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Brooklyn · Block 4962 · Lot 42 · 11203

4521 Avenue D

2 floors · 1 apartments · 3,600 sq ft · built 1933 · class S1 · owner of record: Choi, Bong Nam

33open violations
$0ECB/OATH penalties owed
0HPD class C (immediately hazardous)
431dto Gas piping inspection (2027 cycle)

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New violations the morning after they're issued, plus deadline reminders. Free for one building.

Compliance deadlines

RequirementDueStatus
Annual parapet observation Check
Local Law 126 · By December 31 each year
What this is

If the building has a parapet facing a street, sidewalk or other public way, a competent person (such as a mason, engineer or architect) must observe it every year and the owner keeps the report for DOB on request. Detached one- and two-family homes are exempt. Agency page

Dec 31, 2026
in 66 days		Keep the report on file (not filed with DOB)
Annual property registration Check
HPD registration · September 1 each year
What this is

Residential buildings with three or more units, and one- and two-family homes the owner doesn't occupy, register with HPD every year ($13 fee). An unregistered building can't start a nonpayment case in Housing Court and faces civil penalties. Agency page

Sep 1, 2027
in 310 days		Required only if the owner doesn't live there
Gas piping inspection (2027 cycle) Likely applies
Local Law 152 · During 2027
What this is

Buildings with gas piping (except one- and two-family homes) need a periodic gas piping inspection by a licensed master plumber every four years. Community district 17 is on the 2027 cycle; certification is filed with DOB after the inspection. Buildings with no gas piping file a certification instead. Agency page

Dec 31, 2027
in 431 days		Next cycle year 2027

Open violations

ECB / OATH (1)
IssuedViolationHearingBalance
Sep 19, 2006Boilers Hazardous
50A/B/C/E/38/48B/50D.FULTON N.B.50A-EXPOSED WOOD IN CEILING ABOVE BOILER.50B-NO MANUAL RESET BUTTON FOR LOW WATER CUT-OFF CONTROL.50C-PROTECTIVE RODS FOR WATER LEVEL GLASS ARE MISSING.
#32051274X		Nov 6, 2006
IN VIOLATION		$0
DOB (16)
IssuedViolationStatus
Nov 14, 2025LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION
#12466		DOB VIOLATION - ACTIVE
Sep 23, 2024LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2023 EXTERNAL LOW PRESSURE INSPECTION
#11349		DOB VIOLATION - ACTIVE
Jun 30, 2023LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION
#12789		DOB VIOLATION - ACTIVE
Jun 30, 2023LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTION
#33165		DOB VIOLATION - ACTIVE
Jun 20, 2023HIGH PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL HGH PRESSURE INSPECTION
#03588		DOB VIOLATION - ACTIVE
Jun 20, 2023HIGH PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL HGH PRESSURE INSPECTION
#00354		DOB VIOLATION - ACTIVE
Jun 20, 2023HIGH PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2018 INTERNAL HGH PRESSURE INSPECTION
#01564		DOB VIOLATION - ACTIVE
Jun 20, 2023HIGH PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2019 INTERNAL HGH PRESSURE INSPECTION
#04782		DOB VIOLATION - ACTIVE
Jun 20, 2023LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION
#12262		DOB VIOLATION - ACTIVE
Jun 20, 2023LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION
#33666		DOB VIOLATION - ACTIVE
Apr 25, 2023LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTION
#10516		DOB VIOLATION - ACTIVE
Mar 16, 2020HIGH PRESSURE BOILER
VIOLATION ISSUED - FAILURE TO FILE 2017 INTERNAL HIGH PRESSURE BOILER INSPECTION
#00539		DOB VIOLATION - ACTIVE
Mar 16, 2020HIGH PRESSURE BOILER
VIOLATION ISSUED - FAILURE TO FILE 2017 EXTERNAL HIGH PRESSURE BOILER INSPECTION
#00510		DOB VIOLATION - ACTIVE
Jan 17, 2020LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT
#01119		DOB VIOLATION - ACTIVE
Jun 22, 2018HIGH PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE 2016 ANNUAL HIGH PRESSURE BOILER INSPECTION
#00151		DOB VIOLATION - ACTIVE
Jun 23, 2017HIGH PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE 2015 ANNUAL HIGH PRESSURE BOILER INSPECTION
#00183		DOB VIOLATION - ACTIVE
DOB NOW Safety (16)
IssuedViolationStatus
Nov 14, 2025Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION		Active
Sep 23, 2024Boiler LBLVIO
Violation Issued-Failure To File 2023 External Low Pressure Inspection Report		Active
Jun 30, 2023Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTION		Active
Jun 30, 2023Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION		Active
Jun 20, 2023Boiler HBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2019 INTERNAL HGH PRESSURE INSPECTION		Active
Jun 20, 2023Boiler HBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2018 INTERNAL HGH PRESSURE INSPECTION		Active
Jun 20, 2023Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION		Active
Jun 20, 2023Boiler HBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL HGH PRESSURE INSPECTION		Active
Jun 20, 2023Boiler HBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL HGH PRESSURE INSPECTION		Active
Jun 20, 2023Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION		Active
Apr 25, 2023Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2022 INSPECTION REPORT		Active
Mar 16, 2020Boiler HBLVIO
VIOLATION ISSUED - FAILURE TO FILE 2017 EXTERNAL HIGH PRESSURE BOILER INSPECTION		Active
Mar 16, 2020Boiler HBLVIO
VIOLATION ISSUED - FAILURE TO FILE 2017 INTERNAL HIGH PRESSURE BOILER INSPECTION		Active
Jan 17, 2020Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT		Active
Jun 22, 2018Boiler HBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE 2016 ANNUAL HIGH PRESSURE BOILER INSPECTION		Active
Jun 23, 2017Boiler HBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE 2015 ANNUAL HIGH PRESSURE BOILER INSPECTION		Active
HPD (0)

None open.

Check the agency records

Always confirm on the city's own systems before acting: DOB BIS property profile · DOB NOW · HPD Online · Pay ECB/OATH penalties (CityPay)

City records as of Oct 26, 2026, 1:52 PM ET. BBL 3049620042.

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