638 Warren St — building record — Blueflo

Building record from city data · BROOKLYN, NY

Printed 2026-10-21 from blueflo.tech/b/638-warren-street-brooklyn, 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 1920 · 4 stories · 8 apartments · BIN 3018797 · BBL 3009370011

Worth knowing

City records list the water service line as lead

Source: Lead Service Line Location Coordinates · as of 2026-01-30

Worth knowing

City records list the water service line as lead
1 open immediately hazardous (class C) HPD violation about leaks
1 hazardous (class 1) building code violation from 2020 is still open
6 open HPD violations about building conditions

Clean in the records

Boiler inspection filed Apr 2026 with no defects reported
Outside FEMA's 1% annual-chance flood zone; no mapped stormwater flooding
No heat or hot water complaints filed last winter

Registered with the city

638 WARREN STREET HDFC

Worth knowing

City records list the water service line as lead

Source: Lead Service Line Location Coordinates · as of 2026-01-30

Apartments named in these records

Apt 1R 6 Apt 2R 13

2 of this building’s 8 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.

Water and pipes

Issues on record

What has happened here

Plumbing permit

LeaksApt 1R class C · HPD violation

Plumbing permit

Water service line

Lead (records)

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

Heat and hot water

Issues on record, most recently 2023

What has happened here

BE-EXT-LP Boiler DOB violation

Low Pressure Boiler DOB violation

Low Pressure Boiler DOB violation

Low Pressure Boiler DOB violation

Low Pressure Boiler DOB violation

Heat or hot water class C · paperwork · never closed · HPD violation

Show 9 more

Low Pressure Boiler never closed · DOB violation

Low Pressure Boiler never closed · DOB violation

Low Pressure Boiler never closed · DOB violation

Low Pressure Boiler never closed · DOB violation

Low Pressure Boiler never closed · DOB violation

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

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

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

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

Boiler inspection filings

Latest accepted inspection Apr 2026, defects reported: no

DOB NOW: Safety Boiler, as of 2026-10-19 · See the boiler filings at DOB →

What this counts

Accepted annual boiler inspection filings, any date

Heat sourceno recordNo boiler registration or district steam on record
Boiler work permitsno recordNo boiler work permits on record
Heat and hot water complaintsfound0 heat or hot water complaints

Pests and cleanliness

2 resolved since 2024

What has happened here

Pests class A · paperwork · closed · HPD violation

Pests class A · paperwork · closed · HPD violation

Fire and safety

Older records on file

What has happened here

Fire safetyApt 1R class B · HPD violation

Lead-based paintApt 2R class C · never closed · HPD violation

Lead-based paintApt 2R class C · never closed · HPD violation

Lead-based paintApt 2R class C · never closed · HPD violation

Lead-based paintApt 2R class C · never closed · HPD violation

Lead-based paintApt 2R class C · never closed · HPD violation

Show 2 more

Lead-based paintApt 2R class C · never closed · HPD violation

Lead-based paintApt 2R class C · never closed · HPD violation

Electrical

Older records on file

What has happened here

ElectricalApt 2R class B · never closed · HPD violation

Structure and facade

Older records on file

What has happened here

General construction permit

General construction permit

Construction class - 1 · DOB violation

Walls, floors and stairsApt 1R class B · HPD violation

Walls, floors and stairsApt 1R class B · HPD violation

General construction permit

Show 7 more

Construction class - 3 · never closed · DOB violation

Walls, floors and stairs class A · never closed · HPD violation

Walls, floors and stairs class A · paperwork · never closed · HPD violation

Walls, floors and stairs class A · never closed · HPD violation

Walls, floors and stairsApt 2R class B · never closed · HPD violation

Walls, floors and stairsApt 2R class B · never closed · HPD violation

Walls, floors and stairsApt 2R class B · never closed · HPD 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

Flooding

No issues on record

FEMA flood zone

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

FEMA National Flood Hazard Layer, as of 2026-10-20

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

General condition and all records

HPD violations

6 open: 6 about building conditions — smoke or CO detectors (2), walls, floors and stairs (2), fire safety (1), leaks (1); 1 immediately hazardous (class C). Also 123 older records from 1988–2016 never closed. 2 further violations from 2024–2025 were closed. 141 violations on record in all, 1988–2025 — the 131 most recent are listed here

