Brooklyn · Block 802 · Lot 11 · 11220

712 51 Street

4 floors · 5 apartments · 6,718 sq ft · built 1920 · class K4 · owner of record: Huang, Qikang

3open violations
$34,275ECB/OATH penalties owed
1HPD class C (immediately hazardous)
Overdueto Annual property registration

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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 67 days
Keep the report on file (not filed with DOB)
Bedbug annual filing Applies
Local Law 69 · December 1 to 31 each year
What this is

Owners of multiple dwellings file their bedbug infestation history for the prior year with HPD and post or distribute it to tenants. Agency page

Dec 31, 2026
in 67 days
Annual
Annual notice: window guards and lead paint Applies
HPD / Health Code · January 1 to 16 each year
What this is

Deliver the annual notice to every unit asking whether a child lives there (window guards for children 10 and under; lead paint for children under 6 in pre-1960 buildings), then follow up on units that don't return it by mid-February. Agency page

Jan 16, 2027
in 83 days
Annual
Annual property registration Applies
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

OverdueNo current registration found
Gas piping inspection (2029 cycle) Likely applies
Local Law 152 · During 2029
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 7 is on the 2029 cycle; certification is filed with DOB after the inspection. Buildings with no gas piping file a certification instead. Agency page

Dec 31, 2029
in 1163 days
Next cycle year 2029
Annual boiler inspection (5 boilers) Applies
Boiler inspection · By December 31 each year
What this is

Boilers are inspected each calendar year and the report is filed in DOB NOW: Safety within 14 days of the inspection (low-pressure boilers in residential buildings of 5 or fewer families are exempt). Latest report on record: 2026-06-15 (Accepted). Agency page

