Lightbox 23 net zero House, Portland Building, Sustainable Home, Oregon Real Estate, US Property Images
Lightbox 23 net zero House in Portland
Real Estate Development in Oregon, USA ? design by Steelhead Architecture
Aug 14, 2018
Lightbox 23 net zero House
Design: Steelhead Architecture
Location: Portland, Oregon, USA
Lightbox 23 net zero House

Lightbox 23 is a 2-unit net zero infill project in inner NE Portland. The project features super insulated wall, roof and sub-slab assemblies plus high performance mechanical and ventilation systems. Topping it off (literally) is a 10kW solar array on each unit. The project has been certified net zero by Earth Advantage.

The design is a split level floor plan with the floating stairs acting as the central spine. Each floor opens to the half level above and below through the open slot the stairs create. The exterior tube forms step up the facade to the corner view deck where Mt. St. Helens and Mt. Adams are visible to the north. Being a corner lot each unit faces a different street and the plans / facades are mirror images of each other.
Lightbox 23 is a speculative project by Lightbox Portland, who is dedicated to high performance, high density modern development. 3 more Lightbox Portland / Steelhead Architecture projects are currently in process.

Net zero construction simply means generating as much, or more, energy as is used by the building. On the supply side this means a 10kW solar array for each unit. That’s the ea...