Prefab ADU San Diego

Get Your ADU Project Done Quickly With Our Pre-Designed Units

Ten Seventy Architecture is a leading architecture studio helping lovers of modern design to seamlessly navigate the intricacies of building an accessory dwelling unit in San Diego.

Whether you want to increase your living space or plan to use the ADU as a rental unit, we're happy to support you in every step of the process. Our team will help you understand local regulations, guide you through the design / development process, and navigate the permitting process.

Making Prefab ADU Construction Simple

ADUs have surged in popularity among homeowners and rental property investors, and for good reason. Adding an ADU to your property is a great option for those aspiring to extend their living spaces or dive into rental property ventures. Our prefab ADU plans provide our clients with an easy way to build a high-quality unit featuring sleek + functional modern designs, in a fraction of the time compared to designing an ADU from scratch.

The plans, inspired by our acclaimed Prince House ADU project, adhere to all relevant building codes and regulations of San Diego, so that you can focus on selecting design nuances and customization alternatives that will add value and space to augment your lifestyle.

With over a decade's experience shaping our proprietary design and build process, we offer a comprehensive suite of services, striving to curate a seamless ADU building experience for our clients.

Ready to embark on your project? Hit the button below to book a consultation to get your project started.

Book a Consultation

The Features of our Pre-Designed ADU

Our pre-designed ADU plans are crafted to assist you in saving time and money, and avoiding stress while constructing a modern + functional ADU. Although these plans are pre-designed, they are anything but generic. They allow ample room for incorporating various customization options to make your future ADU one of a kind.

Build Your San Diego ADU Quickly + Affordably

Opting to initiate your ADU project with our prefab plans permits offers you top-tier designs at a cost-effective price point. These plans are formulated to act as your project’s blueprint, crafted to align with your lot’s specifications, zoning laws and regulations.

Another benefit of prefab ADUs in that they come at a fraction of the cost of custom ADU designs while preserving the same modern + minimalist aesthetic our architecture studio has become known for throughout Southern California.

Our prefab plans and refined architecture process enable us to expedite the construction of your ADU significantly, thereby keeping your total ADU cost as low as possible.
Photo of a modern renovation project by ten seventy architecture

The Best Prefab ADU + Granny Flat Design Studio in San Diego

As prefab accessory dwelling units are becoming increasingly popular in San Diego, we recognize the importance of imparting your personal touch to the space. Therefore, we’ve integrated numerous customization options, allowing your upcoming ADU to materialize precisely as you envisioned.

With these plans, your unit can evolve into a two-story duplex, integrate a balcony, or have its footprint minimized to accommodate tighter lots.

Our prefab ADU plans are made with the flexibility to be adjusted to your project’s requirements and lot size, concentrating on every detail to enhance efficiency and sustainability, providing a variety of options irrespective of your lot’s orientation.
Photo of a modern home in San Diego designed by Ten Seventy Architecture

An Expedited + Smooth ADU Project Process

Leveraging our prefab ADU plans, the ADU building process is accelerated and simplified from start to finish. Your project will be designed, permitted, and finalized approximately three to four months quicker than a conventional ADU.

Given that these plans are prefabricated, there is minimized potential for future delays or unforeseen expenses. The designs encapsulate specific codes and regulations and are crafted to accommodate lots as narrow as 25’ wide.

Post aligning the plan to your lot size and embedding any additional customizations, we will draft the concluding floor plans and forward them for permitting.

Intrigued to witness our prefab plans in application? Scroll down to view our portfolio and delve into the Prince House ADU, the project which inspired these plans.
Photo of a modern ADU project in San Diego by Ten Seventy Architecture

Begin Your ADU + Granny Flat project in 3 Easy Steps

Book a Consultation With Us

Learn More About Our Team at Ten Seventy Architecture + Options for Your Renovation

Book a Consultation with Us and Have Your Questions Answered

Have a Plan to Hire an Architecture Studio + Build Your Renovation Project

Browse Our Portfolio of ADU Projects in San Diego

With over a decade's worth of experience, Ten Seventy Architecture has emerged as one of the leading architecture studios in the area, committed to crafting stunning ADUs.

The Prince House

42nd Street ADU

Ticonderoga ADU

Main Street Development

The Everett ADUs

The Kenosha Residence

Casitas Harrison

Meet Our Team of Professional Modern Architects

Our team of experienced architects will work with you every step of the way to ensure your ADU project gets done on time, within your budget, and ultimately achieves your goals for starting the project in the first place.

Founder / Principal Architect

Sean Canning

Sean is a graduate of NJIT, where he studied architecture + industrial design. He relocated to San Diego in 2009 to open the boutique architecture studio, Ten Seventy Architecture, focussing predominantly on modern, minimalist, + creative architecture. Sean has also won various awards for modern furniture he has designed.

  • California Registered Architect

  • LEED Accredited Professional

  • Bachelor of Architecture (NJIT)

  • Certification in Project Management (SDSU)

Profile Picture of Sean Canning - Principal Architect and Owner of Ten Seventy Architecture in San Diego, California

Project Manager / Permit Specialist

Margaret Canning

Margaret is also a graduate of NJIT, where she studied architecture + civil engineering. She relocated to San Diego in 2010 working at a LEED consulting firm before taking a job as a project manager in San Diego’s permit office for 5 years. Later she brought her skillset to Ten Seventy Architecture where she manages projects + permitting.

