+2edison7 is a gorgeous renovated LEED platinum residence by Studio Twenty Seven Architecture in Arlington, Virginia. The home is located at the intersection of 27th and Edison Streets (hence its name), and it seeks to achieve site specificity as a high-performing sustainable residence. Since its completion the home has won an impressive range of eco accolades and certifications including USGBC LEED for Homes Platinum, NAHB National Green Building Program Gold, Arlington County Green Home Choice Gold, EPA Energy Star Home, EPA Indoor Air Quality Plus, and National Wildlife Federation Certified Wildlife Habitat.
This home is a design and research project that sought to revitalize a typical suburban residential building with modern amenities and sustainable retrofits while adjusting the building’s spacial program to account for site conditions and orientation. The stairway draws inspiration from the way that light dapples down through two maple trees which were on the site. A photo of the maple leaves was adapted to a pixelated contrast pattern and then translated to a template for milling machine, which then milled the wood.
Working off of the existing masonry core Studio Twenty Seven Architecture realigned and expanded +2edison7 away from the public street and towards the quiet of its garden. The density and rhythm of the neighborhood suggested a design based around scale modulation and precise viewpoints. The house massing builds from the scale of the original core, and a new addition up top opens the house to the site situation. Each window was carefully located to mediate the public-private threshold of the site, focusing on the most compelling views yet allowing privacy and capitalizing on specific solar orientation.
Featured sustainable strategies include: a large cistern for rainwater harvesting for irrigation of productive food garden; Low VOC (Volatile organic compounds) paints, adhesives and finishes; Salvaged oak wood flooring; FSC Certified hardwood flooring; Salvaged brick, Kraftpaper (recycled) composite exterior siding; Icynene spray foam insulation; Energy Star-Certified appliances, lighting and ceiling fans; Geothermal wells with Waterfurnace dual dampered zoned heating and cooling with Programmable Thermostat; an Energy Recovery Ventilator; Dual and low flow toilets, Aerated low flow faucets; and a home energy monitoring system.