At a glance
Firm: Anbau (Anbau Enterprises) Principals: Stephen Glascock (Founder & Chairman) and Barbara van Beuren (Co-owner & Vice Chair) Founded: 1998 (New York City) Headquarters: New York, NY (Flatiron / NoMad) Focus: Boutique, design-forward luxury condominium development in prime Manhattan neighborhoods — Chelsea, Flatiron, the Upper West Side, and the Upper East Side — typically at sub-50-unit scale Frequent design partners: BKSK Architects, Morris Adjmi Architects, COOKFOX Architects, SHoP Architects Guiding thesis: "Good design makes good business" — an architecture-led firm that builds a small number of highly detailed, neighborhood-sensitive buildings one at a time Signature reputation: Among the most consistently design-driven boutique condominium developers in Manhattan, with a strong sustainability and quality record Source: The Roebling Team at Compass — verified against public records, court filings, and published reporting. July 2026.
Who Anbau is
Anbau is the firm of Stephen Glascock and Barbara van Beuren — a husband-and-wife team, both trained in architecture at the University of Pennsylvania, who built the company around a single conviction: that design is not a cost center but the source of a building's value. Glascock founded Anbau in 1998 after a run as a senior development officer at another New York firm; he holds graduate degrees in both architecture and real estate development and leads the firm's finance and construction. Van Beuren joined in 2002 and serves as Vice Chair, overseeing strategy, acquisitions, and the design, marketing, and sale of the firm's condominiums; she comes from a design-minded, philanthropic family and chairs a family charitable foundation focused in part on the built environment.
For a buyer, the defining trait is discipline. Anbau does not build at volume. It develops a small number of highly considered condominiums, one project at a time, in established Manhattan neighborhoods — and it competes on architecture, detail, and context rather than on scale. That posture has made the firm a recurring collaborator with some of New York's most respected design offices, and it is the through-line of the entire portfolio.
What they build
Anbau's signature is the architecture-led boutique condominium — typically fewer than 50 residences, built to a distinct design point of view and engineered to sit naturally within its block. The firm's design roster is genuinely a survey of contemporary New York architecture: BKSK Architects, Morris Adjmi Architects, COOKFOX Architects, and SHoP Architects have all designed Anbau buildings, with interiors by studios such as Clodagh and landscape work by firms like Future Green Studio. The result is a product line defined by craft — handmade terracotta facades, planted loggias, contextual masonry — rather than by a single house style.
Sustainability runs alongside the design ambition. Multiple Anbau buildings carry LEED Gold or Silver certification, and the firm's environmental posture — high-performance envelopes, greenery integrated into the architecture — is a consistent feature rather than a marketing afterthought. The buildings tend to be full-service and owner-focused, pitched at buyers who want new construction with a real architectural identity at intimate scale.
Buildings by Anbau
Anbau projects already profiled on this site:
- 39 West 23rd Street (Flatiron House) — the 2018 COOKFOX-designed condominium of 44 residences spanning the full block from West 23rd to West 24th Street, linked by a planted garden and a glass walkway near Madison Square Park
- 207 West 79th Street (207W79) — a 2017 Morris Adjmi condominium of 19 residences with a handcrafted terracotta facade, approved by the Landmarks Preservation Commission inside the Upper West Side / Central Park West Historic District
- 124 West 23rd Street (Citizen) — a 2012 BKSK-designed, LEED Gold Chelsea condominium with a glazed-brick and terra-cotta facade composed to converse with its pre-war neighbors
- 428 West 19th Street (Linea) — a recent BKSK-designed boutique condominium of 32 residences on a quiet West Chelsea block steps from the High Line
Other notable Anbau work includes Citizen360 (360 East 89th Street) — a SHoP Architects tower with interiors by Clodagh — and 155 East 79th Street, a retail-to-condominium conversion by BKSK on the Upper East Side.
Track record and market performance
Anbau's record is strong precisely where its thesis promises it should be: design-led buildings that command a premium and sell through. Flatiron House was reported at a total sellout in the high three-hundred-million-dollar range and near sold out within a few years of completion; the firm's Upper East Side product has produced individual sales well into eight figures, including a headline-making four-bedroom contract. Across the portfolio, the trade press has consistently treated Anbau as a quality name — a developer whose buildings win on architecture, detail, and neighborhood fit. For a buyer, that track record points to a developer whose pricing the market has repeatedly validated and whose buildings hold a distinct identity in resale.
Reputation and what a buyer should know
On build quality, Anbau's completed condominiums have a clean record. Across Citizen, 207W79, Flatiron House, Linea, and Citizen360, the public records, court filings, and published reporting reviewed for this profile turned up no construction-defect litigation, no condo-board suits against the sponsor, and no verified pattern of homeowner defect complaints — facade, water intrusion, mechanical, or structural. That is consistent with the firm's design-and-quality reputation.
The disputes that do appear are commercial and routine, not quality-related. During the development of its 124 West 23rd Street project, Anbau was the plaintiff in a neighbor-access dispute — a standard adjacent-property license fight that developers regularly bring to complete construction, and one that reflects nothing about the finished building. No mechanic's liens, contractor-payment fights, foreclosures, or lender litigation against Anbau's buildings appeared in the record reviewed.
One clarification worth stating plainly, since the two are sometimes conflated: "The Jefferson" (211 East 13th Street) is not an Anbau building — it was developed by a different group — and Anbau's Flatiron House at 39 West 23rd Street has never carried that name. This profile treats only projects that Anbau actually developed.
For a buyer, standard new-development diligence applies with no red flag specific to this sponsor: read the offering plan, confirm lien and title status, and review the warranty and punch list.
The Roebling Team on Anbau 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 an Anbau 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 Anbau. © 2026 The Roebling Team at Compass.