeowners should first confirm their property’s zoning and review the city’s ADU standards. Selecting a compliant design—ideally one of the city’s pre-approved ADU plans—can help streamline the process. Once your design is selected, you’ll need to prepare complete submittal documents, including a site plan, floor plans, elevations, structural details, and Title 24 energy compliance documentation.
Applications are submitted through the Perris Building and Safety Division, and depending on project complexity, permits are typically issued within two to four months. After city review and approval, permits can be issued digitally, allowing you to begin construction promptly. Apex Homes offers full-service support, helping homeowners navigate zoning reviews, plan submissions, and construction with ease.
Pre-Approved ADU Plans in Perris
The City of Perris provides several pre-approved ADU floor plans that make it easier and faster for homeowners to move through the permitting process. These plans have already undergone review for building and zoning compliance, meaning only site-specific details—such as setbacks, utility connections, and lot slopes—need to be verified.
By choosing a pre-approved ADU layout, homeowners benefit from reduced design and engineering costs, shorter plan review timelines, and the assurance that their ADU meets all city standards. To view Perris’ current pre-approved ADU plans, contact the city’s Building and Safety Division or consult with the Apex Homes team for personalized guidance.
Why Build an ADU in Perris?
Perris is one of Southern California’s fastest-growing areas, making it a great place to build an ADU. Homeowners can earn steady rental income while increasing property value and creating flexible living options for the future.
ADUs in Perris are ideal for multigenerational living, offering private and comfortable space for parents, adult children, or extended family. The city’s clear ADU standards and straightforward permitting process make building simple and accessible for most homeowners.
Apex Homes builds ADUs throughout Perris and can guide you from design to completion. Schedule a free consultation with our team to learn how an ADU can transform your property.