View of Roosevelt Island, NYC and the Southtown Riverwalk Housing Complex.


Project Details
- Address: Roosevelt Island, NY
- Owner: The Hudson Companies Incorporated
- and Related Companies
- Architect: SLCE Architects, Gruzen Sampton LLP,
- and Costas Kondylis & Partners LLP
- Status: Partially Completed
Project Key Features
Riverwalk is an approximately 1.2 million square foot, 19 acre planned community on a waterfront setting. Community includes nine buildings and 2,000 new units of housing, a new central retail commons at the subway station and new recreational facilities for all of the island’s residents. The first seven residential buildings have been completed, along with the new Main Street, new ball fields and retail and childcare facilities.

475 Main Street - Building 1
- Address: 475 Main Street, Roosevelt Island, NY
- Owner: The Hudson Companies Incorporated
- and Related Companies
- Architect: Gruzen Samton Architects
- with SLCE Architects
Project Key Features
Ettinger Engineering Associates is the MEP/FP engineer of record for Riverwalk Landing, 475 Main Street (Building 1). The building provided staff housing for Memorial Sloan Kettering Cancer Center. The building is a total of 256 units and approximately 210,840 square feet. Project was completed in 2003 with construction managed by Monadnock Construction Inc.
465 Main Street - Building 2
- Address: 465 Main Street, Roosevelt Island, NY
- Owner: The Hudson Companies Incorporated
- and Related Companies
- Architect: Gruzen Samton Architects
- with SLCE Architects
Project Key Features
Ettinger Engineering Associates is the MEP/FP engineer of record for Riverwalk Landing, 465 Main Street (Building 2). The building provided staff housing for Weill Cornell Medical College. The building is a total of 163 units and approximately 149,000 square feet. Project was completed in 2003 with construction managed by Monadnock Construction Inc.

455 Main Street - Building 3
- Address: 455 Main Street, Roosevelt Island, NY
- Owner: The Hudson Companies Incorporated
- and Related Companies
- Architect: Gruzen Samton Architects
- with SLCE Architects
Project Key Features
Ettinger Engineering Associates is the MEP/FP engineer of record for Riverwalk Landing, 455 Main Street (Building 3). The building is a market-rate condominium; with certain units sold to Weill Cornell Medical College. The building is a total of 218 units and approximately 235,000 square feet. Project was completed in 2006 with construction managed by Monadnock Construction Inc.

425 Main Street - Building 4
- Address: 425 Main Street, Roosevelt Island, NY
- Owner: The Hudson Companies Incorporated
- and Related Companies
- Architect: Gruzen Samton Architects
- with SLCE Architects
Project Key Features
Ettinger Engineering Associates is the MEP/FP engineer of record for Riverwalk Landing, 425 Main Street (Building 4). The building is a market-rate condominium; with certain units sold to Memorial Sloan- Kettering Cancer Center and New York University. The building is approximately 240,000 square feet, including 10,000 sq. ft. of retail. There are a total of 230 total units, including 96 units for MSK and 48 units for NYU. Project was completed in 2007 with construction managed by Monadnock Construction Inc.

405 Main Street - Building 6
- Address: 425 Main Street, Roosevelt Island, NY
- Owner: The Hudson Companies Incorporated
- and Related Companies
- Architect: Costas Kondylis & Partnership LLP
Project Key Features
New, 16-story, 240,000 square foot rental apartment building with 242 units. Amenities include state-of-the-art health and fitness center, entertainment lounge, daycare, kitchen and rooftop dining terrace. Riverwalk Crossing is part of a development encompassing 19 acres with approximately 2,000 market rate full-service rental apartments on a waterfront setting.