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525 West End Avenue

Manhattan · Upper West Side (Central), NY 10024

525 West End Avenue is a 128-apartment building in Upper West Side (Central), built in 1913, managed by Siren Management CORP. The City has 1 open housing-code violation on file for it, about 0.01 per apartment, well below the neighborhood norm for a building this size (HPD, as of 5 October 2026). Tenants filed 10 complaints with 311 in the past year, which the City closed in a median of 45 days (311, as of 5 October 2026). No tenant has reviewed it here yet. Everything above comes from the City's own records.

Managed by Siren Management CORP

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Units
128
Year built
1913
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.

4.5/5Little on recordScored from the records below against every building we cover. It is not a tenant rating. Nobody who lived here said this.

Complaints are down from 30 to 10 year on year.

1 repair has been cleared since our last check.

10tenant complaints

Filed with 311 in the past year · 30 the year before

Typically closed in 45 days · neighborhood median is 4

1open repair

Outstanding with HPD

Immediately hazardous
0
Hazardous
1
Non-hazardous
0

What the open repairs are about

  • Leaks, damp or mould1

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

The company that manages it, elsewhere

Siren Management CORP manages 26 other buildings we cover, holding 818 apartments.

open violations
383open violations
immediately hazardous
40immediately hazardous
311 complaints
19311 complaints

in the past year

per apartment
0.5per 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 525 West End Avenue 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 West End Avenue

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