621 Crown St

Fire safety class C · HPD violation

Fire safetyApt D6 class C · HPD violation

Fire safety class B · closed · HPD violation

Fire safetyApt A7 class C · closed · HPD violation

Fire safety class C · closed · HPD violation

Structure and facade

Issues on record

What has happened here

Walls, floors and stairsApt D6 class A · HPD violation

Walls, floors and stairs class A · HPD violation

Walls, floors and stairs class B · HPD violation

Walls, floors and stairs class A · HPD violation

Walls, floors and stairs class B · HPD violation

Walls, floors and stairsApt C4 class B · closed · HPD violation

Show 8 more

Walls, floors and stairs class B · closed · HPD violation

Walls, floors and stairsApt B3 class B · closed · HPD violation

Walls, floors and stairsApt B3 class A · closed · HPD violation

Walls, floors and stairs class A · closed · HPD violation

Walls, floors and stairs class B · closed · HPD violation

Walls, floors and stairs class A · closed · HPD violation

2025 Feb

Walls, floors and stairs class A · closed · HPD violation

Construction class - 2 · DOB violation

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

Heat and hot water

Issues on record (2025) · 61 complaints, 2024–2026 · 28 in the past year

What has happened here

Heat or hot waterApt D2 complaint

Show 90 more

2025 Nov

2025 Nov

2025 Nov

Heat or hot waterApt B3 complaint

Heat or hot waterApt B10 complaint

Heat or hot waterApt D4 complaint

Heat or hot waterApt A11 complaint

Heat or hot waterApt A3 complaint

2025 May

2025 May

Heat or hot waterApt C9 class C · HPD violation

Heat or hot water class C · closed · HPD violation

2025 Feb

2024 Oct

2024 Apr

2024 Apr

2024 Apr

2024 Feb

2024 Feb

2024 Jan

2024 Jan

2023 Nov

Heat or hot waterApt 2B complaint

2023 Nov

2023 Nov

2023 Oct

Local Law 62/91 - Boilers never closed · DOB violation

1993 Aug

1991 Dec

Fuel storage permit, Fuel burning permit, Boiler permit

Heat source

Boiler burning No. 2 oil (Rockmills MP-80), registration current since May 2026

Clean Air Tracking System (boiler registrations), as of 2026-10-21 · See this building's boiler registrations on NYC Open Data →

Boiler inspection filings

Latest accepted inspection Jan 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-20 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Boiler work permits

Latest boiler work permit 1991

DOB Permit Issuance (BIS), as of 2026-10-20

What this counts

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

Heat and hot water complaints

29 heat or hot water complaints

Housing Maintenance Code Complaints and Problems, as of 2026-10-21 · See the complaints at HPD Online →

What this counts

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

Water and pipes

Issues on record · 2 complaints, 2026

What has happened here

PlumbingApt D2 complaint

Leaks class B · HPD violation

Leaks class B · HPD violation

LeaksApt B5 complaint

Leaks class C · closed · HPD violation

Leaks class C · closed · HPD violation

Show 2 more

PlumbingApt C12 class B · HPD violation

1991 Dec

Plumbing permit

Water service line

Non-Lead (field inspection)

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

Pests and cleanliness

Issues on record · 1 complaint, 2024

What has happened here

PestsApt D6 class C · HPD violation

PestsApt D6 class C · HPD violation

2025 Jul

Rubbish and cleanliness class B · closed · HPD violation

Mold class B · HPD violation

PestsApt C9 class C · HPD violation

Mold class A · closed · HPD violation

Show 7 more

PestsApt C9 class C · closed · HPD violation

Rubbish and cleanliness class B · HPD violation

Unsanitary conditions complaint

2024 Jul

PestsApt D10 class C · HPD violation

2024 Jul

PestsApt D10 class C · HPD violation

2024 Jul

Pests class C · HPD violation

Mold class B · HPD violation

Electrical

1 complaint, 2026

What has happened here

ElectricalApt B5 complaint

Flooding

No issues on record

FEMA flood zone

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

FEMA National Flood Hazard Layer, as of 2026-10-21

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

Energy

ENERGY STAR score 69 (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

HPD violations

71 open: 62 about building conditions — pests (12), walls, floors and stairs (12), fire safety (8), other conditions (6); 19 immediately hazardous (class C), 9 about paperwork or notices. Also 9 older records from 1999–2013 never closed. 25 further violations from 2025–2026 were closed. 411 violations on record in all, 1991–2026 — the 190 most recent are listed here

Fire safety class C

Fire safetyApt D6 class C

Walls, floors and stairsApt D6 class A