In Seattle’s Ballard neighborhood, older homes are being rapidly replaced with energy-efficient townhomes. One of the area’s builders, nwBuilt, is targeting all Built Green 5-Star certification. Their most recently certified 5-Star projects are two single family townhomes, designed with an unique asymmetric façade that makes them pop out.
But what really makes this project stand out is what they didn’t do. While most projects start by demolishing the original structure, releasing tons of embodied carbon emissions and contributing to climate change, nwBuilt chose a different path. They partnered with Nickel Bros to relocate the site’s original 730-square-foot bungalow, giving it a second life as an affordable home on Lopez Island. Pulling the home from Ballard was quite the neighborhood event. Relocating the house for reuse prevented tons of embodied carbon emissions and preserved around 30 trees worth of lumber, roughly equivalent to the amount one person could recycle in 50 years.
Vital Stats
|
Section
|
Points
|
Location: Ballard, Seattle
Star Level: 5-Star
Checklist: Single-Family/Townhome
Verifier: Evergreen Certified |
Site and Water |
158 |
Energy Efficiency |
131 |
Health and Indoor Air Quality |
151 |
Material Efficiency |
110 |
|
Total Score |
603 |
Through the combination of thoughtful salvaging, design, and a passion for green building, nwBuilt has been able to incorporate green products and equipment like HRVs and mini-splits to achieve their 5-Star goal. By over-framing the exterior, they created a sloped wall that serves as a design element and doubles as an overhang. Modern elements continue through the interior, with wide-plank FSC- and FloorScore-certified oak flooring throughout the upper floors and a polished concrete main floor.
Triple-pane windows, 2x8 exterior walls with blown-in cellulose, and a gas water heater help keep energy consumption low. A Lifebreath heat recovery ventilator (HRV), the lack of carpet, and the use of low- to no-VOC products will maintain indoor air quality so the homeowners can feel comfortable and remain healthy in their homes. The home is also pre-wired for a future PV array and is electric-car-charging ready.
By combining these features and others listed below, nwBuilt was able to create two well-rounded single-family residences that are sure to last and have a minimal impact on the environment.