Brooklyn · Block 3165 · Lot 32 · 11237

186 Knickerbocker Avenue

3 floors · 4 apartments · 4,125 sq ft · built 1931 · class S4 · owner of record: Quan Yuan Property Corp.

48open violations
$0ECB/OATH penalties owed
11HPD 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 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

OverdueRegistration expired 2024-09-30
Gas piping inspection (2026 cycle) Likely applies
Local Law 152 · During 2026
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 4 is on the 2026 cycle; certification is filed with DOB after the inspection. Buildings with no gas piping file a certification instead. Agency page

Dec 31, 2026
in 69 days
Due this year
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 69 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 69 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 85 days
Annual

Open violations

ECB / OATH (0)

None open.

DOB (1)
IssuedViolationStatus
Aug 16, 1993LOCAL LAW 62/91 - BOILERS

#29423
DOB VIOLATION - ACTIVE
DOB NOW Safety (1)
IssuedViolationStatus
Oct 31, 2025Gas Piping - LL152 FTF-PL-PER
Cycle 1, Sub-cycle C (premises is in Community District 4)
Active
HPD (46) · C 11 · B 19 · A 14
IssuedClassViolationCorrect by
Nov 29, 2024I§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISES FOR NONPAYMENT OF RENT UNTIL A VALID R—
Nov 20, 2025I§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISES FOR NONPAYMENT OF RENT UNTIL A VALID R—
Oct 19, 2026B§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD GARBAGE AT PUBLIC HALL, 1st STORYNov 23, 2026
May 5, 2026A(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.Aug 8, 2026
Apr 22, 2026C§ 27-2044, 2041.1 HMC: §238 MDL and 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING THE DOORS THAT IS MISSING OR DEFECTIVE LATCH SET AT DOOR TO BUILDING ENTRANCE AT NORTH (BUILDING FRONT) , 1st STORYMay 6, 2026
Apr 22, 2026A§27-2045(B)(5) HMC, § 12-06, 12-10 RCNY POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY COMMISSIONER, IN A COMMON AREA OF A CLASS A MULTIPLE DWELLING NEAR INSPECTION CERTIFICATE OR PROVIDE NOTICE TO TENANTS IN PRIVATE DWELLINGS MISSINGJul 26, 2026
Apr 22, 2026C§ 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM MISSING AT PUBLIC HALL, 1st STORYApr 28, 2026
Apr 22, 2026A§ 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES THAT SHOULD BE FOLLOWED WHEN A GAS LEAK IS SUSPECTED AT PUBLIC HALLJul 26, 2026
Apr 22, 2026C§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE WOOD SADDLE AT DOOR TO BUILDING ENTRANCE AT NORTH (BUILDING FRONT) , 1st STORYApr 28, 2026
Apr 22, 2026C§ 27-2005 ADM CODE REPLACE WITH NEW THE MISSING MORTISE LOCK AT DOOR TO BUILDING ENTRANCE AT NORTH (BUILDING FRONT) , 1st STORYApr 28, 2026
Nov 5, 2025A§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE AT PUBLIC HALL, 1st STORYFeb 8, 2026
Jun 10, 2025A(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.Sep 13, 2025
Oct 12, 2023B§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE AT BUILDING FRONTNov 16, 2023
Oct 12, 2023C§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LOCKING ASSEMBLY AT BUILDING ENTRANCE DOOR AT PUBLIC HALL, 1st STORYOct 18, 2023
Sep 25, 2023B§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE BUILDING FRONT AT COMPACTOR CLOSET, 1st STORYOct 30, 2023
Aug 16, 2023CApt 3L · HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTSep 11, 2023
Aug 16, 2023CApt 3L · § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE UPPER WINDOW SASH IN THE KITCHEN LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTAug 22, 2023
Aug 16, 2023BApt 3L · § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTSep 20, 2023
Aug 16, 2023CApt 3L · HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTSep 11, 2023
