San Diego’s Leading ADU Home Builder.
We make it effortless to add an ADU. Our team expertly handles every detail from design, permits, and through construction… so you can stay focused on what you do best. With 100+ design build ADU projects completed, we deliver predictable results through clear communication, disciplined systems, and genuine accountability. Proudly woman-owned and trusted across San Diego.
ADUs Built & Under Construction Across Greater San Diego
Explore Greater San Diego ADU Projects.
As an all-in-one ADU design build contractor, our portfolio ranges from standard, efficient designs to expansive, custom ADU projects. Our in-house design team tailors plans to your unique needs, and our construction team ensures your project stays on budget. Whether you’re interested in a small backyard cottage, a large guest house, a two-story ADU, or multiple units, we are well-equipped to bring your vision to life.
The Most Trusted ADU Contractor in San Diego.
With over 100 ADUs designed and built across San Diego, we’re trusted by homeowners for our unmatched expertise in navigating design, permits, construction, and warranty follow-up well after the build is completed.
“I’m so impressed. There’re some very smart and trustworthy people on this experienced team. I feel lucky I’m working with them. My ADU is looking great.” – Alice Xu, Carlsbad Homeowner
How Local Homeowners Are Unlocking Their Property’s Potential.
Interest in San Diego ADU projects has surged, with residents eager to unlock their property’s full potential. ADUs serve various needs, from generating rental income and accommodating family members to providing versatile flex space. Discover how our clients have transformed their properties with an ADU home.
Zach Adamson
Encinitas Homeowner
“An ADU is a really great opportunity for additional income. We started to do our research, and it seemed pretty obvious that SnapADU was the leader in the market. It was so hands-off, and then there was this beautiful home in my yard… it was unbelievable.”
The Heard Family
Oceanside Homeowners
“We needed grandma to be around for the baby, and we wanted to be around for Dianne when she gets older. We chose to work with Snap because the info was the most upfront. Working with Snap was just painless & easy. The finished product is phenomenal.”
Malka Nagel
San Diego Investor
“I built an ADU before on my own home, this particular ADU is on a rental property. I needed a company that could do everything from end to end. I don’t live in the area, and all I did was write the checks. It was one of the most organized builds I’ve ever seen.”
The Evans Family
San Marcos Homeowners
“We didn’t want anything that looked prefab… we wanted something that fit with the aesthetic of the vineyard. I’d definitely recommend SnapADU. They were communicative, transparent, and overcame any challenges that came up during the process.”
Mylinh Arnett
San Diego Homeowner
“We decided to build an ADU for my mom. I was very overwhelmed. Then I found out about SnapADU through a neighbor. I think it’s great to have a company that does the whole process from start to finish. It takes out the stress that comes with construction.”
Liz Ream
Vista Business Owner
“I decided to build an ADU because my product styling business was taking off. As soon as we got the keys, the property value grew much more than the cost of the ADU. I really appreciate their project management. They treated me like they cared about me.”
Search ADU Floor Plans.
Be inspired by a variety of ADU floor plans from our library. Starting with a plan that has been built before can help speed up the design process. We also offer custom ADUs and can modify any plan or start with your own drawings. Our in-house ADU designers ensure your floor plan & elevations work with the rest of your property constraints and can be permitted with the city.
Size of unit:
Beds:
Baths:
Stories:
Need a custom ADU floor plan?
Your One-Stop-Shop for ADUs.
SnapADU is your one-stop-shop for all your ADU needs. As the leading ADU builder in San Diego, we provide a comprehensive, turnkey solution for homeowners looking to add value and space to their property. Our expertise as an ADU contractor ensures that every detail is meticulously planned and executed, offering unmatched accountability.
Feasibility & Budget
Can you build a guest house on your property? How much will it cost? We are ready to dive into your accessory dwelling unit project goals so we can answer questions and get into costs and timeline right away.
ADU COSTS
Design Selections
Our curated interior & exterior ADU designs create a cohesive look for your accessory home project. Choose from our catalog of styles, or work with our ADU designers to create a custom floorplan.
ADU DESIGNS
Architectural Plans
We’ve created many build ready ADU designs to maximize space utilization & construction efficiency… so you get more out of your budget. We can also customize ADU house plans to fit your unique needs.
ADU PLANS
Construction
As an ADU builder, we handle the entire construction process, from breaking ground all the way to the final walk-through to make sure your guest home exceeds your expectations and is built to last.
BUILD PROCESS
Rental Support
Planning to build your accessory dwelling unit to rent? Check out how to plan for the best ADU design build to maximize rent potential.
