Building record from city data · MANHATTAN, NY

321 E 52 St

Printed 2026-10-20 from blueflo.tech/b/321-east-52-street-manhattan, where it is kept current. These are city records, not an inspection by Blueflo. Every item shows its source and the date it was last checked. Not a warranty. May not be used for tenant screening (terms of use).

built 1910 · 4 stories · 7 apartments · BIN 1039821 · BBL 1013450111

Checked in city records
Checked in city records: non-lead water line, boiler filing with no defects (Sep 2026), outside FEMA flood zones and stormwater maps
Source: DOB NOW: Safety Boiler, FEMA National Flood Hazard Layer, Lead Service Line Location Coordinates · as of 2026-01-30
Also on record
Clean in the records
Registered with the city

CFA MANAGEMENT INC, MERTZ PROPERTY LLC, MERTZ PROPERTIES, LLC

Checked in city records
Checked in city records: non-lead water line, boiler filing with no defects (Sep 2026), outside FEMA flood zones and stormwater maps
Source: DOB NOW: Safety Boiler, FEMA National Flood Hazard Layer, Lead Service Line Location Coordinates · as of 2026-01-30

Heat and hot water

Older records on file
What has happened here
2017 Sep
Heat or hot water class C · paperwork · HPD violation
1999 Sep
Heat or hot water class C · never closed · HPD violation
1998 Mar
Heat or hot water class C · paperwork · never closed · HPD violation
Heat source

Boiler burning No. 2 oil (Peerless, Jot-6 PEERLESS, JOT-6), registration expired since Nov 2013

Clean Air Tracking System (boiler registrations), as of 2026-10-19 · See this building's boiler registrations on NYC Open Data →
Boiler inspection filings

Latest accepted inspection Sep 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-17 · See the boiler filings at DOB →
What this counts

Accepted annual boiler inspection filings, any date

  • Boiler work permitsno recordNo boiler work permits on record
  • Heat and hot water complaintsfound0 heat or hot water complaints

Water and pipes

1 complaint, 2025
What has happened here
2025 Jun
Plumbing complaint
2008 Jun
Plumbing permit
1994 May
Plumbing permit
Water service line

Non-Lead (field inspection)

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

Fire and safety

Older records on file
What has happened here
2017 Sep
Fire safety class A · HPD violation

Structure and facade

Older records on file
What has happened here
2007 May
Alteration permit
1998 Mar
Structure and facade class C · never closed · HPD violation
1993 Aug
General construction permit
1990 Jun
General construction permit
  • Facade ratingnot requiredNot required: facade inspections apply only to buildings taller than 6 stories
  • Sidewalk shed and scaffoldingno recordNo sidewalk shed permits on record
  • Landmark statusno recordNot in a historic district on record

Flooding

No issues on record
FEMA flood zone

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

FEMA National Flood Hazard Layer, as of 2026-10-19
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

Rent and tenancy

On the state list
Rent stabilization

On the state's list of buildings with at least one rent-stabilized apartment (2024 registrations)

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

General condition and all records

HPD violations

2 open: 1 about building conditions — fire safety (1), 1 about paperwork or notices. Also 3 older records from 1998–1999 never closed. 1 further violation from 2023 was closed. 10 violations on record in all, 1998–2023 — the 6 most recent are listed here

2023 Nov
Other conditions class I · paperwork · closed
2017 Sep
Heat or hot water class C · paperwork
2017 Sep
Fire safety class A
1999 Sep
Heat or hot water class C · never closed
1998 Mar
Structure and facade class C · never closed
1998 Mar
Heat or hot water class C · paperwork · never closed
Housing Maintenance Code Violations, as of 2026-10-19 · Read these violations in full at HPD Online →
What this counts

Open HPD violations inspected in the last 10 years; class C = immediately hazardous. Paperwork = failure to file, notify or certify

Resident complaints to the city

1 plumbing

2025 Jun
Plumbing
Housing Maintenance Code Complaints and Problems, as of 2026-10-19 · 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

5 permits since 1990

2008 Jun
Plumbing permit, General construction permit
2007 May
Alteration permit
1994 May
Plumbing permit, General construction permit
and 2 more at the source
DOB NOW: Build – Approved Permits, as of 2026-10-17 · See every permit at DOB →
What this counts

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

Everything else on record
2023 Nov
Other conditions class I · paperwork · closed · HPD violation
  • DOB violationsfound0 open

Nothing on record

Gasno record
  • Gas pipingno recordNo open gas piping filing violations. Inspection results themselves are not published
Energyno record
  • Energynot requiredNot required: energy reporting applies to buildings over 25,000 sq ft
ElevatorsNot applicable
  • Elevatorsnot requiredNo elevators registered to this building

Sources

23 datasets

FEMA

NYC DCP

NYC DEP

NYC DEP / Mayor's Office

NYC DOB

NYC DOB / Mayor's Office

NYC HPD

NYC OTI

NYC Rent Guidelines Board / NYS HCR

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