Building health · MANHATTAN, NY

509 3 Ave

built 2021 · 35 stories · 229 apartments

Apartments named in these records

6 of this building’s 229 apartments are named in a city record. The rest have no record naming them, which is the usual case.

These are city records about an apartment, not about anyone who lives or lived there. They may not be used to screen a tenant.

Heat and hot water

3 complaints, 2025–2026 · 2 in the past year
Heat source

Boiler burning natural gas (Generac SG130), registration current since Nov 2025

Clean Air Tracking System (boiler registrations), as of 2026-10-16 · See this building's boiler registrations on NYC Open Data →
Boiler inspection filings

Latest accepted inspection Dec 2025, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-16 · See the boiler filings at DOB →
What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 2023 (5 on record)

DOB Permit Issuance (BIS), as of 2026-10-16
What this counts

DOB boiler permits (BIS and DOB NOW); a permit dates work, not the boiler's age

Heat and hot water complaints

2 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-17 · See the complaints at HPD Online →
What this counts

HPD complaints, heat season 2025–26 (Oct 1–May 31)

Water and pipes

2 complaints, 2025–2026 · 1 in the past year
Water service lineWhole tax lot

Non-Lead (excavation)

Lead Service Line Location Coordinates, as of 2026-01-30

Pests and cleanliness

1 complaint, 2026
What has happened here

Fire and safety

No issues on record

Structure and facade

5 resolved since 2026

Flooding

No issues on record
FEMA flood zone

Outside FEMA's 1% annual-chance flood zone: X

FEMA National Flood Hazard Layer, as of 2026-10-17
What this counts

Effective FIRM zones touching the building footprint

Stormwater flooding

Extreme storm, 2080 sea levels: Not in mapped flooding; Moderate storm, 2050 sea levels: Not in mapped flooding; Moderate storm, today's sea levels: Not in mapped flooding; Limited storm, today's sea levels: Not loaded (file format unreadable)

NYC Stormwater Flood Maps, as of 2024-07-03
What this counts

Mapped ponding touching the building footprint

BasementWhole tax lot

Below grade

PLUTO (tax lot data), as of 2026-08-24

Elevators

Older records on file
Elevators

4 active elevators; latest periodic inspection Aug 2025

DOB NOW Elevator Safety Compliance, as of 2026-10-16 · See this building's elevators on NYC Open Data →
What this counts

Active elevator devices registered to this building ID

Rent and tenancy

On the state list
Rent stabilizationWhole tax lot

On the state's list of buildings with at least one rent-stabilized apartment (2024 registrations); listed for this tax lot (1 addresses), not under this building's address. Listed under the 421-a tax program, so stabilization can end when the exemption does

Rent Stabilized Building Lists (2024 HCR registrations), as of 2025-11-30
What this counts

The list doesn't say which apartments are stabilized, and being listed isn't proof of current status. For a specific apartment, request its rent history from HCR

Energy

Energy

ENERGY STAR score 100 (2024 report)

Energy and Water Data Disclosure (Local Law 84), as of 2025-11-25
What this counts

Letter grades are issued by the city under Local Law 33 and posted near the building entrance; Blueflo shows the reported score only

General condition and all records

DOB violations

1 open: 1 about filings or paperwork

DOB Violations, as of 2026-10-17 · Read these violations in full at DOB →
What this counts

Open DOB, ECB and DOB NOW Safety violations, any date, one per violation. ECB class 1 = hazardous, class 2 = major

Resident complaints to the city

3 heat or hot water, 1 leaks, 1 mold, 1 paint or plaster, 1 plumbing

Housing Maintenance Code Complaints and Problems, as of 2026-10-17 · See the complaints at HPD Online →
What this counts

HPD complaints received in the last 2 years; the list below is every complaint on record for the last three years

Permit history

79 permits since 1990

DOB NOW: Build – Approved Permits, as of 2026-10-16 · See every permit at DOB →
What this counts

DOB permits issued (DOB NOW and legacy BIS), one per job and work type; excludes sheds

  • HPD violationsfound0 open. 6 further violations from 2026 were closed

Nothing on record

Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published

Sources

23 datasets

Each date is when we last checked that dataset, not when the record itself was created.

Every row shows the record it came from and the date it was last checked.
These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked.
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Not an inspection and not a warranty. May not be used for tenant screening — terms of use · privacy.