AIA Green Housing Guidelines

Eastern Village Cohousing

Infill/ brownfield/adaptive re-use/high density

Infill project featuring the adaptive reuse of a long vacant mid-1950s office building for a mixed-use project of approximately 80,000 SF of residential cohousing condominium units along with 15,000 SF of live/work+ space in a separate wing.

Locate near public transportation

Located within 10 minutes walking distance of Metro train, bus station and 15 minutes if an intercity bus terminal.

Site Design

Pedestrian/bicycle friendly

Adjacent to miles of park roads and trails. Bike locker is availabe inside the building. Parking is off-site in an underutilized county garage.

Building Design

Daylighting

Daylighting was studied by an energy model and determined to exceed code by 40%.

Passive Heating/Cooling

Shading on southwest elevations achieved via green screens and deep overhangs on south facing facades and walkways. Vegetated courtyard helps alleviate summer heat buildup.

Green roofs/cool roofs

Green "living" roof controls rainwater runoff and provides thermal protection. Green roof made on a modified IRMA roof with precast concrete pavers serving as walkways and patio space on the roof deck. Trellises supporting deciduous vines incorporate plantings that are drought resistant and soils that greatly reduce stormwater discharge.

High Performance Building Envelope

Walls: 5" batt insulation, existing masonry wall and an added exterior of 1-1/2" EIFS.(R-25); Roof: 3" extruded polystyrene rigid board insulation (R-18). Thermally broken double-pane windows, U-value: 0.40.

Water Conservation and Management

Stormwater Management

Green roof controls stormwater runoff - trellises supporting deciduous vines incorporate plantings that are drought resistant and soils that greatlycontrol rainwater runoff. Changing the existing paved parking court to a garden increased permeability and extensive plantings help absorb runoff.

Water Saving Appliances

Fixtures are low-flow.

Energy Efficiency

Energy Efficiency Heating and Cooling

Single-loaded configuration of 80% of the units allows for effective cross-ventilation. Geothermal system lowers energy costs for residents, involves reticulating distilled water through forty 650' deep wells to individual ground source heat pumps. It is a closed loop system that requires minimal long-term maintenance. Provides estimated 35% energy savings compared with ASHRAE 90.1-1999.

Energy Star Appliances/Lighting

Appliances are Energy Star rated; lighting is high efficiency.

Recycling

Recycled Content Materials or Recycling On Site

Over 40% materials manufactured locally. 70% of construction waste from demolition was recycled offsite. Recycling bins for glass, metal and paper products are provided for residents and picked up weekly.

IEQ

Limit Emissions/moisture/sound/allergens

Low-VOC paints, adhesives, sealants and carpet systems.

AIA Green Housing Guidelines			Eastern Village Cohousing
1	Community Context	Infill/ brownfield/adaptive re-use/high density	Infill project featuring the adaptive reuse of a long vacant mid-1950s office building for a mixed-use project of approximately 80,000 SF of residential cohousing condominium units along with 15,000 SF of live/work+ space in a separate wing.
1	Community Context	Locate near public transportation	Located within 10 minutes walking distance of Metro train, bus station and 15 minutes if an intercity bus terminal.
2	Site Design	Pedestrian/bicycle friendly	Adjacent to miles of park roads and trails. Bike locker is availabe inside the building. Parking is off-site in an underutilized county garage.
3	Building Design	Daylighting	Daylighting was studied by an energy model and determined to exceed code by 40%.
		Passive Heating/Cooling	Shading on southwest elevations achieved via green screens and deep overhangs on south facing facades and walkways. Vegetated courtyard helps alleviate summer heat buildup.
		Green roofs/cool roofs	Green "living" roof controls rainwater runoff and provides thermal protection. Green roof made on a modified IRMA roof with precast concrete pavers serving as walkways and patio space on the roof deck. Trellises supporting deciduous vines incorporate plantings that are drought resistant and soils that greatly reduce stormwater discharge.
		High Performance Building Envelope	Walls: 5" batt insulation, existing masonry wall and an added exterior of 1-1/2" EIFS.(R-25); Roof: 3" extruded polystyrene rigid board insulation (R-18). Thermally broken double-pane windows, U-value: 0.40.
4	Water Conservation and Management	Stormwater Management	Green roof controls stormwater runoff - trellises supporting deciduous vines incorporate plantings that are drought resistant and soils that greatlycontrol rainwater runoff. Changing the existing paved parking court to a garden increased permeability and extensive plantings help absorb runoff.
4	Water Conservation and Management	Water Saving Appliances	Fixtures are low-flow.
5	Energy Efficiency	Energy Efficiency Heating and Cooling	Single-loaded configuration of 80% of the units allows for effective cross-ventilation. Geothermal system lowers energy costs for residents, involves reticulating distilled water through forty 650' deep wells to individual ground source heat pumps. It is a closed loop system that requires minimal long-term maintenance. Provides estimated 35% energy savings compared with ASHRAE 90.1-1999.
5	Energy Efficiency	Energy Star Appliances/Lighting	Appliances are Energy Star rated; lighting is high efficiency.
7	Recycling	Recycled Content Materials or Recycling On Site	Over 40% materials manufactured locally. 70% of construction waste from demolition was recycled offsite. Recycling bins for glass, metal and paper products are provided for residents and picked up weekly.
8	IEQ	Limit Emissions/moisture/sound/allergens	Low-VOC paints, adhesives, sealants and carpet systems.