Nov 14, 2006BSECTION 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF REFRIGERATORS ( 2 )1ST AND 2ND STORIES AT PUBLIC HALLDec 24, 2006
Sep 18, 2006ASECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT CEILING AND WALLS AT 3RD STORY PUBLIC HALLDec 27, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR AT 3RD STORY PBULIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF BICYCLES AND HOUSEHOLD ITEM AT 3RD STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005, 2007 ADM CODE FIRE EGRESS DEFECTIVE. MAKE STATIONARY THE IRON LADDER LEADING TO SCUTTLE OPENING IN ROOF AT 3RD STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE REPLACE WITH NEW THE MISSING BALUSTER AT BALUSTRADE AT 3RD STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE SKYLIGHT GLASS AT ROOFOct 28, 2006
Sep 18, 2006ASECTION 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME READILY ACCESSIBLE FOR SIGNATURE, BOTTOM EDGE OF FRAME BETWEEN 48-62 INCHES ABOVE FLOOR AT 1ST STORY PUBLIC HALL FRAME MISSINGDec 27, 2006
Sep 18, 2006ASECTION 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME READILY ACCESSIBLE FOR SIGNATURE, BOTTOM EDGE OF FRAME BETWEEN 48-62 INCHES ABOVE FLOOR AT 1ST STORY PUBLIC HALL MAILBOXES MISSINGDec 27, 2006
Sep 18, 2006CSECTION 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM AT OR NEAR MAILBOXES 1ST STORY PUBLIC HALLSep 29, 2006
Sep 18, 2006CSECTION 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM PAD LOCK AT DOOR TO BASEMENT AT 1ST STORY PUBLIC HALLSep 29, 2006
Sep 18, 2006ASECTION 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX AT 1ST STORY PUBLIC HALLDec 27, 2006
Sep 18, 2006ASECTION 27-2046.1 HMC: POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, IN A COMMON AREA OF A CLASS A MULTIPLE DWELLING NEAR INSPECTION CERTIFICATE OR PROVIDE NOTICE TO TENANTS IN A PRIVATE DWELLING.Dec 27, 2006
Sep 18, 2006ASECTION 27-2104 ADM CODE POST AND MAINTAIN A PROPER SIGN ON WALL OF ENTRANCE STORY SHOWING THE REGISTRATION NUMBER ASSIGNED BY THE DEPARTMENT AND THE ADDRESS OF THE BUILDING.Dec 27, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDENT PLASTER AT WALLS AND CEILING AT 1ST STORY PUBLIC HALL VESTIBULEOct 28, 2006
Sep 18, 2006ASECTION 27-2005 ADM CODE REFIT DOOR AT 1ST STORY PUBLIC HALL VESTIBULEDec 27, 2006
Sep 18, 2006ASECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT CEILINGS AND WALLS AT 1ST STORY PUBLIC HALLDec 27, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR AT 1ST STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF BUILDING MATERIAL AT 1ST STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF REFRIGERATOR AT 2ND STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR AT 2ND STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDENT PLASTER CEILING AND WALLS AT 2ND STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE REPLACE WITH NEW THE MISSING BALUSTER AT BALUSTRADE AT 2ND STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006BSECTION 27-2005 ADM CODE PROPERLY SECURE THE LOOSE LIGHT FIXTURE AT SOUTH WALL AT 3RD STORY PUBLIC HALLOct 28, 2006
Sep 18, 2006ASECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT CEILING AND WALLS AT 2ND STORY PUBLIC HALLDec 27, 2006
Mar 28, 2006BSECTION 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR WALLS AND CEILING AT PUBLIC HALL, 1st STORYMay 7, 2006
Aug 23, 1988CApt 3R · SECTION 27-2013 ADM CODE REMOVE OR COVER IN A MANNER APPROVED BY THE DEPARTMENT THE PEELING LEAD PAINT CEILING WEST WALL 3 STY APT 3R 1 ROOM FROM KITCHEN SANTIAGO NO PHONE. , SECTION '' ''Sep 12, 1988

Issued in the last 120 days

DateSourceWhatNow
Oct 19, 2026HPD B§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD GARBAGE AT PUBLIC HALL, 1st STORYOpen

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 23, 2026, 1:31 PM ET. BBL 3031650032.

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