At a glance
Firm: The Moinian Group Founder & principal: Joseph Moinian (Founder & CEO) Founded: 1982 (New York City), beginning with a Midtown South office building Headquarters: New York, NY (3 Columbus Circle, a Moinian-owned office tower) Focus: Large, diversified development and ownership — office, residential rental, condominium, hotel, and retail Portfolio scale: Reported at roughly 20 million square feet across New York and several other markets (a firm-reported figure) Frequent design partners: David Rockwell / Rockwell Group (Sky); Costas Kondylis (Atelier); Gwathmey Siegel (W Downtown); Starrett & Van Vleck (the original 1930 Downtown Athletic Club) Signature reputation: A prolific, long-tenured New York developer that has completed large and complex projects — carrying a real history of commercial and financial disputes that a buyer should keep firmly separate from questions of building quality Source: The Roebling Team at Compass — verified against public records, court filings, and published reporting. July 2026.
Who The Moinian Group is
The Moinian Group is the firm of Joseph Moinian, an Iranian-born developer who immigrated to the United States as a teenager, began in the apparel business, and used those earnings to enter New York real estate. He founded the firm in 1982 with a Midtown South office acquisition and, over four decades, built one of the largest privately held real estate portfolios in the city — a genuinely diversified book spanning office towers, large rental buildings, condominiums, and hotels. The firm is headquartered in one of its own trophy office assets, 3 Columbus Circle.
For a buyer, the important framing is twofold. First, Moinian is a prolific and durable operator with a demonstrated ability to complete large, complicated projects, including sites that stalled during downturns and were later brought to the finish. Second, Moinian is a highly leveraged, diversified owner, and that profile has produced a recurring pattern of commercial and financial disputes over the years. Both facts are real, and — as detailed below — a buyer evaluating a specific building needs to hold them apart from each other, because the firm's financial history is not the same thing as the physical quality of a given residence.
What they build
Moinian's portfolio is diversified by design: large Class-A office towers, some of the biggest rental buildings in Manhattan, condominium conversions of historic structures, and branded hotel-residential product. The firm is known for taking on large, complex, and sometimes stalled sites and completing them — the marquee example being Sky at 605 West 42nd Street, a recession-era "zombie" project that Moinian ultimately delivered as one of the largest free-standing apartment towers in New York.
Its design partners span the modern skyline: David Rockwell / Rockwell Group shaped the interiors and amenities at Sky; Costas Kondylis designed the neighboring Atelier condominium; Gwathmey Siegel designed the W-branded tower at 123 Washington Street; and Moinian's most historically resonant residential project reused the Starrett & Van Vleck Art Deco landmark of the former Downtown Athletic Club.
Buildings by The Moinian Group
Moinian projects already profiled on this site:
- 20 West Street (The Downtown Club) — Moinian's condominium conversion of Starrett & Van Vleck's 1930 Art Deco tower, the former Downtown Athletic Club and birthplace of the Heisman Trophy, completed in 2005–2006 on fee-simple Financial District land
Other notable Moinian buildings (pages to follow or not yet profiled here): Sky (605 West 42nd Street) — the roughly 1,170-unit Rockwell-designed rental tower; Atelier (635 West 42nd Street) — a Costas Kondylis condominium adjacent to Sky; the W New York Downtown Hotel & Residences (123 Washington Street) — the first W-branded residential building in Manhattan; and Oskar (572 Eleventh Avenue), a Far West Side rental.
A note on attribution. 100 West 58th Street (Windsor Park) is sometimes associated with Moinian, but independent published reporting attributes that 2005 hotel-to-condominium conversion to a different sponsor group. Because we verify each project's actual developer rather than repeat an attribution, we do not present Windsor Park as a Moinian building on this page.
