Perfectly situated in the we-never-heard-of-it-either Treadwell Farms Historic District on the Upper East Side, this $14.79 million townhouse at 215 East 61st Street, originally built in 1875, survived a two-year renovation and emerged as a “seamlessly cohesive modern home encased within historic architecture.” Within are five stories plus a finished basement and an elevator to navigate them. Five exterior spaces were created to match, including a bluestone-paved landscaped garden with a cedar fence, an automatic watering and lighting system, a sound system and a gas grill.

Take the five-story elevator tour