ADU Construction Services | Design & Construction by M&M
Need to remodel your house or increase the living area? Design & Construction by M&M is a professional general contractor company in the Bay Area. We handle all processes, including design, permitting, construction, and finishing with accuracy and attention to detail in full-scale remodelling and addition of rooms, as well as in ADUs and custom construction projects.
What Is ADU Construction?
ADU construction is the construction of an independent living unit on an already existing residential property and this could be a garage conversion, backyard cottage, in-law apartments or modular unit. The ADUs offer versatility in terms of housing requirements, supplementary income, or housing extended family.
At Design and Construction by M&M, we undertake all the work concerned with ADU construction such as design, permits, utilities and finishing. Our mission is to make your property and living spaces functional, stylish and durable.
Our ADU Construction Services
The services of our ADU offer guidance to the homeowners on the whole construction process, which is effective and efficient.

Garage Conversions
Convert the Garages into complete living units.

Backyard & Cottage ADUs
Construct detached structures that have all the amenities.

In-Law Suites and Granny Flats
Family members can live comfortably.

Prefab & Modular ADUs
Rapid, low priced, and individualized units.

One & Two-Bedroom Units
Customized to your property and lifestyle.

Complete-Service Project management
Design, permitting, construction, and finishing, done in a professional manner.
Why Choose Design & Construction by M&M
Designing an ADU involves experience in design and building. Our team also applies knowledge, precision, and attention to detail in all the projects.
We are preferred by clients because of our professional craftsmanship and the use of quality materials as well as effective communication during the construction process. We cater to the production of ADUs that are practical, pretty and durable.
Our Construction Process
The process of every new construction project is organized in a way that there is seamless running of the project and standard quality.
Our ADU Construction Process
We start by talking about the vision, budget, and the layout of the property of the homeowner in order to establish the most appropriate plan of construction.
Consultation & Planning
We talk about your targets, plan of the property and ADU alternatives to design a specific one.
Design & Permitting
Our group makes elaborate construction plans and handles permit applications
Construction & Project Management
Professional constructors will undertake every step, which involves foundation, framing, utilities and interior finishes.
Area We Serve: San Francisco | Palo Alto | Menlo Park | Atherton | Mountain View | Sunnyvale | Los Altos Hills | Belmont | Redwood City | San Mateo | Pacifica | Hillsborough | San Carlos | Woodside | Portola Valley | Saratoga | Los Gatos | Cupertino | San Jose | Santa Clara | Daly City | San Bruno | Millbrae | Burlingame | Los Altos | Campbell | Fremont | Milpitas | Brisbane |foster City
/ FAQ
Frequently Asked Questions
ADU (Accessory dwelling unit) is a secondary independent dwelling unit on a residential property, i.e. a garage conversion or backyard cottage.
The average length of time required in ADU construction is 4-6 months according to design complexity, permits, utilities, site preparation, and the construction method of choice.
Yes, there are building permits and inspections in the Bay Area on all ADUs. We handle all the permitting procedures of compliance and approvals.
Yes, ADUs increase the value of property as they offer extra living space, possibilities of the rental income as well as modern and practical designs that are attractive to the purchasers.
You may construct garage conversions, backyard cottages, in-law suites, granny flats, prefab units, modular units, one- and two-bedroom ADUs.
Prefab ADUs are quick and economical, whereas custom-built units provide the freedom of design and individuality to your house and way of life.
Request a Free Estimate Today
Ready to start your project? Contact Design & Construction by M&M for a free consultation and quote. Let us bring your vision to life!
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