Pests class A · paperwork · closed

Pests class A · paperwork · closed

Fire safetyApt 1R class B

Smoke or CO detectorsApt 1R class B

Smoke or CO detectorsApt 1R class B

Walls, floors and stairsApt 1R class B

Walls, floors and stairsApt 1R class B

LeaksApt 1R class C

Show 19 more

Walls, floors and stairs class A · never closed

Walls, floors and stairs class A · paperwork · never closed

Heat or hot water class C · paperwork · never closed

Smoke or CO detectors class A · never closed

Smoke or CO detectors class A · never closed

Walls, floors and stairs class A · never closed

Lead-based paintApt 2R class C · never closed

Lead-based paintApt 2R class C · never closed

Lead-based paintApt 2R class C · never closed

Lead-based paintApt 2R class C · never closed

Lead-based paintApt 2R class C · never closed

Lead-based paintApt 2R class C · never closed

Lead-based paintApt 2R class C · never closed

Walls, floors and stairsApt 2R class B · never closed

Smoke or CO detectorsApt 2R class B · never closed

Smoke or CO detectorsApt 2R class B · never closed

ElectricalApt 2R class B · never closed

Walls, floors and stairsApt 2R class B · never closed

Walls, floors and stairsApt 2R class B · never closed

and 102 more at the source

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

DOB violations

16 open: 5 about building conditions, 5 about filings or paperwork, 6 older than 10 years

BE-EXT-LP Boiler

Low Pressure Boiler

Low Pressure Boiler

Low Pressure Boiler

Low Pressure Boiler

Construction class - 1

Construction class - 3 · never closed

Low Pressure Boiler never closed

Show 8 more

Low Pressure Boiler never closed

Low Pressure Boiler never closed

Low Pressure Boiler never closed

Low Pressure Boiler never closed

Local Law 62/91 - Boilers never closed

Local Law 62/91 - Boilers never closed

Local Law 62/91 - Boilers never closed

Local Law 62/91 - Boilers never closed

DOB Violations, as of 2026-10-19 · 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

Permit history

5 permits since 1990

Plumbing permit

General construction permit

General construction permit

Plumbing permit, General construction permit

and 1 more at the source

DOB NOW: Build – Approved Permits, as of 2026-10-19 · 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

Smoke or CO detectorsApt 1R class B · HPD violation

Smoke or CO detectorsApt 1R class B · HPD violation

Smoke or CO detectors class A · never closed · HPD violation

Smoke or CO detectors class A · never closed · HPD violation

Smoke or CO detectorsApt 2R class B · never closed · HPD violation

Smoke or CO detectorsApt 2R class B · never closed · HPD violation

Resident complaints to the cityfoundno complaints

Nothing on record

Rent and tenancyNot on the state list

Rent stabilizationno recordNot on the state's 2024 list. Owners who register late or not at all are missing, so ask HCR about a specific apartment

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

FEMA National Flood Hazard Layer2026-10-20
OpenFEMA NFIP Redacted Claims (v3)2026-09-09

NYC DCP

NYC GeoSearch (address directory)2026-10-20
PLUTO (tax lot data)2026-08-24

NYC DEP

Clean Air Tracking System (boiler registrations)2026-10-20
Lead Service Line Location Coordinates2026-01-30

NYC DEP / Mayor's Office

NYC Stormwater Flood Maps2024-07-03

NYC DOB

DOB NOW Elevator Safety Compliance2026-10-19
DOB NOW: Build – Approved Permits2026-10-19
DOB NOW: Safety Boiler2026-10-19
DOB NOW: Safety – Facades Compliance Filings2026-10-19
DOB Permit Issuance (BIS)2026-10-19
DOB Safety Violations2026-10-19
DOB Violations2026-10-19

NYC DOB / Mayor's Office

Energy and Water Data Disclosure (Local Law 84)2025-11-25

NYC HPD

Buildings Subject to HPD Jurisdiction2026-08-12
Housing Maintenance Code Complaints and Problems2026-10-20
Housing Maintenance Code Violations2026-10-19
Multiple Dwelling Registrations2026-08-12
Registration Contacts2026-08-12

NYC OTI

AddressPoint2026-07-07
Building Footprints2026-10-19

NYC Rent Guidelines Board / NYS HCR

Rent Stabilized Building Lists (2024 HCR registrations)2025-11-30

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