Colorado Sustainable Design Awards: Residential Multifamily

1st place
Osage Apartments
Architect: Buchanan, Yonushewski Group LLC
Owner and developer: Denver Housing Authority
General Contractor: Milender-White Construction Co.
Mechanical, Electrical, Plumbing, Fire Protection Engineering and Energy Consultant: BCER Engineering, Inc.
OVERVIEW
1099 Osage Apartments is an eight-story, 100-unit housing development for low-income seniors and disabled residents. The mid-rise building features two wings, connected by a glass sunroom on each floor, taking advantage of the optimal solar orientation. Units feature energy-efficient appliances, CAT 5 wiring for Internet access and cable wiring.
The building is expected to receive LEED Platinum certification and will use 50 percent less energy than a comparable code-compliant building.
1099 Osage Apartments is the first of several developments defining a new standard for sustainable neighborhood development developed by the Denver Housing Authority (DHA).
SUSTAINABLE FEATURES
›› The first multifamily graywater reuse system in the state and first PLDs (porous landscape detention). The pilot graywater reuse system for 25 percent of building occupants will help achieve a 40 percent reduction in water use from LEED baseline. Wastewater from showers and sinks will be recirculated to fill toilets.
›› Ground-source heat pump system for building cooling and heating.
›› Daylight-focused design.
›› Operable windows in each unit allow for air flow. Low-SHGC glass was used to prevent over-heating in the summer and reduce utility bills.

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