245 Seventh Ave.
Two-bedroom, 2 1/2-bath duplex penthouse condo, 4,100 square feet, with entry gallery, living room with floating staircase to conservatory, pear-wood and limestone kitchen with skylight and French doors opening onto bi-level, 800-square-foot landscaped terrace with gas grill and hot tub; building features doorman. Common charges $2,752, taxes $4,803. Asking price $7,995,000, on market nine weeks. Brokers: Stephen McRae, Sotheby’s and Adrian Noriega, Core