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305 East 91st Street

Manhattan · Upper East Side-Yorkville, NY 10128

305 East 91st Street is a 16-apartment building in Upper East Side-Yorkville, built in 1920, managed by Quantum Property Management. The City has 3 open housing-code violations on file for it, about 0.19 per apartment, roughly three times the neighborhood norm for a building this size (HPD, as of 5 October 2026). No tenant has reviewed it here yet. Everything above comes from the City's own records.

Managed by Quantum Property Management

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Units
16
Year built
1920
Borough
Manhattan

This building’s record with the City

Complaints tenants filed with 311, and repairs a City inspector has asked for. Most repairs are routine maintenance. Both describe the building rather than the people in it, and often predate the current management.

4.4/5Better than most nearbyScored from the records below against every building we cover. It is not a tenant rating. Nobody who lived here said this.

0tenant complaints

Filed with 311 in the past year

3open repairs

Outstanding with HPD · about 0.2 per apartment

Immediately hazardous
0
Hazardous
0
Non-hazardous
3

What the open repairs are about

  • Smoke and CO alarms2
  • Stairs, floors and ceilings1

Source: NYC 311 and Housing Preservation & Development. Look this building up · updated Oct 2026

The company that manages it, elsewhere

Quantum Property Management manages 6 other buildings we cover, holding 97 apartments.

open violations
37open violations
immediately hazardous
8immediately hazardous
311 complaints
4311 complaints

in the past year

per apartment
0.4per apartment

The company’s record across its other buildings, not this building’s. A company can run one well and another badly, and these figures often predate the current management. (HPD and 311, as of 5 October 2026.)

What tenants say

Nobody has written about 305 East 91st Street yet.

Does the heat hold in January? How long does the super take? Does management answer the phone, and were you charged what you expected? No public record answers any of that. Only someone who lived here can.

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Also on East 91st Street

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Also managed by Quantum Property Management

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