New York City is known for its competitive real estate market. Condos are often bought and sold before a listing is made public. While sellers usually don't have a problem finding a buyer, they are always looking for new and inventive ways to increase their asking price. A popular way to to do this is by increasing a home's energy efficiency. Many buyers are attracted to the prospect of paying little to nothing for monthly energy bills in addition to doing their part to protect the environment.

According to The New York Times, several developers in the city are constructing what they hope to be Leadership in Energy and Environmental Design (LEED)-certified condominium buildings. Most of their properties include features like LED bulbs, solar shades, recycled cabinets and rainwater irrigation systems.  Some builders like Michael Namer, CEO of Alpha Development, think that LEED certification is not enough. According to him, sustainability should be their true goal.

"We made a commitment almost seven years ago to start working on innovative construction and making sustainable buildings, so that it becomes the default way to build," Namer told the Times.

Namer's properties have quickly attracted many buyers interested in green living. Perry Greenberg, a resident of Namer's Village Green development, told the source that she was drawn to the space because of the time and effort that was put into creating it.

Across the country, more Americans are realizing how green building can benefit their homes. If you're considering making any major changes to your house to increase its energy efficiency, make sure you schedule a home inspection first.