Image courtesy of Goldman Copeland

A partial tear-down and retrofit in Ossining has transformed into the greenest house in Westchester.

Dan Colombini, a principal at New York City-based Goldman Copeland engineering firm, “set out to create a new standard of suburban living,” the company said in a statement. His family residence is now the county’s first certified LEED platinum zero-energy passive house. The three-bedroom, 3,500-square-foot house includes an attached garage.

“Energy-efficient and green design is vital, given the challenges of climate change,” Colombini said in a statement. “This house provides the home that my family wanted, while demonstrating that the highest standards can be attained cost-effectively. I hope that it provides an example that can benefit Westchester, New York and the nation.”

The construction costs were 8 percent higher than a traditional, expenses that will be recouped by energy savings in ten to 15 years.

The house is adjacent to the Teatown nature preserve, and the property features plantings and landscaping consisting solely of native species.

Christina Griffin of CGA Studio was the project’s architect. Ed Nugent of Fort Montgomery was the contractor and Barbara Restaino of Grahamsville-based Restaino Design was the landscape designer. The house was certified by Integral Building + Design in New Paltz.