610 St Nicholas Avenue, Manhattan

Fifty open violations and 32 Class C hazards put this address squarely on the active maintenance radar.

A 20-unit Harlem walk-up carrying 50 open code violations is a clear operational flag, especially with 32 classified as Class C (immediately hazardous). The open file shows deferred maintenance across individual units, repeat winter heating drops, and air quality issues stemming from surrounding commercial spaces. Three things to know:

Heat and hot water shortages recur consistently throughout the winter months. Code filings detail 176 heat and hot water complaints over the past three years. The repeated winter calls point toward central boiler instability rather than individual radiator valve issues.

Surrounding commercial spaces and shared shafts generate recurring air quality calls. City logs show 8 indoor air quality calls and 7 food establishment complaint filings within three blocks over the last 12 months. Fume, odor, and exhaust bleed can migrate through shared risers or open shafts into upper apartments.

Inspections reveal deferred maintenance and uncorrected mold inside individual apartments. Violations from June 2026 document open mold conditions, plaster decay, leaking faucets, and broken flooring in individual apartments. The concentration highlights internal repair backlogs that linger until inspectors document them.

Quieter signals on this building and the blocks around it:

• 11 unsanitary condition reports filed at the building, including rat and mouse calls.
• 6 door and window complaints on file, with open issues on building entrance doors.
• 248 illegal parking calls within three blocks over 12 months, mostly sign violations and blocked hydrants.

610 St Nicholas Avenue is a 20-unit building in Manhattan, New York City (BBL 1020480044). This building is associated with Icer Of Hamilton Heights LLC. Brix tracks 49 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 575 HPD complaints about this building over the last five years, most often about heat/hot water.

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

• Heat/hot Water: 512 complaints
• Plumbing: 22 complaints
• Unsanitary Condition: 17 complaints
• Door/window: 12 complaints

The most recent complaint on this building was filed July 8, 2026.

Conditions cited on open violations at this address:

• § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT SOUTH AND WEST WALLS IN THE 1st ROOM FROM EAST LOCATED AT A
• § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 4th ROOM FROM EAST LOCATED AT APT 2A, 2nd ST
• § 27-2005 HMC: REFIT CLOSET DOOR IN THE FOYER LOCATED AT APT 2A, 2nd STORY, 2nd APARTMENT FROM SOUTH AT WEST
• § 27-2026 ADM CODE REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS AT SINK IN THE KITCHEN LOCATED AT APT 2A, 2nd STORY, 2nd APARTMENT FROM SOUTH AT WEST

The building last changed hands on May 21, 2021, according to recorded deeds.

Brix score: 2/100. View the Building Report on Brix.

See every NYC building owned by Icer Of Hamilton Heights LLC on the landlord portfolio page.