ADU RENTAL GUIDE
Permit Processing
We prepare all plans and paperwork for submission to the municipality. Our own employees work with the town to ensure your ADU plans swiftly pass through required plan check and permitting processes.
LOCAL ADU REGULATIONS
Project Management
Our systems and processes keep your ADU design build job running smoothly and give you visibility on progress with our schedule. You can view documents, make approvals, and pay invoices right from your phone or computer.
PROJECT MANAGEMENT
Find Property
Looking to buy a property and build an additional accessory unit? We can help you assess feasibility & cost of adding an ADU house to property so you can make an informed purchase decision & start planning.
ADU Investments
Feasibility & Budget
Can you build a guest house on your property? How much will it cost? We are ready to dive into your accessory dwelling unit project goals so we can answer questions and get into costs and timeline right away.
ADU COSTS
Architectural Plans
We’ve created many build ready ADU designs to maximize space utilization & construction efficiency… so you get more out of your budget. We can also customize ADU house plans to fit your unique needs.
ADU PLANS
Permit Processing
We prepare all plans and paperwork for submission to the municipality. Our own employees work with the town to ensure your ADU plans swiftly pass through required plan check and permitting processes.
LOCAL ADU REGULATIONS
Design Selections
Our curated interior & exterior ADU designs create a cohesive look for your accessory home project. Choose from our catalog of styles, or work with our ADU designers to create a custom floorplan.
ADU DESIGNS
Construction
As an ADU builder, we handle the entire construction process, from breaking ground all the way to the final walk-through to make sure your guest home exceeds your expectations and is built to last.
BUILD PROCESS
Rental Support
Planning to build your accessory dwelling unit to rent? Check out how to plan for the best ADU design build to maximize rent potential.
ADU RENTAL GUIDE
Find Property
Looking to buy a property and build an additional accessory unit? We can help you assess feasibility & cost of adding an ADU house to property so you can make an informed purchase decision & start planning.
ADU Investments
Project Management
Our systems and processes keep your ADU design build job running smoothly and give you visibility on progress with our schedule. You can view documents, make approvals, and pay invoices right from your phone or computer.
PROJECT MANAGEMENT
ADU Design Ideas
ADU Interiors
ADU Exteriors
SnapADU employees
Full accountability. ADU Expertise. Proven results.
Top ADU Contractor in San Diego County.
Our own team is responsible for delivering on our promises, from the first time you contact us to the time we hand you the keys to your new ADU home.
As deeply experienced ADU contractors, we anticipate pitfalls that less seasoned or less integrated teams will miss. The volume of ADU projects we handle means we have unrivaled expertise that we are excited to bring to your project.
We’re 100% focused on being the best ADU builders in San Diego County, and we take pride in the personal touch our in-house team brings to every project. We are proudly woman-owned, family-operated, and a BBB A+ rated contractor.
Watch our ADU 101 Webinar
Thinking about building an ADU and want to learn more about the whole process? We’d love to help make sure you know exactly how it all works in our on-demand webinar led by SnapADU co-founder, Whitney Hill. Learn the top insights from an experienced ADU contractor in San Diego.
Where should I start on my ADU?
I'm new to the ADU thing
I'm considering options
I'm ready to build an ADU
Why choose a design build ADU contractor?
You may be wondering if you should start with an ADU consultant, designer, architect, general contractor or ADU builder. The difference with a true design build ADU construction company is that the same company and team of people will be responsible for designing and permitting an ADU house that can also be built on budget. Incentives are fully aligned with the client; the entire guest house project must be a success and run as quickly as possible.
Our approach, distinct from prefab ADU providers, is tailored and flexible. We use traditional “stick-built” construction methods, ensuring a custom fit for your property’s unique needs, something prefab often can’t match. And our focus on ADUs in San Diego means that we have deep expertise that allows us to advocate for homeowners, saving thousands.
How to find top ADU contractors near me?
ADU Contractor Serving Greater San Diego
Prefab ADU vs. Stick Built
Comparing ADU Construction Options in San Diego
We are ADU Builders.
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 a licensed general contractor, we take responsibility for the entire design, permit and build process for accessory homes. We want to provide the predictability you need on your highly specialized project of building a backyard accessory dwelling unit. We bring ADU design build all under one roof to ensure accountability for the whole process.
We work with both standard and custom ADU floor plans. We build for multigenerational living and for investors. Our team of employees are responsible for each step, from initial planning & budgeting, feasibility & design, plan check & permitting, and building your guest house. This means we can offer a price lock within the first few weeks of your project.
With over a decade of custom home building experience and stellar client feedback as ADU builders, we’re excited to focus exclusively on accessory dwelling units. We’re bringing all of our expertise to your ADU construction project, which means we will look at the entire ADU cost from day 1.