On file2026 reports accepted

Open violations

ECB / OATH (11) · $34,275 owed
IssuedViolationHearingBalance
Dec 20, 2021Construction CLASS - 1
UNLAWFULLY CONTINUED WORK WHILE ON NOTICE OF A STOP WORK ORDER.I OBSERVED 2 WORKERS WORKING AT EXP1 ON THE GROUND FLOOR.1 WORKER WAS WORKINGAROUND HIGH VOLTAGE POWERLINES THAT FEED ELECTRICAL POWER TO THE BUILD
#35632745H
May 4, 2022
IN VIOLATION
$5,000
Oct 15, 2021Construction CLASS - 1
UNLAWFULLY CONTINUED WORK WHILE ON NOTICE OF A STOP WORK ORDER.AT THE TIME OF INSPECTION ON ALT1 SITE,WITH TWO WORKERS OIN SITE,I OBSERVED WORKER INSTALLING TILE,FLOORING AT FIRST FLOOR.UPON REVIEW IN BIS,I OBS
#35590012H
Oct 3, 2022
IN VIOLATION
$5,000
Jul 30, 2021Construction CLASS - 1
SEC. 3301.2 FAILURE TO MAINTAIN STAIRS-INFILLS. NOTE: AT TIME OF MY INSPECTION OF A 4 STY BLDG TOPPED OFF AT ROOF CONSTRUCTION WORK IN PROGRESS. I OBSERVED THAT THERE WERE NO INFILLS ON THE METAL(BAR)OF THREADS
#35575424Z
Dec 8, 2021
IN VIOLATION
$625
Nov 9, 2020Construction CLASS - 1
WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS &/OR AMENDMENTS.NOTED:AT TIME OF MY INSPECTION OF AN ALTERATION TYPE-1,4 STORY BLDGCONSTRUCTION IN PROGRESS,I OBSERVED UPON ENTRY TO THE CELLAR THE MASON
#35540075J
Sep 17, 2021
IN VIOLATION
$2,500
Aug 19, 2020Unknown CLASS - 2
AT TIME OF INSPECTION,OBSERVED ONGOING CONSTRUCTION ACTIVITIES CONTRARY TO MAYORS EMERGENCY EXECUTIVE ORDER 120 & SUBSEQUENT ORDERS INCORPORATING REQUIREMENTS OF GOVERNORS EXECUTIVE ORDER 202.34 & SUBSEQUENT OR
#35503214H
Mar 1, 2021
IN VIOLATION
$5,000
Aug 19, 2020Site Safety CLASS - 1
DESIGN DRAWINGS. AT TIME OF INSPECTION OBSERVED 1)FLOOR JOISTS HAD BEEN REMOVED & PARTIALLY SUPPORTED BY 2X4'S 2)RAMP HAD BEEN INSTALLED W/PLYWOOD FROM EXTERIOR TO CELLAR LEVEL 3)DOOR TO CELLAR HAD BEEN REMOVED
#35503218P
Mar 1, 2021
IN VIOLATION
$2,500
Aug 19, 2020Construction CLASS - 1
GUARDRAILS. AT TIME OF INSPECTION OBSERVED GUARDRAILS AT EXP#3 AT 1ST & 2ND FL THAT WERE NOT SECURED TO FLOOR & WOULD NOT W/STAND 200 POUNDS OF PRESSURE. GUARDRAILS WERE CONSTRUCTED AS A BARRIER & NOT PER CODE
#35503219R
Mar 1, 2021
IN VIOLATION
$5,000
Aug 19, 2020Site Safety CLASS - 1
DOCUMENT REQUIRED TO BE ON SITE PER CHAPTER 33. AT TIME OF INSPECTION I REQUESTED THE FOLLOWING DOCUMENTS 1)DRAWINGS SHOWING NEW FOOTINGS FOR EXTENSION-NONE WERE PROVIDED & NOT INCLUDED IN THE SET OF DRAWING ON
#35503216L
Mar 1, 2021
IN VIOLATION
$1,250
Aug 19, 2020Construction CLASS - 1
WORK DOES NOT CONFORM TO APPROVED PLANS &/OR APPROVED AMENDMENTS. AT TIME OF INSPECTION,I OBSERVED EXCAVATION MORE THAN 5-0 FEET DEEP. THEM HAD REMOVED REAR WALL FOR NEW EXTENSION. I OBSERVED A CRACK AT EXP#2 @
#35503220Y
Mar 1, 2021
IN VIOLATION
$2,500
Jul 24, 2020Construction CLASS - 1
FAILURE TO MAINTAIN ADEQUATE HOUSEKEEPING. AT TIME OF MY INSPECTION OFA 2 STY BLDG PROPOSED 4 STY CLOSED JOBSITE. I NOTICED CONSTRUCTION DEBRIS ON STREET NEXT TO CONSTRUCTION CONTAINER & UNDER SIDEWALK SHED.
#35500385Z
Feb 19, 2021
IN VIOLATION
$2,500
Jul 24, 2020Construction CLASS - 2
PEDESTRIAN PROTECTION DOES NOT MEET CODE. AT TIME OF MY INSPECTION OF A 2 STY BLDG PROPOSED 4 STY CLOSED JOBSITE. I NOTICED A SIDEWALK SHED THAT DOESN'T MEET CODE. 1)SWS IS LESS THEN 18'INCHES FROM STREET CURB.
#35500386K
Feb 19, 2021
IN VIOLATION
$2,400
DOB (1)
IssuedViolationStatus
Nov 14, 2025LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION
#08554
DOB VIOLATION - ACTIVE
DOB NOW Safety (1)
IssuedViolationStatus
Nov 14, 2025Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION
Active
HPD (1) · C 1 · B 0 · A 0
IssuedClassViolationCorrect by
Jun 6, 2007CSECTION 27-2005 ADMIN. CODE: REMOVE THE ILLEGAL FASTENING DOUBLE CYLINDER LOCK KEY OPERATED INSTALLED ENTRANCE DOOR TO BUILDINGJun 22, 2007

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 25, 2026, 2:39 PM ET. BBL 3008020011.

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