550 West 21st Street
550 West 21st Street, New York, NY 10011
BBL 1006920053 · BIN 1091577
- Type
- Condominium
- Landmark
- No
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 550 West 21st Street would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.
550 West 21st Street is an 83-residence condominium on a nearly half-acre parcel at the southeast corner of West 21st Street and the Hudson River Greenway. Thomas Juul-Hansen is the architect. Published construction reporting describes it as a 23-story tower with a multilevel podium.
The project has changed hands and scope. Casco Development bought the site in 2014 for $50 million and planned a building of roughly 200,000 square feet with 34 condominiums and 43,510 square feet of commercial space. After Casco's bankruptcy in 2025, Legion Investment Group took over with a $56 million Deutsche Bank loan and a $155 million construction loan from Eldridge Real Estate Credit. The current plan is 83 residences, and the structure has now topped out.
What's planned
Renderings show a light beige brick facade around floor-to-ceiling windows, with loggias and setbacks topped by terraces, and a landscaped motor court entered from West 21st Street. The facade is framed in metal studs and insulation board at the openings as of July 2026; window and cladding installation had not begun.
The unit mix, amenity program and interior design have not been published. Confirm them in the offering plan once accepted.
Timeline and filings
- 2014: Casco Development acquires the site for $50 million (published reporting).
- 2025: Casco's project enters bankruptcy; Legion Investment Group takes over and closes the Deutsche Bank and Eldridge loans (October 2025 announcement).
- June 2025 onward: DOB alteration filings for the structure, including a 20-story, 250-foot filing, and a July 2026 filing at 83 dwelling units.
- November 21, 2025: The condominium plan is submitted to the Attorney General.
- February 2026: Published reporting shows only the podium and first tower floors formed.
- July 2026: Published construction reporting records the superstructure topped out.
- Later in 2026: Sales launch, as reported. Completion is reported for mid-2027 to late 2027.
DOB lists the structure under 540 West 21st Street, as alteration filings. PLUTO still reflects the earlier 34-unit configuration.
Offering and pricing
The Attorney General's record shows 550 West 21st Street Condominium, submitted on November 21, 2025 by 550W21 Owner LLC, covering 83 residential units within 119 total units. No acceptance date and no total offering price appear as of October 2026.
Published reporting says residences will start at $2.5 million. Treat that as a reported starting price; the plan's price schedule governs once accepted.
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What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 550 West 21st Street and nearby.
Buying here? Condo closing costs with a mortgage typically run 3 to 6% of the price. See NYC co-op and condo closing costs, line by line.
What to know if you’re buying
Reservations are non-binding until the plan is accepted. Any reservation or expression of interest signed before the Attorney General accepts the condominium offering plan can be withdrawn, and no purchase contract can be signed until the plan is accepted.
Deposits are typically 10 to 20 percent, held in escrow. The exact deposit schedule, the sponsor's closing conditions and the outside closing date are set in the plan and the purchase agreement. Have counsel read both before signing.
Closing costs run to the buyer in sponsor sales. Buyers customarily pay the New York State and New York City transfer taxes that would otherwise fall on the seller, plus the mansion tax on purchases of $1 million and above. Use the calculators below to size them.
Closings take place on a temporary certificate of occupancy. Closings are scheduled once the building has a temporary certificate of occupancy; the permanent certificate follows later.
The budget, common charges and any abatement come from the plan. Projected common charges, real estate taxes and any tax benefit are set in the plan's first-year budget. Confirm them in the filed plan rather than in marketing material.
Ask about the building's change of hands. Request the plan's disclosure on the prior project and its construction history, including how the original foundation and structure are being completed under the new sponsor.
DOB records an alteration, not a new building. Confirm in the plan how the certificate of occupancy will be issued and what DOB filings remain open.
Waterfront site. Ask whether the parcel is in a flood zone and how any insurance requirement affects the budget.
Comparable buildings
- 551 West 21st Street — condominium across West 21st Street
- 500 West 21st Street — new-construction condominium on West 21st Street
- 100 West 18th Street — new-construction Chelsea condominium
- 125 West 21st Street — condominium on West 21st Street
- 153 West 21st Street — condominium on West 21st Street
More Chelsea buildings
- 527 West 27th Street — 2015 condominium
- 532 West 20th Street — 2021 condominium by DDG
- 540 West 28th Street (+Art) — 2010 condominium
- 550 West 29th Street — condominium by Hill West Architects
- 551 West 21st Street — 2015 condominium by Foster + Partners
- 555 West 23rd Street (555W23) — 2005 condominium by Stephen B. Jacobs Group
The neighborhood
For the full corridor — architecture, transit, and pricing across Chelsea — read The Roebling Team Guide to Chelsea.
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent. Where this page compares one building or neighborhood to another, that is our analysis of the recorded record — it names the measure, the period and the sample it rests on, and it is an observation about medians rather than a prediction about any particular apartment.
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