Foster + Partners’ 551 West 21st Street is a condominium on the Hudson River side of West Chelsea. Its gridded facade and large windows give it a different character from the neighborhood’s curved and sculpted apartment buildings.
- Address
- 551 West 21st Street, Manhattan
- Neighborhood
- West Chelsea
- Property type
- Condominium
- Design architect
- Foster + Partners
- Project completion
- 2015
Architecture and design
The facade frames the apartments in a regular grid. From the street, the contrast between the glazed openings and the surrounding frame is the building’s main architectural feature. The riverfront setting is part of the appeal, but the view still depends on the apartment’s position and floor.
The residences
Compare the depth of the living room, the width of the window wall and the arrangement of bedrooms. An open room facing the river can feel very different from one with a side exposure. Review the actual floor plan and confirm which windows are operable.
The location
The building is on West 21st Street near Eleventh Avenue, between the Hudson River waterfront and the High Line. This part of Chelsea combines galleries, apartment buildings and waterfront recreation. Visit the block at different times to assess traffic, construction and the walk to the transport you use.
Services and building review
Ask for the current concierge, fitness and building-service schedule, along with the charges for any storage or parking associated with the apartment. Confirm what is included in the common charges and what requires a separate agreement.
What to compare before buying
Compare its regular facade and river-facing setting with One High Line’s angled towers and Lantern House’s projecting bay windows.
Review the current common charges, real estate taxes, assessments, reserve funding, insurance and planned work with your attorney. Confirm the rules for intended occupancy, leasing, renovations and ownership structure. A recognizable building name does not replace apartment and condominium due diligence.
Current availability
Ask us for current listings and a comparison of the relevant apartments in 551 West 21st Street. Availability, asking prices and building charges change; inclusion in this guide does not mean an apartment is offered for sale.
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Tell us the space you need, your timing and how you intend to use the apartment. We can help compare the building and the homes available within it.
Building and image sources
Foster + Partners: project / building record. Image sources are credited with the photographs. Updated October 20, 2026.