NEW YORK—Building sustainably is a growing trend, but there is a prevailing perception that it costs more to go green. Not true, says a study conducted in New York City recently by global construction consultants Davis Langdon and the Urban Green Council.

“I think if you ask the average developer, they would say it [green building] costs more,” said Russell Unger, executive director of the Urban Green Council. The results from “The Cost of Green in NYC” study debunked the cost myth with a comparison of the average cost per square-foot for certified green and non-certified construction.

Throughout 2008, data were gathered on 107 projects throughout the five boroughs of New York, 63 of which were either pursuing or had achieved Leadership in Energy and Environmental Design (LEED) certification, the report said. Surveys were conducted for buildings with and without sustainability goals. Data points included construction costs, design fees, LEED design fees, LEED additional fees, and commissioning fees. The average square-foot construction cost for a high-rise residential building without LEED certification was $436; while the average cost with certification was $440.

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