Location: Santa Cruz, California
Building Type: Single Family Residential
Construction Type: Wood Construction
Project Phase: Complete
Year of Construction: 2013
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Project Team

Architect: Graham Irwin, Essential Habitat
General Contractor: Santa Cruz Green Builders
Developer/Owner: Kurt Hurley & Chie Kawahara
Passive House Consultant: Graham Irwin, Essential Habitat
Project Submitted by: Graham Irwin

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Project Description

This 94-year old house is the first certified Passive House in Santa Cruz County. Water conservation features include rainwater harvesting for indoor non-potable use (laundry and toilets). Charming and comfortable Passive House, as a bonus the before and after utility bills show 80% reduction in energy use after the retrofit.

Project Midorihaus kept the footprint of the three-bedroom, two bathroom California Bungalow originally built in 1922. It was retrofitted to Passive House standard during 2012 with the aim to combine energy efficiency and comfort of Passive House with the aesthetics of Arts and Crafts style.