Home Additions & ADUs in San Diego
Rice Design & Build provides contracting services for those who want a turn-key, tailored approach to additions and Accessory Dwelling Units (ADUs). Our strength is design-focused builds — you have a dream for your property, let us guide and shape the process as it comes to life. Contact us for more information.
"They guided us through every design choice, from material selections to furniture and accessory product choices, ensuring each element fit perfectly within our vision. Highly recommend Rice Interiors for anyone looking to elevate their home with professionalism, expertise, and a touch of artistry."
Remodel + Design / Allison E.
Home Additions and ADU Projects
View our portfolio of interior design projects — making each space a true reflection of it’s residents.
Frequently Asked Questions
Find answers to frequently asked questions about our Interior Design.
What does Design-Build mean?
Our general contracting and new home building services are design-led, meaning we are involved with the planning, building, and final vision. While you don’t have to use us as an interior designer, it’s part of our expertise and we always lend our perspective to project — ensuring layouts flow well, lighting plans are optimized, and details are well-thought-out.
How much does aN ADU in San Diego cost?
ADUs may be small in size, but the detail that goes into making them a seamless and complementary part of your property means it’s still a big project. In San Diego, the cost of building a custom, turnkey ADU construction usually starts at $250 a square foot.
What is your preferred style for home additions and ADUs in San Diego?
Our design expertise is diverse and our results are tailored to your preferences. We don’t specialize in one single home style. However our projects are guided by the distinctive essence of Southern California style.
For ADUs, we’ll take into account your vision and goals, while also striving to create a space on your property that is cohesive and compliments your existing home and landscaping.
For home additions, we’ll work with your existing space and your unique taste & preferences to customize your design, making the new expansion feel like it’s original to your home.
Do you provide interior design services for ADUs?
We do! Our design-led process incorporates a thoughtful perspective on interior design. Beyond that, we provide full comprehensive interior services like furniture selection, lighting design, colors, and textiles as well.
How customized is your ADU and ADdition building process?
Our builds are customized to your taste, preferences, and lifestyle requirements. Our process is also tailored to your goals. When we begin collaborating, we start with a discovery and concept phase to understand your goals, priorities, and how
you use your space. This informs the rest of your ADU build or home addition process.
Why Rice Design & Build
We deliver a refreshingly transparent design and remodeling experience rooted in craftsmanship and guided by your vision.

Professionalism & Attention

Clear Communciation
We’re known for prompt responses and clear updates, meaning you’ll never wonder what the status of your project is. We provide transparency to give you confidence at every stage.

Thoughtful, Tailored Process
Our process is structured into clear phases, making it easy to collaborate. We offer everything from interior design-only to full design-build services. Unlike a typical GC who sends clients to pick materials themselves, we lead with a design-first approach — creating cohesive, beautiful spaces that enhance your lifestyle and home value.

Local San Diego Experience
We’ve got experience: from our personal home-building journey to the projects we’ve led around San Diego. Construction isn’t our only passion, though. We’re involved members of the community through nonprofits like the Boys and Girls Club.