Multigenerational Custom ADU in Poway
Riparian Road, Poway, CA 92064
Homeowner Story: Downsize to ADU
Video Tour
Homeowner InterviewThis beautifully crafted 1,472-square-foot custom ADU showcases a truly personalized living space designed specifically for the homeowner, Peter. Every finish was hand selected to reflect his style, while the high vaulted ceilings and open layout create an airy, inviting home. Thoughtfully built for accessibility, the ADU features wide doorways, spacious paths, and large zero-threshold showers to support Peter’s wheelchair use. Designed for multigenerational living, the ADU provides Peter with independence and privacy while keeping him close to his son, daughter-in-law, and their new baby in the main home.
“From the initial consultation, then the conceptualization, the design, the permitting, the construction, and the finish, SnapADU was the lead on a custom designed and built ADU (with separate meters), which is where I hope is my home for many years to come.” – Peter C.
Floor Plan:
Custom ADU Floor Plan
Community:
The Poway ADU Guide
Poway is unique because it is currently the only jurisdiction in San Diego County that allows detached ADUs larger than 1,200 square feet. Qualifying properties can build detached ADUs up to 1,500 square feet, provided the ADU does not exceed 50% of the floor area of the primary residence. This additional square footage creates opportunities for larger homes designed for multigenerational living, downsizing, or long-term rentals.
We’ve worked on a wide variety of ADU projects throughout Poway, including large ADUs approaching the 1,500 sqft limit, ADUs with garages, poolside ADUs, HOA properties, homes for aging parents, and rental projects.
Another local consideration is Poway’s emphasis on architectural compatibility. Unlike many jurisdictions, the City requires the ADU’s exterior design, roofing, siding, and trim to be consistent with the primary residence. This requirement should be considered early during the design process to avoid delays during plan review. Read more in our Exterior ADU Guide.
Poway ADU Permitting
Most ADU permits in Poway are approved within approximately 5 to 6 months after submission. Poway requires in-person permit submissions and soils reports for ADU projects, both of which can add time and cost during design & permitting. The City will also require a floor plan of the existing residence to confirm that an attached ADU does not already exist on the property.
Permit costs generally range from approximately $4-8 per square foot, though larger ADUs may be subject to additional fees. Impact fees are not waived for ADUs larger than 750 square feet and are assessed proportionally based on the size of the primary residence.
While Poway is not located within the Coastal Zone, many properties are located within fire hazard areas. Depending on the location of the property, additional fire-related requirements may apply during design and permitting.
