Acorn Glade Passive House | July 22nd @ 3:30 PM 
This modern house provides a serene environment on a rare secluded lot in Downers Grove

This 1,800 s.f. Passive House is designed to harmonize with its peaceful, wooded site. The interior is organized around a large south opening to a courtyard-like patio space; as a backdrop to this opening is a wall featuring walnut from trees harvested on site.

As a Passive House, it uses about a tenth the heating energy of a built-to-code home. As a Source Zero house, monitored results show it uses 86% less energy overall including all household energy use and electric car charging. Indoor air quality and occupant health are a primary objective as well, so no-added-formaldehyde panel materials, no-VOC, non-toxic paints, and Greenguard certified sealants, caulks, and adhesives were used along with a continuous demand-controlled ventilation system to provide superior air quality. This house is the winner in two categories of the 2019 PHIUS Passive House Projects Competition: Single Family and Source Zero.

Passive House (PHIUS+2018)
Passive House (Source Zero)
DOE Zero Energy Ready Home

Tom Bassett Dilley Architects
216 Harrison, Oak Park, IL

Evolutionary Home Builders
25 N River Lane, Geneva, IL 60134

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