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.”

Duplex Residence 8A/9A offering three bedrooms, three and a half bathrooms with 2,479 interior square feet with an additional 864 square feet of private outdoor space, creating a 3,343 square foot indoor and outdoor footprint. When valuing the outdoor at 50% of the interior, the residence presents a compelling investment at just $1,615 per square foot, the home delivers exceptional long term value, especially rare for a duplex with this scale and light.

Direct elevator access on both levels enhances privacy, while south, east and north exposures fill the home with natural light. The great room features dramatic double height ceilings and floor to ceiling windows, opening directly to one of two private terraces for seamless indoor–outdoor living. A dedicated northeast corner dining room sits adjacent to the kitchen.

A sculptural staircase with floating oak treads and a custom glass railing leads to the upper level. Elevated details throughout include an OEA faucet package, Simonswerk concealed hinges, Comelit entry panel and central HVAC with discreet diffusers and recessed shade pockets.

The Italian Aster Cucine kitchen with an island pairs walnut cabinetry with honed Grigio Nicola marble and a full suite of Gaggenau appliances, panel ready refrigerator, freezer, dishwasher, five burner gas range, cabinet oven, and speed oven. Additional features include a Thermador 40 bottle wine and beverage cooler, Bosch pullout hood, Julien stainless steel sink, and integrated recycling bins.

All three bedrooms feature ensuite bathrooms. The northeast corner primary suite offers generous closets and a serene five fixture bath with an Aster Cucine floating double vanity, dual medicine cabinets, heated floors, Kartell Laufen wall hung toliet, deep soaking tub, and oversized rain shower. The two secondary windowed bathrooms feature Aster Cucine vanities, medicine cabinets, deep soaking tubs with glass guards, and NK toilets.

A well placed powder room includes a Kartell Laufen wall mounted toilet, floating vanity with marble countertop, and oversized mirror. An unit Bosch washer/dryer adds everyday convenience.

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.