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.

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.

Steelhead Architecture uploaded Lightbox 23 through Add A Home.
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Modern home with Exterior, Metal Roof Material, House Building Type, Flat RoofLine, Metal Siding Material, and Shed RoofLine. Exterior front corner with stepping tubes Photo  of Lightbox 23View Photos

Exterior front corner with stepping tubes

Modern home with Exterior, Metal Roof Material, House Building Type, Flat RoofLine, Shed RoofLine, and Metal Siding Material. Exterior elevation showing split levels Photo 2 of Lightbox 23View Photos

Exterior elevation showing split levels

Modern home with Exterior, Metal Siding Material, Shed RoofLine, House Building Type, Flat RoofLine, and Metal Roof Material. The south unit exterior Photo 3 of Lightbox 23View Photos

The south unit exterior

Modern home with Living Room, Medium Hardwood Floor, Coffee Tables, Sofa, and Recessed Lighting. Open living space with 2-story volume Photo 4 of Lightbox 23View Photos

Open living space with 2-story volume

Modern home with Staircase, Wood Tread, and Glass Railing. The floating stairs opening to each split level Photo 5 of Lightbox 23View Photos

The floating stairs opening to each split level

Modern home with Dining Room, Chair, Pendant Lighting, Table, Recessed Lighting, and Medium Hardwood Floor. Open living to the large expanses of glass. Photo 6 of Lightbox 23View Photos

Open living to the large expanses of glass.

Modern home with Bath Room, Porcelain Tile Floor, Porcelain Tile Wall, Wall Lighting, Undermount Sink, Recessed Lighting, Engineered Quartz Counter, and Open Shower. Master bath with ribbon of windows and clerestory glass Photo 7 of Lightbox 23View Photos

Master bath with ribbon of windows and clerestory glass

Modern home with Outdoor, Rooftop, Concrete Patio, Porch, Deck, Small Patio, Porch, Deck, and Tile Patio, Porch, Deck. The corner view deck with outdoor living  Photo 8 of Lightbox 23View Photos

The corner view deck with outdoor living

Builder
  • Lightbox Portland
Photographer
  • Josh Partee Photography

Overview

Bedrooms
  • 3
  • Full Baths
  • 3
  • Structure
  • House (Multi Residence)
  • Style
  • Modern
  • Year
  • 2017
  • Square Feet
  • 2327
  • Lot Size
  • 2500