After almost four years of work by realtors, homebuilders and others, the Triangle Multiple Listing Services, Inc. (TMLS), which includes 16 counties in the greater Triangle area, has agreed to add new categories to home listings that detail green building features. As of March 11, the MLS has implemented new "green" categories on listings, including green building certifications (select up to 3: Energy Star Homes, GHBT Green Certified Home, NC Healthy Built Home Certified, LEED-H Certified) and 19 categories, including the following features:

Solar hot water Tankless water heater
Geothermal heat system (closed loop) Sealed crawl space
No-Low VOC in paints, sealants, varnishes Spray foam insulation
Engineered Wood products EPA Watersense Plumbing Fixtures
Energy Star Appliances Energy Star Lighting Fixtures

Sealed Combustion Fireplaces/
Woodstoves

 Photovoltaics - Solar Power
Advanced Framing/Concrete Construction Infill lot
Rainwater collection Xeriscaping / Drought resistant plants
Fresh air ventilation Recycled Construction / Household waste
Radiant heated floors