Side-By-Side Duplex ADU for Rental Income in San Diego
Clairemont Drive, San Diego, CA
Homeowner Story: Generate rental income
Special Circumstance: Multiple ADUs
Expanding Investment Opportunities with a Duplex ADU
An investor saw the opportunity to enhance property value by building a duplex ADU — two attached, side-by-side, two-story Accessory Dwelling Units—on a multifamily lot in Clairemont, San Diego. The property sits in a prime RM-1-1 zone, making it ideal for this type of development.
Read more about adding ADUs to multifamily properties.
“The experience was exceptional. I’m a big believer in communication and I felt like SnapADU kept me informed every step of the way. The quality of the finished product seems great and the daily reports showed me that someone was always on top of the details.” – Ricardo P, Investor in San Diego
Smart Design and Structure
This custom duplex ADU was designed to creatively use the available space and maximize the buildable footprint in San Diego. Each unit spans 1,200 square feet across two stories and includes three bedrooms and two bathrooms.
Built in a townhouse-style layout, the ADUs are positioned side by side in one detached structure. They are completely separate from the existing duplex. This configuration preserves privacy while optimizing site layout and usability.
Read more about two story ADUs.
Key Features and Benefits of a Duplex ADU
Each unit was crafted with livability and efficiency in mind. The two-story layout maximizes usable living area without compromising parking or outdoor space. This design works especially well in urban settings where land is limited.
Moreover, this duplex ADU configuration supports San Diego’s urban development goals. It promotes higher density and efficient land use while meeting the rising demand for rental housing. The result is two well-appointed rental units that offer ample living space for tenants and strong income potential for the property owner.
Stay tuned for updates as we transform this investment vision into a lucrative reality!
Floor Plan:
Two Story Duplex 3BR/2BA 48×24 Long

Community:
The City of San Diego ADU Guide
SnapADU is a leader in the San Diego ADU market, with a portfolio that includes dozens of completed and ongoing granny flat projects. Our team’s in-depth knowledge of the city’s ADU regulations and our established relationships with local permitting offices streamline the process for our clients. We’re committed to leveraging our experience to navigate the complexities of each project, from initial design to final construction, ensuring that every ADU we build meets the unique needs of homeowners while complying with local guidelines.
Of note, San Diego promotes the building of more ADUs through the affordable ADU bonus program.
