San Diego’s Trusted ADU Builders
Premier ADU Builders
in San Diego, CA
OneStop ADU offers a turnkey solution for homeowners wishing to build an ADU in San Diego County.
About Us
Top ADU Plans & Designs by Expert ADU Builders in San Diego
Discover the finest ADU plans and designs, specifically tailored for the unique climate and lifestyle of San Diego. At OneStop ADU, we specialize in crafting functional and visually appealing accessory dwelling units (ADUs) that elevate the value and comfort of your property. Whether you’re adding a guest house, a rental unit, or a home office, our team of expert ADU builders in San Diego is here to guide you through every step of the process.
San Diego’s stunning weather and diverse neighborhoods create the perfect environment for innovative ADU solutions. As trusted San Diego ADU builders, we prioritize sustainability and energy efficiency, ensuring your new space is both eco-friendly and cost-effective. From sleek modern designs to timeless classics, we offer a wide variety of styles to match your personal preferences and functional needs.
When you choose OneStop ADU for your San Diego ADU project, you’ll benefit from our full range of services, including site assessment, design, permitting, and construction. Our local expertise as experienced ADU builders in San Diego guarantees that your ADU will meet and exceed your expectations.
Contact us today to learn more about how we can help you create the ideal ADU in San Diego. Let OneStop ADU, the leading provider of ADU solutions in Southern California, bring your vision to life.
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Plans & Designs
OneStop ADU offers 6 floorplans and 3 unique exterior styles for your dream San Diego ADU.
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What Sets Us Apart
Our OneStop ADU team will meet with you to understand your vision and provide a basic feasibility study at no charge and with no obligation.
Our pre-designed floorplans range from a 400 sq ft studio to a 1,200 sq ft four-bedroom option.
Explore our unique exteriors designed in Contemporary, Craftsman & Spanish/Mediterranean styles.
We did all the leg work! Pre-selected designer finishes create a cohesive look for your new backyard home.
OneStop ADU has the knowledge and experience to handle the daunting permitting process on your behalf.
Our in-house licensed building team has over 25-years experience constructing homes and multi-family projects.
OneStop ADU will manage your project from inception to finished product helping to ensure a smooth process.
We have teamed up with some of the top San Diego lenders to help match you to the best loan programs available.
Let’s bring your vision to life – book a discovery call!
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Completed Projects
Our portfolio showcases a range of completed projects that highlight our commitment to quality, thoughtful design, and reliable execution. Each project represents a unique challenge and a tailored solution—whether it’s a custom ADU, a full home renovation, or a modern website design. Explore these finished works to see how we bring ideas to life and deliver results that stand the test of time.
About Us
OneStop ADU clients will also enjoy these bonus inclusions:
Included for our 6 pre-designed plans with signed contract
Provided for no charge at initial in-person consultation
Included as specified for our 6 pre-designed plans with signed contract
Included with signed contract
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Your ADU Solution Across San Diego County
At One Stop ADU, we provide full-service ADU design, permitting, and construction across San Diego County. Whether you’re looking to build an ADU, convert your existing space, or add an extension, we have you covered. Our expertise spans all areas of the county, including:
La Mesa
Poway
La Mesa
Scripps Ranch
Clairemont
About Us
Why Choose a Design-Build ADU Contractor in San Diego?
Building an ADU is a significant and complex project, but it doesn’t have to feel overwhelming. When you work with a skilled ADU contractor in San Diego, you get a team that manages every aspect of the process: from design to permits and construction. You won’t have to juggle communication with multiple architects, engineers, or builders.
It’s faster and often more affordable. You simply share your vision, and we’ll handle the rest.
Our Services
At our company, we offer a comprehensive range of services to help expand and improve your home. From San Diego ADU builders to complete project management, we take care of everything—design, permits, construction, and finishing touches. Our goal is to ensure that your new ADU fits your lifestyle and budget. Here’s what we offer in San Diego:
ADU Construction in San Diego
We specialize in ADU construction in San Diego. Whether you’re planning a rental unit, a guest suite, or an extra room for family, we manage every aspect—design, permits, building, and final inspection. With pre-approved plans and experienced ADU contractors in San Diego, we keep your project simple, compliant, and on schedule.
Custom ADU Design
Want a completely unique ADU? Our San Diego ADU builders can bring your vision to life with a fully custom design. Our expert team will craft a layout tailored to your property, personal style, and specific needs. We handle everything—from permits and drawings to construction. While a custom ADU takes more time and effort, it offers you the freedom to create exactly what you want.
Garage Conversion to ADU
If your garage is underutilized, consider converting it into a livable space. Our ADU contractors in San Diego specialize in transforming garages into comfortable ADUs, complete with bathrooms, kitchens, and all the amenities for daily living. We take care of everything—design, permits, and construction—making the process as seamless as possible.
Room Additions
Our San Diego ADU builders also specialize in custom room additions to give you more space without needing to move. Whether you’re adding a bedroom, expanding your kitchen, or building a home office, we ensure the new ADU fits your home and lifestyle perfectly. We manage all aspects—design, permits, and construction—making the entire process smooth and stress-free. Plus, a well-planned addition increases the value of your property.
Custom Home Building
At OneStop ADU, we work with you to build custom homes that reflect your needs and preferences. Whether you have a clear idea or need help getting started, we create and construct homes that fit you perfectly. You choose the layout, style, materials, and finishes, and we handle everything—design, permits, and construction. With our experienced ADU builders in San Diego, you’ll receive a high-quality, personalized home.
New Home Construction
We also offer new home construction services. Our team of ADU contractors in San Diego works closely with you to design and build a home that meets your needs, while also managing permits, planning, and construction. With us, you’ll have an experienced crew ensuring your project stays on schedule and on budget.
Home Remodeling
For those looking to improve or update their homes, we provide top-notch remodeling services. Whether it’s a living room makeover, kitchen upgrade, or bathroom renovation, our San Diego ADU builders take care of the design, permits, and construction, ensuring a hassle-free experience. Our team communicates clearly and works within your budget to make your home improvement dreams a reality.
Kitchen Remodeling
We offer kitchen remodeling services that are designed to make your cooking space more functional and beautiful. Whether you need new cabinets, updated countertops, better lighting, or more storage, our ADU contractors in San Diego will help you plan and construct the kitchen you’ve always wanted.
Bathroom Remodeling
Transform your bathroom into a more comfortable, efficient space with our expert remodeling services. Whether it’s updating old fixtures, reworking the layout, or replacing tiles, we provide full-service bathroom renovations. Our San Diego ADU builders manage design, permits, and construction, delivering a bathroom that adds comfort and value to your home.
Build Your Dream ADU with Leading ADU Builders in San Diego!
At OneStop ADU, our expert ADU builders in San Diego will turn your backyard into a functional and valuable space. We handle everything—from design and permits to construction and final inspection. No stress, no hassle—just a streamlined process honed by years of experience to deliver exceptional results. Whether you’re looking to add a rental unit, guest suite, or personal office, we ensure your dream ADU becomes a reality.
Schedule your free consultation with our ADU builders in San Diego today and let’s bring your plans to life!
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