In the heart of bustling and ever-expanding Chelsea, a seven-story, 6,500 square-foot new-construction townhouse stands seductively for sale at 338 West 15th Street. Listed for $13.395 million, the home represents a new kind of opportunity in more ways than one. In addition to being meticulously finished with the most luxurious materials available and possessed of endless space both indoors and outdoors, a $1 million discount is offered to a buyer who is an employee of Google. And that (not-so-) little extra perk for a potential Google buyer is intended as a celebration of the company’s exciting expansion within the Chelsea neighborhood. And with more Google ownership in the neighborhood in the form of the just-purchased Chelsea Market (a $2.5 billion deal), there could be a daily bonus of a seven-minute walk to work.