Sustainable Design-Build on California's Central Coast
Cairn Collaborative provides healthy, comfortable, and responsible low-energy, low-carbon residential design and construction on California’s Central Coast — high-quality projects contributing to a better community and planet.
We are PHI Certified Passive House Designers & Builders.
By adhering to the Passive House Institute (PHI) standard and certification, we create highly energy-efficient custom homes that minimize our impact on the planet and our fellow humans.
As a certified Passivhaus designer and builder, we design, permit, and construct beautiful Central Coast homes that provide superior comfort, abundant natural daylight, and year-round comfort without relying on operational equipment and maintenance, or incurring subsequent costs.
We design and build sustainable, durable spaces that harmonize with the environment and the people inhabiting them.
Our Experience
25 years custom residential home design and construction
15 years of zero net energy design build
Licensed general contractor in California & Massachusetts
Featured Project
Bishop Passive House - a resilient, efficient, comfortable, healthy, cost-effective, all electric, Passive House certified single family residence.
Project Journal
A comprehensive visual log of current builds, surf sessions, supervisor pups, and our talented and indispensable crew.
Building Passive Video Series
A comprehensive and educational first-hand video series about the design and construction of high-performance Passive House assemblies.
Crew Kudos
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"We adored working with Mike. He is such a fantastic, honest, and dependable human being. He was the best at communicating before, during, and after our home renovation. No surprises; he ran everything by us as items came across that weren't anticipated to discuss our options."
Jane B.
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"Mike and his team have been incredibly thoughtful and considerate throughout our renovation. They have great attention to detail and are very considerate, almost to a fault! Use their knowledge of energy efficiency! They really know their stuff."
Serena W.