340 East 86th Street, Manhattan

    Winter heat calls inside, heavy street traffic and party noise outside.

    This is a 15-unit pre-war building on East 86th Street with commercial space on the ground floor. While code-violation tracking is currently unavailable, the complaint logs show two distinct pressures: winter heat calls indoors and heavy block-level noise outside. Three things to know:

    Heat and hot water drop consistently when the weather turns cold. 13 heat and hot water calls were reported here over the past two winters, spanning both individual apartments and building-wide outages. Calls cluster heavily between November and February, including back-to-back building-wide heat drops in December 2024 and January 2025.

    The surrounding three blocks run loud and congested. Within three blocks, neighbors logged 191 residential noise calls over the past year—mostly loud music and party complaints—alongside 190 illegal parking reports, dominated by blocked hydrants and double-parking along the commercial strip. Commercial noise and street-level activity spill directly over from the ground-floor storefronts.

    Quieter signals on this building and the blocks around it:

    340 East 86th Street is a 15-unit building in Manhattan, New York City (BBL 1015480035). This building is associated with Kantor, Mortimor. Brix tracks 0 open HPD violations for this property, along with inspection history, DOB filings, tenant complaints, and rent stabilization status.

    Built in 1910, this walk-up apartment building sits in Manhattan and is tracked by Brix using public NYC records from HPD, DOB, ACRIS, and 311.

    Tenants have filed 39 HPD complaints about this building over the last five years, most often about heat/hot water.

    The DOB has logged 1 permit filing on this building in the last 24 months.

    What tenants have called the city about here over the last five years:

    The most recent complaint on this building was filed February 2, 2026.

    The building last changed hands on September 14, 2016, according to recorded deeds.

    Brix score: 69/100. View the Building Report on Brix.

    See every NYC building owned by Kantor, Mortimor on the landlord portfolio page.

    Part of Upper East Side — see violations, complaints, and landlord activity across the whole neighborhood.

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    Apartments at 340 East 86th Street

    • Unit 17

      Unit 17 at 340 East 86th Street has no open violations (1 past violation).

    • Unit 4

      Unit 4 at 340 East 86th Street has no open violations (4 past violations).

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