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Custom ADU Builds Across the Bay Area
From modern accessory dwelling unit designs to complete garage conversions, we create functional, stylish ADU living spaces that expand your home’s value and flexibility.
Accessory Dwelling Units Designed for Bay Area Living
Create more space and increase property value with our modern ADU designs. As trusted ADU builders, we transform underused areas into private, fully functional living spaces tailored to your lifestyle.
ADU
Custom-Built ADU Services – Designed for How You Live
At Design & Construction By M&M, we provide complete ADU design and construction services—tailored to your needs, property layout, and long-term goals. Whether you’re building a detached accessory dwelling unit or expanding with a junior ADU, we handle it all from the ground up. Unlike many ADU builders who rely on prefab units, we construct every project on-site using high-quality materials and a true custom approach.
- Detached ADUs
- Attached ADUs
- Junior ADUs (JADUs)
- Two-story ADUs and Modern ADU designs
From ADU bathroom and kitchen design to maximizing living space and ensuring compliance with city regulations, our team ensures every detail is handled. We’re not just building space—we’re building long-term value for your property.
The Independent Suite
Design in 3 simple steps
Consult & Design
We start with a thorough consultation, creating custom designs tailored to your style and needs.
Expert Construction
Our skilled team manages every detail, from demolition to installation, ensuring precision and quality.
Enjoyment
We complete your project with meticulous attention, ensuring your complete satisfaction and a stunning new ADU.
/ FAQ
Frequently Asked Questions
If you don’t see your question answered here, please don’t hesitate to contact us directly – we’re always happy to help!”
Start Your Project with Us
Ready to build, remodel, or expand? Fill out the form and our team will be in touch to discuss next steps.
Straightforward, professional, and on your terms.
- 100 South Murphy Ave STE 200 Sunnyvale CA 94086
- +1 (650) 899-8968
- 50 California St, San Francisco, CA 94111
- +1 (650) 269-1376
- design@designbymm.pro
License number #1082131