During the National Association of Home Builders’ (NAHB) National Green Building Conference in May in Raleigh, N.C., eight residential projects were singled out for recognition in the association’s National Green Building Awards (read our coverage here). Single-family and multifamily projects, as well as remodels and complete developments, received Project of the Year awards.

The winners are:

Project of the Year – Single-Family – Custom/Luxury
The CharityWorks Greenhouse, by Cunningham|Quill Architects, Washington, D.C.
Conceived as a showcase of green design, the CharityWorks Greenhouse’s sustainable features include passive solar orientation, energy-efficient and renewable energy systems, access to transportation, and walkability to nearby retail. The 4,900-square-foot house provides a beautiful living environment, as well.

Project of the Year – Single-Family – Custom/Affordable
The Cottage, by J.R. Construction Building & Design, Petoskey, Mich.
The company’s first green-built home, The Cottage was the second in the United States to be certified at the Emerald level under the NAHB’s National Green Building Standard and is guaranteed to use 40 percent to 60 percent less energy than a comparable home built to minimum code. The 1,800-square-foot house features durable materials, such as bamboo flooring and marble countertops, a tightly sealed envelope and HVAC system, low-VOC paints and sealants, and a geothermal heat pump.

Project of the Year – Single-Family – Production/Luxury
Model 4/The Chadwick, New Old Green Modular home, by New World Home, Roswell, Ga., and New York.
The company’s New Old Green Modular (NOGM) line of modular homes is inspired by historic designs and built to reduce energy usage by more than 50 percent. Constructed in a factory and shipped to a site in Marietta, Ga., this 2,100-square-foot Model NOGM4 house boasts the charm of the southern Greek revival style and incorporates a variety of durable, energy-efficient, and environmentally friendly materials and systems.

Project of the Year – Single-Family – Production/Affordable
Rosewood Hills, by Mungo Construction, Irmo, S.C.
Located in Columbia, S.C., Rosewood Hills is the result of a partnership between Mungo Construction and the Housing Authority of Columbia. The neighborhood consists of LEED-H-certified affordable for-sale and rental units.

Courtesy Mungo Construction

Project of the Year – Remodeling
150 West Elm, by Green Street Development, Phoenix
The first remodeling project in the U.S. to achieve Emerald certification under the National Green Building Standard, the remodeling team reduced the carbon footprint of this 1,600-square-foot, 70-year-old ranch house by more than 70 percent. New Energy Star windows and appliances, an upgraded HVAC system, and new insulation reduced the home’s performance from a HERS 208 to a HERS 65.

Project of the Year – Multifamily – Luxury
Circle at Concord Mills, by Crescent Resources, Charlotte, N.C.
Located in Concord, N.C., this apartment community boasts energy-efficient units that feature a variety of sustainable and healthy building materials, including low-VOC paints and sealants, high-performance windows, Energy Star appliances, and kitchen recycling centers. The community’s clubhouse is pursuing LEED certification and offers preferred parking for hybrids and other fuel-efficient vehicles.

Project of the Year – Multifamily – Affordable
Wingate Manor, by Gundaker Commercial Group, St. Louis, Mo.
Offering 100 percent affordable senior living apartments, Wingate Manor is part of a larger multigenerational mixed-use community in Shiloh, Ill. Wingate Manor’s 48 apartments are a mix of one- and two-bedroom garden units.

Courtesy Gundaker Commercial Group

Development of the Year
FishHawk Ranch, by Newland Communities, Tampa, Fla.
The first green-certified residential community in the Tampa, Fla., area, FishHawk Ranch incorporates a variety of systems, practices, and policies that contribute to its sustainability. During planning, the company ensured the preservation of aquifer recharge areas, and each of this mixed-use development’s streets are lined with native trees. FishHawk Ranch also features more than 25 miles of trails connecting neighborhoods, schools, retail, and amenities.