Turn-of-the-century Park Avenue co-op with an intimate layout of just twenty-three apartments.
Constructed in 1908, 865 Park Avenue offers a private residential footprint on a prominent Upper East Side stretch. While the building's internal operations remain out of the municipal spotlight, some local friction and building-use reports surface in the files. Three things to know:
An unresolved report from June 22, 2026 alleges an illegal residential conversion inside the building. The complaint remains open on the municipal files after being logged in early summer. In a co-op of only twenty-three residences, unresolved building-use complaints are highly visible and often point to friction over a neighbor's unpermitted renovation work.
A cluster of food establishment and indoor air quality complaints within three blocks indicates nearby venting. Over the last year, neighbors logged 15 food establishment complaints and four indoor air quality reports in the immediate area. Restaurant exhaust can easily migrate into residential units via building risers or windows depending on wind patterns and building design.
Two recent transactions establish a solid baseline for the building's current share values. A residence closed for $2.3M in June 2026, following a $3.3M transfer in March of the same year. In an intimate association of this size, having two fresh sales within a few months of each other gives the board solid comparable data when reviewing new applicants.
Quieter signals on this building and the blocks around it:
865 Park Avenue is a 23-unit building in Manhattan, New York City (BBL 1014120001). This building is associated with Co-op Corporation. Brix tracks 0 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.
Built in 1908, this elevator apartment building sits in Manhattan and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.
The building last changed hands on June 15, 2026 for $2,300,000, according to recorded deeds.
Brix rating: Take a closer look (75/100). View the Building Report on Brix.
See every NYC building owned by Co-op Corporation on the landlord portfolio page.
Part of Upper East Side — see violations, complaints, and landlord activity across the whole neighborhood.
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