“There was a significant price premium for the E+ Solutions Highlands St. homes,” said Foley. Those homes were listed at $450 per sq. ft., while the area average was around $375 per sq. ft., and the price at which the Marcella St. project units were listed. “The average of the two sales prices for the E+ Solutions homes had a 22.7 percent price-per-square-foot premium over the Marcella St. homes. We sold all four units of Highlands at asking price before they sold two of their units. Buyers were speaking with their wallets about the value of sustainability,” he says.