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You are here: Home / Portfolio / High Performance Homes / The O’Neil Retrofit

October 20, 2014 By Rick Milburn

The O’Neil Retrofit

PassivWorks built the first Certified Passive House™ in California and the first Certified Passive House™ retrofit in the United States. This house was the Historic “O’Neil House” in Sonoma.

Overview:

Located just blocks off the plaza in historic downtown Sonoma, PassivWorks has built the first Certified Passive House™ in California and the first Certified Passive House™ retrofit in the United States. Homeowner Catherine O’Neill wanted a comfortable and environmentally-friendly home. Upon learning the advantages of the Passive House Standard, she decided to create a model home and help set a new benchmark for energy efficiency in America.

Design Challenges:

Constructed in 1960, the ranch house was originally two structures linked by an outdoor covered breezeway. The two existing slabs were uninsulated and at different elevations. The single story, North-facing, ‘U’-shape configuration not optimal for solar access or performance and further limited due to shading by adjacent buildings and trees. Site conditions and zoning required that the existing footprint and foundations remain.

Project Success:

The retrofit transformed this neighborhood eyesore into a near net zero energy, state of the art modern farmhouse “jewelbox” that provides exceptional comfort and durability with energy bills averaging $15/month. Energy savings and predicted performance are confirmed by the Department of Energy and Lawrence Berkeley National Lab which have installed monitoring equipment in the home.

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Filed Under: High Performance Homes

Passivworks, Inc.

• We source 90% of our material from the United States and 100% of our labor from qualified individuals dedicated to your project's success.
• We maximize the use of non-toxic materials and products in every project.
• We are not interested in being the biggest, just the best at what we do. The majority of our yearly sales are returning clients or their referrals.

"Rick Milburn of Passivworks is the most thorough, honest and knowledgable professional I have ever had the pleasure to work with in building a home. I have built far too many in my lifetime, but I have never experienced such passion for excellence that Rick and his team display." - J. Wood,  The Wood's Custom Villa, Sonoma
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