![[bundle] design studio & Instinct Builders built this 2,400-square-foot duplex in Bellingham, Washington, to the high performance criteria of the U.S. Department of Energy’s Zero Energy Ready Home (ZERH) program.](/buildings/residential/explorezerh/sites/default/files/styles/splide_rectangle/public/2024-hia_home_images/bto-toz-2023-Bundle-Duplex-1-Front.jpg?itok=aEimebg9)
Donovan Duplex
Project Address
Bellingham, WA
Conditioned Square Footage
2,400 sqft
Number of Bedrooms
6 Beds
Number of Bathrooms
4.0 Baths
Number of Floors Above Grade
2 Floors Above Grade
Home Type
Multifamily
Climate Zone Temperature
Mixed
Climate Zone Humidity
Marine
With PV
HERS Index with PV
39HERS (PV)
Average Monthly Energy Bill PV
$60Average Monthly Energy Bill (PV)
Annual Energy Cost Savings with PV
$1,460Annual Energy Cost Savings (PV)
30 Year Savings with PV
$61,10030 Year Savings (PV)
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Key Features
Key Features
All-electric home Compact (core) plumbing design Energy / Heat recovery ventilator Electric Vehicle Charger Installed or Wired for Charger Heat pump water heater High-performance wall with continuous insulation Raised-heel trusses Triple-pane windows ACH 50 < 2.5 or CFM50/SF of enclosure ≤ 0.25 Hot Water Recirculation Pump
Testimonials
Home owner (or occupant) TestimonyThe most striking thing we noticed about the home when we moved in mid-winter was the insulation (in every sense of the term) from the outside world … Just comfort, warmth, quiet. It [is] a sanctuary. If only all homes could be built this way.Testimony CitationTenant