Track record and market performance
Moinian's record is that of a long-tenured, high-volume New York developer with several completed, well-located buildings to its name. The firm's ability to finish large and difficult projects is genuine — Sky is the clearest example, a stalled Far West Side megaproject that Moinian recapitalized (at one point in partnership with an institutional co-investor it later bought out) and delivered at scale. On the condominium side, the Downtown Club conversion turned one of Lower Manhattan's most historically significant towers into for-sale homes on fee-simple land, and the W Downtown brought branded hotel-residential product to the Financial District.
The buildings themselves sit in established, liquid submarkets. Where a buyer should apply extra care is not the physical product but the capital history around the developer, which is covered below.
Reputation and what a buyer should know
Moinian's reputation requires an unusually careful distinction between commercial and financial disputes, which are real and recurring, and building-quality defects, which are far more limited. A buyer should not read the first as evidence of the second.
Commercial and financial history (not building defects). As a highly leveraged, diversified owner, Moinian has a documented pattern of loan defaults, mortgages sent to special servicing, foreclosure filings, and litigation with lenders and partners across its commercial portfolio. The best-known chapter was the fight over 3 Columbus Circle around 2010–2011, when Moinian defaulted on the debt at the then-mostly-vacant tower, a rival investor group bought the mortgage in a "loan-to-own" attempt, and Moinian ultimately rescued the asset by bringing in a recapitalization partner. More recently, several Financial District and Midtown assets have cycled through default, special servicing, and refinancing. These are matters of leverage and cash flow across a large commercial book — they bear on how the firm manages debt and capital partners, but they are not building-defect claims, and none of them concern the physical condition of a condominium a buyer would purchase.
Building-quality history (the part that actually bears on a residence). Here the record is narrower and specific. The one Moinian residential building with genuine construction-defect and condo-board litigation is the Atelier (635 West 42nd Street), not among the buildings profiled here. The Atelier's board sued Moinian over building-systems and common-element issues — including allegations of a defective HVAC system, water intrusion into a common playroom, and disputes over amenity access after Moinian retained the amenity spaces and built the adjacent Sky rental. Moinian characterized the claims as meritless. We state this plainly because it is the real defect-adjacent record, and it belongs to a specific building.
For the Moinian building profiled on this site — 20 West Street, The Downtown Club — we found no construction-defect litigation against the developer. As a converted 1930 landmark, the building carries the ordinary upkeep obligations of any tower of its age (facade-inspection cycles, masonry maintenance, and the water-management demands of a waterfront-adjacent Financial District site), but those are aging-building maintenance items, not sponsor defect claims. On the physical product delivered by Moinian, the Downtown Club appears clean.
Frivolous, NIMBY, and routine zoning matters are not treated as issues here. For a buyer evaluating any Moinian building, standard conversion and new-development diligence applies, with one sharpened lens: read the offering plan and confirm the reserve fund and any sponsor-contribution history; confirm lien, title, and any open mechanic's-lien or judgment status at the specific building; and understand that the firm's broader financial disputes, while real, live on the commercial side of the portfolio rather than in the condominium you are buying.
The Roebling Team on Moinian buildings
We publish developer profiles because a buyer choosing a new-construction or recently-converted condominium is, in part, betting on the developer — its quality, its staying power, and its record when things go wrong. The Roebling Team at Compass tracks the sponsors behind Manhattan's luxury inventory building by building, and we bring that context to every transaction: what the developer has built, how those buildings have held value, and — importantly, in this case — how to tell a firm's financial noise apart from the physical quality of a specific residence.
If you're evaluating a Moinian building — or weighing it against another sponsor's product — a 30-minute consultation is the right starting point.
Corey Cohen, Principal · The Roebling Team at Compass 646.939.7375 · c.cohen@compass.com
This developer profile reflects publicly available information — including NYC public records, court filings, and published reporting — and The Roebling Team's transaction experience. It is provided for research purposes and is not legal advice; nothing here alleges wrongdoing or building defects beyond what the cited public record supports. The Roebling Team at Compass does not represent The Moinian Group. © 2026 The Roebling Team at Compass.