A rendering of the monolithic crown at the top of 611 West 56th Street

Because of the slender nature of the tower, many floors have only one or two apartments, and more than half of the project’s 80 apartments will have direct, keyed elevator access. Sales are expected to launch later in September, with one-bedroom units from $1.26 million, two-bedrooms from $2.42 million, three-bedrooms from $4.22 million, and full-floor four-bedrooms from just over $11 million.

The Boundary