At a glance
Firm: Magnum Real Estate Group Founder & principal: Ben Shaoul (President) Founded: Late 1990s (New York City; co-founded by Ben Shaoul with his parents) Headquarters: New York, NY Focus: Downtown-centered condominium development — landmark and office-to-residential conversions and ground-up boutique buildings, concentrated on the Lower East Side, East Village, Tribeca, and Chelsea Frequent design partners: Ismael Leyva Architects, CetraRuddy, Issac & Stern Architects Portfolio scale: More than 100 properties acquired and sold over the firm's history; a large, actively traded downtown book Signature reputation: A prolific downtown converter with a well-known, sometimes controversial landlord history — and a for-sale product record that, on the public evidence, is clean on build quality Source: The Roebling Team at Compass — verified against public records, court filings, and published reporting. July 2026.
Who Magnum Real Estate Group is
Magnum is the firm of Ben Shaoul, a Queens-born, Great Neck–raised developer who left community college at nineteen, apprenticed with an established development family, and founded Magnum in the late 1990s with his parents. He bought his first building in Nolita in 1999 and spent the following decade assembling one of the more active downtown portfolios in the city — first as a landlord and renovator, and later as a condominium developer and converter.
For a buyer, the relevant distinction is between the two chapters of Shaoul's career, because they carry very different reputations. The earlier chapter — buying older and rent-regulated buildings on the Lower East Side and in the East Village, relocating or buying out tenants, gut-renovating, and repositioning — earned Shaoul a hard-edged public image and a nickname to match. The later chapter — the landmark conversions and boutique condominiums covered below — is the one most relevant to a for-sale buyer, and on the public record it has a materially cleaner quality history. Both chapters are addressed plainly under Reputation.
What they build
Magnum's signature is the downtown conversion and boutique condominium. The firm's most ambitious work is adaptive reuse — most notably the restoration and residential conversion of a designated Art Deco landmark — but it also builds ground-up boutique buildings styled to sit inside their pre-war neighborhoods rather than tower over them.
The firm typically works with capital partners on its larger projects and with a recurring set of architects: Ismael Leyva Architects on the Tribeca landmark conversion and the Lower East Side ground-up work, CetraRuddy in Chelsea, and Issac & Stern Architects in the East Village. The product runs from a 157-plus-unit landmark conversion down to boutique buildings of a few dozen residences, and it is concentrated below 23rd Street.
Buildings by Magnum Real Estate Group
Magnum projects already profiled on this site:
- 140 West Street (One Hundred Barclay) — Ralph Walker's 1927 Art Deco Barclay-Vesey (former Verizon) landmark, converted to roughly 157 luxury condominiums by Magnum with CIM Group, 2014–2016, with more than 40,000 square feet of amenities
- 100 Avenue A — Magnum's boutique 32-unit East Village condominium facing Tompkins Square Park, designed by Issac & Stern Architects, completed 2017
- 133 West 22nd Street — a 2008 CetraRuddy-designed Chelsea condominium with an outdoor pool and full amenity suite, developed by Magnum with Ascend Group
Other notable Magnum work downtown includes 196 Orchard Street, the firm's ground-up Lower East Side condominium beside Katz's Deli (which also holds a large retail condominium Magnum later sold), and a long list of earlier East Village and Lower East Side repositionings and rental conversions.
Track record and market performance
Magnum's record is a high-volume downtown one, and it turns on adaptive reuse. One Hundred Barclay is the flagship: the conversion of a museum-grade Art Deco landmark into full-service condominiums with one of the deepest amenity programs downtown — a genuine achievement of preservation-plus-modernization, executed with a large institutional partner. That building's sales were slow and its top-end pricing was cut over time, a market-and-pricing outcome rather than a quality one. 196 Orchard delivered a ground-up condominium and a valuable retail base on a difficult assembled site; 100 Avenue A and 133 West 22nd are well-located boutique buildings that filled specific downtown niches. Across the book, the pattern is a developer who sources and executes complex downtown sites, sometimes at ambitious pricing that the market has repriced.
Reputation and what a buyer should know
Shaoul's reputation has two clearly separable parts, and a buyer should hold them apart.
The first is his rental-era landlord history, which is real, well-documented, and the source of his public image. In the mid-2000s and after, Shaoul's model was to buy older and rent-regulated downtown buildings and reposition them — with tenant relocations and buyouts, gut renovations, and rent increases. A 2006 confrontation at a St. Mark's Place building, in which his crew arrived with sledgehammers to remove doors during a standoff with holdout tenants, produced the "Sledgehammer" nickname and photographs that followed him for years; press coverage cast him as a face of the East Village's rapid luxurification, and there were allegations around permit filings and tenant protections, plus later litigation over the city's harassment-designation list. This is a landlord-tenant and rental-operations record — a matter of how he ran regulated rental buildings — and it is distinct from, and not evidence about, the construction quality of his for-sale condominiums.
The second part is that condominium quality record, and on the public evidence it is clean. Our review of public reporting and court filings turned up no genuine construction-defect litigation — no facade, water-intrusion, mechanical, or structural defect suit — at One Hundred Barclay, 196 Orchard, 100 Avenue A, or 133 West 22nd Street. (A note on a common confusion: the widely reported "thousands of cracks" defect saga on Park Avenue belongs to 432 Park Avenue, a different building by different developers; Magnum's One Hundred Barclay shares one institutional partner with that project but nothing else, and the defect history does not apply to Magnum.) The one dispute we found at a completed Magnum condominium is at a Tribeca building where the board alleged the sponsor underfunded the reserve fund — a financial and reserve-adequacy claim, contested by the sponsor, not a building-defect claim. An earlier family lawsuit between Shaoul and his parents over refinancing proceeds was a business dispute that resolved. None of these bear on how the buildings were built.
For a buyer, standard new-development and conversion diligence applies: read the offering plan, confirm lien and title status, review the warranty, and — given the reserve-fund dispute noted above — pay particular attention to the building's reserve funding and financial statements at closing. On the physical product, the completed condominiums carry no defect red flag in the public record.
The Roebling Team on Magnum 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 new-development transaction: what the developer has built, how those buildings have held value, and what to verify before you sign.
If you're evaluating a Magnum 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 Magnum Real Estate Group. © 2026 The Roebling Team at Compass.