  • LEED Accredited Professional

  • Bachelor of Architecture (NJIT)

  • Masters of Civil Engineering (NJIT)

  • Certification in Project Management (SDSU)

Margaret Canning Profile Photo of Ten Seventy Architecture

Architectural Designer

Jen-Ni Lin

Jen-Ni is our Architectural Designer who works on projects which require greater graphic illustration. She works on our aesthetic commercial projects as well as small modern ADU projects that require tight planning and out-of-the-box thinking. Jen-Ni is a talented designer who can develop good ideas into beautiful architecture.  

Margaret Canning Profile Photo of Ten Seventy Architecture

Architectural Designer

Nolan Delgado

Nolan is the team’s Architectural Designer who works on custom residential projects which require the highest level of attention to detail. He has worked to refine our 3D printed study models as well as build templated architectural processes. Nolan brings a modernists rational to our projects.  

Margaret Canning Profile Photo of Ten Seventy Architecture

10+ Years of Experience
in a Wide Range of Home Styles and Design Services

"Sean is the guy if you are looking for a Los Angeles architect. I was referred to him via a mutual business connection, and couldn't be happier with his work...The final product was phenomenal. I could not be happier. His work was not only exactly what I was looking for, but he did it in a timely fashion. "

Alexandra G.

"An element we loved about Sean was his ability to see creatively from the very beginning. And I can tell you that when we walked out of the meeting with Sean, we both looked at each other and said: “That’s the guy we want” And we’ve had no regrets ever since."

Tom R.

“5.000 stars. The recent opening of our ophthalmology practice has been a year in the making, and Sean Canning from Ten Seventy Architecture was integral to the successful design and execution of our space.”

Adam D.

“Highly recommend working with Sean, he is a licensed Architect who puts the customer's best interests first. I have worked with Sean on several projects, his thoroughness streamlines the project helping save money and time.”

Curtis P.

The Ultimate Guide to San Diego ADU Regulations

If you're still researching the feasibility of your ADU project, this comprehensive guide is a must-have. Get all the info you need to navigate the ins and outs of San Diego ADU building regulations and permits.

A Complete Guide to Planning + Building Your ADU or Granny Flat

Looking to save time, money, and hours of frustration? Then you need to check out our ADU project guide – which will clearly explain everything you need to know to build an ADU in San Diego successfully.

Recently updated, it reflects the city's current ADU regulations, featuring the entire ADU municipal code, along with helpful explanations + visual diagrams. This means you can view the technical code, and get expert insight into how local regulations will affect your project.

With this guide, you'll be able to easily evaluate your project's feasibility and map out a plan for your ADU. And when you're ready, you'll have the confidence to start reaching out to architecture firms to get a quote on your project.

This guide includes everything you need to plan your San Diego ADU project. Download it today!

San Diego ADU Project Guide Mockup

Frequently Asked Questions

What Architectural Styles Do You Work In?

Our team of Los Angeles architects specialize in modern + minimalist architectural design. On occasion, we work in other styles such as contemporary, prairie style, craftsman, or traditional architecture design.

What does Your design + permitting approach encompass?

Our integrated approach to design and remodeling combines a unique design + permitting process. From the initial conceptual phase to obtaining necessary permits, we manage your ADU building project. This ensures a smooth and streamlined process, minimizes delays, and maintains exceptional consistency in design and execution.

Do you offer both interior and exterior design and construction in Los Angeles?

Indeed, our architecture firm in Los Angeles provides comprehensive architectural design servics, catering to both your interior and exterior requirements with proficiency.

How Much Do Permits Cost In Los Angeles?

Building permits are fees charged by municipalities and can vary significantly. Also note that new homes may be subject to additional fees imposed by the local government for the impact on the community.

Do you design Landscape Projects?

Yes! Whether you're working on a residential or commercial landscape project, we're delighted to lend our expertise in landscape design. Our team has a wealth of experience, particularly in designing commercial tenant improvement projects over the past ten years. Don't hesitate to reach out if you need any assistance with your commercial project – we're here to help you every step of the way.

Do You Offer Virtual Architecture Consultations?

Absolutely! If you're keen on a virtual consultation with one of our talented architects in CA to delve deeper into our outstanding architectural services, signing up is a breeze! Just fill out the form at the bottom of this page, and we'll promptly coordinate a meeting to discuss your specific requirements.

Do you design ADUs + Granny Flats in California?

Certainly! We have expertise in crafting unique ADUs and would be delighted to design a personalized one just for you. Feel free to reach out regarding our ready-made 1-Bedroom/1-Bathroom ADU option. Integrating an ADU is an extraordinary approach for homeowners to maximize their living space and fully utilize their property.

What areas do you work in?

Our team consists of skilled architects based in Los Angeles and Orange County, allowing us to undertake projects across California. From the breathtaking shores of Newport Beach and Laguna Beach to the scenic landscapes of Laguna Hills and the vibrant city of Los Angeles, we deliver exceptional architectural services throughout the region.

Do you design Commercial Projects?

Absolutely! Our team is composed of highly skilled architects and designers who possess extensive expertise in both residential and commercial projects. With a wealth of experience spanning more than a decade, we have made valuable contributions to numerous successful commercial tenant improvement projects. The opportunity to assist you in your commercial endeavors is truly exciting, as we are dedicated to bringing your vision to life and surpassing your expectations.

What Else Can you Design?

Our team handles a diverse range of projects, specializing in modern and minimalistic design. You have the option to hire our architects, who are skilled in working on a wide variety of projects:

- Floor plans
- Kitchen design
- Interior design
- Feasibility studies
- New construction
- Historic restorations
- Residential homes
- Residential projects
- Green buildings
- Structural design
- Residential architecture
- Commercial architecture
- Coastal homes
- Conceptual design
- Residential buildings
- Space planning