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19 East 73rd Street

Manhattan · Upper East Side-Carnegie Hill, NY 10021

19 East 73rd Street is a 5-apartment building in Upper East Side-Carnegie Hill, built in 1871, managed by Cornerstone MGMT Systems INC. The City has 3 open housing-code violations on file for it, about 0.60 per apartment, in a neighborhood where most buildings have none on record (HPD, as of 5 October 2026). No tenant has reviewed it here yet. Everything above comes from the City's own records.

Managed by Cornerstone MGMT Systems INC

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Units
5
Year built
1871
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.

3.1/5About average for the areaScored 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 0.6 per apartment

Immediately hazardous
0
Hazardous
2
Non-hazardous
1

What the open repairs are about

  • Stairs, floors and ceilings1
  • Smoke and CO alarms1
  • Heat or hot water1

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

The company that manages it, elsewhere

Cornerstone MGMT Systems INC manages 97 other buildings we cover, holding 1,214 apartments.

open violations
224open violations
immediately hazardous
57immediately hazardous
311 complaints
40311 complaints

in the past year

per apartment
0.2per 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 19 East 73rd 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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