SIVA Tower, designed by Pritzker Prize–winning architect Álvaro Siza with interiors by Gabellini Sheppard, is a rare architectural landmark on Manhattan’s West Side. Clad in Perla Bianca limestone and rising as a slender sculptural form, the tower offers only 77 residences, each conceived with Siza’s signature precision, calm, and timeless restraint.

Positioned within Hudson West, just north of Hudson Yards and moments from Lincoln Center, Columbus Circle, Waterline Square, and Billionaires’ Row, this is the most refined addition to the West Side’s emerging “architects’ row.”

Residence 11 is a full-floor, four bedroom, four and a half bath triple-corner home spanning 3,357 square feet, offering extraordinary scale, privacy, and light. Arrival is an experience with two private elevators open into an exclusive landing and gallery wrapped in rift-cut oak paneling and softly illuminated by a cove-lit floating oak ceiling which also incluses a dedicated refuse room with recycling and a separate laundry room with a washer, dryer, and utility sink.

The residence features 5-inch oak flooring and oversized windows wrap the perimeter, bathing the interiors in natural light and capturing dramatic vistas throughout the day. At the heart of the home, a 572-square-foot great room offers distinct zones for living, dining, and entertaining, elevated by refined details including an OEA faucet package, Simonswerk concealed hinges, a Comelit entry system, and central HVAC with discreet linear diffusers and recessed shade pockets. A perfectly positioned powder room sits just off the foyer, providing seamless access for guests while preserving privacy for the bedroom wing.

The windowed, eat-in Italian Aster Cucine kitchen and island, pairing warm walnut cabinetry illuminated by edge lighting with honed Grigio Nicola marble on the countertops and backsplash. A full suite of Gaggenau appliances includes a 48-inch panel-ready refrigerator, freezer, dishwasher, five-burner gas range, two cabinet ovens, a speed oven, warming drawer, and an 80-bottle wine and beverage cooler. Additional professional-grade details include a Bosch pullout hood, Julien stainless steel sink, integrated recycling bins and a double full height pantry.

All four bedrooms feature ensuite bathrooms. The double-corner primary suite is a sanctuary of its own, offering a windowed dressing room and a five-fixture bathroom with an Aster Cucine floating double vanity, dual medicine cabinets, heated floors, a Kartell Laufen wall-hung toilet, deep soaking tub, and oversized rain shower. The three secondary bathrooms are all windowed and continue the elevated materiality with Aster Cucine vanities, medicine cabinets, deep soaking tubs with glass guards, walk-in showers, and NK toilets.

611 West 56th Street delivers a comprehensive amenity experience, including a Technogym Fitness Room with equipment by Antonio Citterio, dedicated Yoga and Boxing Rooms, men’s and women’s changing rooms with showers and illuminated steam rooms, a Children’s Playroom, a Media Room with billiards, and an elegantly furnished Residents’ Lounge by DDC and Minotti with a catering kitchen. A landscaped garden by M. Paul Friedberg, featuring original works by Álvaro Siza, anchors the building’s serene outdoor environment.

A 24 hour attended lobby, concierge, porters, management, cold storage, bike room, and supplemental laundry room ensure effortless living. Private storage and parking with direct lobby access are available for purchase.

The neighborhood offers immediate access to Hudson River Park, Riverside Park South, Pier 97, Pier 96 Boathouse, Pier 94 Sunset Studio, De Witt Clinton Park, and convenient transportation via the N, R, W, and 1 trains and multiple 57th Street bus routes.

THE COMPLETE OFFERING TERMS ARE IN AN OFFERING PLAN AVAILABLE FROM SPONSOR. FILE NO. CD18 0061. SPONSOR: 611 W 56TH STREET PROPERTY LLC, 520 WEST 27TH STREET, SUITE 302, NEW YORK, NY 10001.