Ten Seventy Architecture helps people who love modern architecture overcome the challenges of building an accessory dwelling unit (ADU) in California. Our architecture studio combines a love of modern design, a proven process, and the latest technology to elevate our clients’ lives with incredible architecture.
With our expert developed pre-approved plans, it’s never been more efficient or affordable to build a high-end ADU in California.
Accessory dwelling units (ADUs) are becoming popular projects for homeowners and rental property investors alike throughout California. ADUs are great options for those looking to expand their living space or begin rental property investing. Our pre-approved ADU plans help our clients overcome the challenges of building a high-end unit with sleek + functional design by making the process easier and more affordable than ever.
These pre-approved plans, based on our Prince House ADU project, incorporate complex city codes and common regulations for San Diego. When you begin your project with our pre-approved options, you can focus on choosing the design details and customization options that will enhance your life for years to come.
Our modern architecture team has spent 10+ years shaping our proprietary design + build process. We offer a full suite of services to make the ADU building experience as seamless as possible for our clients. If you’re looking for in-depth guides and common questions, check out our ADU Resource Center.
Once you're ready to move forward, click the button below to get in touch. We’ll help you customize our pre-approved ADU plans to fit your style and needs.
Our ADU plans are expertly designed to help you save time, money, and stress while building a modern + functional ADU in California. While these plans are pre-approved, they’re anything but cookie-cutter. They offer the flexibility to incorporate several customization options and personal touches to make these plans your own.
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With over a decade of experience, Ten Seventy Architecture has become one of San Diego’s leading architecture studios dedicated to creating beautiful ADUs. In fact, our pre-approved ADU plans for California residences were developed based a recent project called “The Prince House.” It’s a perfect case study for achieving high-end designs at a reasonable cost.
At Ten Seventy Architecture, we put our clients’ goals and feedback at the center of every design. Our modern architecture studio utilizes a proven process and the latest technology to develop modern + functional designs that delight for years to come.
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)
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)
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.
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.
Municipal permit fees will be about $10k per ADU. Current construction costs in San Diego start around $300/sf.
By using one of our pre-designed ADU plans you can save upwards of $20k from typical design + engineering fees.
Permitting in San Diego can take around 3-4 months. Construction projects will generally take 12 months +/- depending on your contractor.
Our pre-designed ADU can shave 3-4 months off of our typical design process of designing an ADU from scratch.
Yes, all projects, including ADUs + JADUs, require a permit.
You don't need to know anything about permitting. We have the best permit expert in San Diego on staff!
If you'd like us to customize the plans per your specifications it will take us a few weeks.
Fill out the form on the bottom of this page to get in touch with us!