
ABOUT MARIN RIDGE BUILDERS

Our Story
ROOTED IN CRAFT. BUILT FOR THE NEXT CHAPTER.
Marin Ridge Builders is a Marin County-based general contracting firm providing full-service construction, grounded in nearly two decades of hands-on experience and a commitment to exceptional craftsmanship. The company was established after years of building and leading a successful construction business, with the goal of creating a more focused, independent entity aligned with a long-term vision for growth and refinement.
This next chapter reflects a deliberate evolution—one centered on elevated execution, clear and transparent communication, and a highly disciplined approach to building. Marin Ridge Builders is dedicated to delivering thoughtfully crafted spaces that are both enduring and precise in their detailing. The firm is known for its meticulous approach, strong project oversight, and consistently high-quality workmanship across residential remodels, custom homes, and large-scale additions.
Each project is carefully guided from early planning and design collaboration through final completion, with close attention to both process and outcome. At its core, Marin Ridge Builders is built to serve as a trusted partner to clients and design teams—collaborative, responsive, and deeply invested in delivering refined spaces that stand the test of time.
CEO, General Contractor & Lead Builder
COLM KEENAN
Colm Keenan brings over 20 years of hands-on construction experience to Marin Ridge Builders. Originally from Ireland, he worked his way up through the trades-from carpenter to lead carpenter to foreman-before founding and operating his own company, built on a strong foundation of craftsmanship and leadership. Blending technical expertise with a degree in Management, Colm is known for his disciplined approach, attention to detail, and commitment to quality. He takes pride in guiding clients through the building process and delivering thoughtfully executed homes. His work has been featured in Sunset Magazine and Architectural Digest, reflecting a recognized standard of excellence. Outside of work, Colm enjoys spending time with his children and staying active through sports.
CHIEF OPERATING OFFICER
RACHEL FARAC
Rachel Farac oversees operations with a focus on structure, efficiency, and client experience. She holds both a degree in Management and a Master's in Public Administration, bringing a strong foundation in leadership and organizational strategy. With over a decade of experience managing large-scale projects, including programs exceeding $300 million-Rachel is a seasoned project manager with a proven ability to deliver results. She is also a certified Project Management Professional (PMP). Known for her reliability, consistency, and solution-oriented mindset, Rachel thrives on building strong relationships and ensuring every project runs smoothly from start to finish. Rachel enjoys volunteering, hosting events and doing sports with her kids.
WHY WE'RE DIFFERENT
THE MARIN RIDGE DIFFERENCE
SELECTIVE BY DESIGN
We take on a select number of projects to ensure full attention to quality, cost, and schedule.
TRUSTED PARTNERSHIPS
A curated subcontractor network — fully vetted for craftsmanship, licensing, compliance, and ethical standards.
DEDICATED LEADERSHIP
Hands-on leadership working in close alignment with architects and designers to preserve design intent, ensure precise execution, and maintain continuity from concept through completion.
COLLABORATIVE APPROACH
We prioritize collaboration, transparent communication, and creative problem solving on every project.
CREDENTIALS.
CERTIFIED. COMPLIANT. CAPABLE
✓ Fully Licensed General Contractor in the State of California (License #1156391)
✓ Fully insured and bonded for residential and commercial construction
✓ OSHA trained team committed to safe, compliant job sites
✓ Strong relationships with local subcontractors, suppliers, and trade partners
✓ Extensive experience with San Francisco and Marin permitting and inspections
✓ PMP certified (Project Management Professional) for structured project delivery
OUR MISSION
BUILT ON THE FOUR C'S OF CONSTRUCTION
CREATIVITY
Inspired design, tailored solutions, craftsmanship that elevates every detail.
COLLABORATION
True partnership from concept to completion. Seamless teamwork, shared vision.
COMMUNICATION
Clear, consistent, transparent at every step. Proactive updates, no surprises.
COORDINATION
Precision in every phase. Efficient project management. Details aligned start to finish.

