37 Union Square West
Building Overview
37 Union Square West is a true boutique Union Square option for tenants that want direct park frontage, boutique floor plates, and a creative loft feel instead of a generic Midtown tower. Based on the leasing and public-record materials you provided, the building is marketed as a Class C office property with approximately 21,525 square feet of total area, though other public-facing records place it closer to 19,434 square feet, while another brokerage description cites roughly 25,200 square feet. The same variance appears in the building’s age and height: some sources describe it as a five-story property with a 1921 completion date, while other public records reference a 1910 vintage and separate marketing copy describes it as a six-story structure. For tenants and buyers, that does not change the core story: this is a small-format Union Square office building with real identity, real frontage, and a scale that suits boutique firms far better than a commodity office block.
What Tenants Are Leasing Today
Current marketing materials point to availabilities totaling about 4,450 to 9,075 square feet, including a 3rd-floor suite of 4,450 square feet and a 5th-floor suite of 4,625 square feet, both offered on negotiable terms and described as full build-out office opportunities. One leasing sheet lists typical floor plates around 4,000 square feet, while another brokerage description puts a typical floor closer to 4,500 rentable square feet. Ceiling heights are a major part of the appeal here, with materials referencing 12-foot unfinished ceilings, plus the kind of open proportions that creative, design, architecture, therapy, media, and founder-led firms usually prioritize. In practice, that means 37 Union Square West works best for tenants seeking a polished boutique headquarters, a private client-facing office, or a full-floor identity rather than a large institutional requirement.
Building Character And Physical Profile
What makes 37 Union Square West stand out is not sheer scale. It is the combination of Union Square exposure, operable windows, and a small-building atmosphere that is increasingly hard to find in Manhattan. The exterior reads like classic early-20th-century Union Square commercial stock: a low-rise masonry profile, punched windows, and a street presence that feels much more personal than a glass high-rise. Leasing materials also highlight two entrances, an attended lobby with extended hours seven days per week, on-site property management, signage potential, wheelchair accessibility, and immediate bus and subway access. That is a strong amenity package for a property of this size, especially because smaller buildings often fall short on lobby staffing or operational polish.
For tenants comparing multiple Union Square loft assets, this building’s advantage is straightforward: it delivers a boutique address with real institutional convenience. For buyers, the appeal is similar. Small-format Union Square assets can be difficult to replicate because the combination of park adjacency, flexible floor plates, operable windows, and recognizable branding frontage is limited.
Location And Transportation
The address sits directly across from Union Square Park and the Union Square Greenmarket, placing tenants in one of Manhattan’s most established live-work-play districts. Union Square also sits at the meeting point of neighborhoods including the Flatiron District, Greenwich Village, Chelsea, Gramercy, and the East Village, which is one reason the area continues to attract office users from creative, consumer, and professional-service sectors.
From a commuting standpoint, this is one of the strongest small-building locations in Manhattan. The 14th Street–Union Square station serves the 4, 5, 6, L, N, Q, R, and W trains, giving tenants direct access to the East Side, West Side, Midtown, Downtown, Brooklyn, and Queens connections through one major hub. That level of subway access is a serious advantage for employers recruiting from every borough and from regional rail connections reached through Midtown and Lower Manhattan.
Tenant Takeaway
The clearest reason to lease or buy at 37 Union Square West is fit. This is not a building for a tenant that needs massive floor plates, trophy branding, or a corporate campus environment. It is for users who want high ceilings, small efficient floors, excellent natural light, operable windows, and a front-row Union Square address that clients and staff immediately recognize. It is especially compelling for boutique headquarters, family offices, architecture and design firms, advisory practices, wellness operators, or any company that benefits from a more distinctive environment.
The one diligence point worth stressing is data consistency. Because public-facing records and brokerage materials do not perfectly align on the building’s total square footage, story count, and year built, tenants and buyers should confirm rentable area, loss factor, certificate of occupancy status, and floor-by-floor conditions during underwriting. Even with that caveat, 37 Union Square West remains a strong niche option: a small, highly visible Union Square building with the kind of park-facing placement and boutique office character that larger inventory simply cannot duplicate.