309 5th Avenue
Manhattan · Midtown South-Flatiron-Union Square, NY 10016
309 5th Avenue is a 165-apartment building in Midtown South-Flatiron-Union Square, built in 2008, managed by Grep Atlantic LLC. The City has no open housing-code violations on file for it (HPD, as of 5 October 2026). Tenants filed 2 complaints with 311 in the past year, which the City closed in a median of 0 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 Grep Atlantic LLC
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- Units
- 165
- Year built
- 2008
- Neighborhood
- Midtown South-Flatiron-Union Square
- 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.
Problems here get fixed quickly, a median of under a day from complaint to close, faster than the 4-day neighborhood median.
2tenant complaints
Filed with 311 in the past year
0open repairs
Outstanding with HPD
Source: NYC 311 and Housing Preservation & Development. Look this building up · updated Oct 2026
The company that manages it, elsewhere
Grep Atlantic LLC manages 3 other buildings we cover, holding 1,306 apartments.
- open violations
- 105open violations
- immediately hazardous
- 13immediately hazardous
- 311 complaints
- 2311 complaints
- per apartment
- 0.1per apartment
in the past year
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 28 September 2026.)
What tenants say
Nobody has written about 309 5th 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.
Be the first to reviewAbout a minute, no account, stays anonymous.