4280 Redwood Hwy, Suite 10 San Rafael, CA 94903 (415)472-4244

High end residential construction and complex remodeling specialists.

We build custom homes, luxury remodels, additions, and structural improvements throughout the Bay Area, with deep expertise in challenging sites, hillside construction, and foundation systems.
40+ Years of Experience
Four decades of residential construction across Marin County and the greater Bay Area.
Built on consistent results, long term client relationships, and work that stands the test of time.
Fully Licensed & Insured
California Contractors License #777635
We operate with full licensing and insurance to ensure every project is delivered with professionalism, accountability, and protection for our clients.
Local Expertise
Deep experience building in Marin County and surrounding Bay Area communities.
From coastal conditions to hillside terrain, we understand the challenges of building where you live and how to deliver lasting results in these environments.
Commitment to Quality
We take pride in every detail of our work and stand behind each project with integrity, care, and accountability from start to finish.
CHOOSE YOUR SCOPE OF WORK
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Structural and Foundation Systems

We provide specialized diagnosis, repair, and reinforcement of structural and foundation systems for residential and complex hillside properties. Our work addresses settlement, cracking, load bearing concerns, and soil related movement that can compromise long term performance and safety.

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Luxury Remodels and Custom Homes

We deliver custom residential construction including kitchen and bathroom remodels, home additions, accessory dwelling units, and full scale renovations. Each project is tailored to the architectural vision, site conditions, and the way the client intends to live in the space.

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Hillside Construction and Site Development

We specialize in grading, drainage, and site development for challenging hillside and complex terrain conditions throughout the Bay Area. These projects often require careful planning and execution due to steep slopes, soil movement, water management concerns, and access constraints.

OUR APPROACH

 

Experience Built on Decades of Residential Construction
 

For over 40 years, Millsap Degnan & Associates Inc. has partnered with homeowners across Marin County and the greater Bay Area to solve complex structural challenges and create functional, high quality residential spaces. Founded in 1985 by Steve Millsap and Douglas Degnan, the company is built on experience, reliability, and long term construction performance. Our work includes custom homes, major remodels, structural upgrades, foundation systems, and hillside construction, all approached with an engineering driven mindset focused on smart solutions and lasting quality.

About Us
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What Our Clients Say

  • I have utilized literally hundreds of contractors over the years and Millsap Degnan is at the top of the list in all facets of building, demo, underground, general Building, working with soils, building, special inspectors and the list goes on. I will NEVER hesitate to recommend Millsap Degnan to anyone whom could benefit by his multi talented services. Thanks Mike Millsap!! You are truly appreciated
    Jon Caroll
  • I actually know something about construction myself, having built a home in the woods from the ground up, and I was very impressed with Doug's knowledge of his profession. He also strikes me as the kind of contractor that I could hire for a job and then walk away in complete confidence that he would continue doing what, in his professional opinion, was the right thing for me and the job. And if he needed my input, he'd call me. I can't think of very many people I can say that about.
    Arthur C.
  • After watching the job, and reading a lot about it, I was satisfied that they did the work right. I actually like Steve more now than I did when the job started. He was honest, competent, kept us informed, and finished what he started. That is a contractor first, in my experience.
    Brian B.
  • Doug Degnan brings years of experience with him and his team. They are problem solvers. They are honest reasonable and hard working. My project was finished early and with complete satisfaction. I thought their attention to detail was remarkable!
    Shannon S.
  • Doug Degnan is just fantastic! He met with my client today and explained many issues on a previous inspection report, on a property that I was selling. He made my client feel totally knowledgeable with regard to what she was buying and the approximate costs to repair or replace, where necessary, items mentioned in the report. In addition, his company has personnel that can do the necessary repairs in most of the major building categories from electrical to plumbing. He is really fabulous! Thank you Doug for your professional help!
    Candy G.
AREAS WE SERVE

 

Trusted Across Marin County &
the Bay Area
 

We proudly serve homeowners and property owners throughout Marin County and the greater Bay Area. Our work is regularly completed in communities including San Rafael, Mill Valley, Tiburon, Belvedere, Larkspur, Corte Madera, Kentfield, Ross, Fairfax, Novato, and Sausalito, as well as select projects in Sonoma County, Napa, Berkeley, Concord, and surrounding Bay Area regions.Our focus remains on delivering high end residential construction and complex remodeling work within the communities where we have long standing relationships and deep local experience.

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Quality construction starts here.

Work with our experienced team dedicated to bringing your project from concept to completion with clarity, care, and precision.

CONTACT US