We Build Accessory Dwelling Units

SnapADU specializes in designing & building accessory dwelling units (also known as ADUs, granny flats, casitas, guest houses, in law suites) in Greater San Diego. As general contractor, we handle the entire ADU home development process... from initial planning & budgeting, architectural design & engineering, permitting, to building your guest house. We work with both standard floor plans and customization. Our ADU design experience & construction techniques enable us to build ADUs that are economical & attractive.

With nearly a decade of custom home building experience and stellar client feedback as general contractors, we're excited to focus exclusively on ADUs. We're bringing all of our design, building, permitting, project management and customer service expertise to your ADU construction project. We're proud to offer our clients the best value ADU in Greater San Diego, including Oceanside, Carlsbad, Encinitas, Vista, San Marcos, Escondido, Fallbrook, Solana Beach, Del Mar, Poway, and surrounding areas in San Diego County.

We think about granny flats all day long and are ready to help you with your project!


We work with lenders who focus exclusively on ADU loans and who have vetted us as an approved ADU builder. We ensure you have the documentation you need to get funding.

Rental Support

Planning to rent out your ADU? We can help you with a design to maximize rent potential. We also partner with corporate housing companies who make great tenants for steady rental income.

Find Property

Looking to buy a property and build an ADU? We can help you assess feasibility & cost of adding an ADU to property so you can make an informed purchase decision & start planning.

Floor Plans

SnapADU 1BR/1BA 39×17 Long
1 Bed • 1 Bath • 663 ft2
SnapADU 2BR/1BA 28×27 Square
2 Bed • 1 Bath • 749 ft2
SnapADU 3BR/2BA 36×31 L-Shape
3 Bed • 2 Bath • 999 ft2

Featured ADU Tour

“The level of service and quality of work surpassed all my expectations. I’m so glad there are still companies who are focused on customer satisfaction.”

– Paul | Oceanside | August 2021

Where should I start?

There's a lot to consider when building a granny flat and we want to make it easier for you. Clients come to us at all phases of their ADU project... just starting out, ready to go and looking for a builder, or somewhere in between. Choose a path below to get started on the content most relevant to you.

I'm new to the ADU thing.

Just learning about ADUs? Wondering if an ADU makes sense for you? We can help you get up to speed on the relevant regulations & share what they mean for your ADU costs in San Diego.

I'm ready to build an ADU.

Ready to get a proposal for an ADU? You've come to the right place. We will look at your property specifics and prepare a proposal to design and build your ADU.

I'm considering ADU options.

Still thinking about ADU construction options? Not sure where to start in the design process? We'd be happy to talk feasibility & cost, plus walk you through the whole process.


From our Blog: How To Find An ADU Contractor

Check our our list of what to look for in ADU contractors, plus how to have a good experience building your ADU home... whether you build it yourself, hire a contractor, or something in between. Snap ADU has also been named to the top ADU builders in San Diego.

How to find a Good ADU Builder