Brooklyn · Block 3430 · Lot 28 · 11207

858 Knickerbocker Avenue

3 floors · 6 apartments · 4,725 sq ft · built 1910 · class C2 · owner of record: Wai Lam

78open violations
$0ECB/OATH penalties owed
8HPD class C (immediately hazardous)
69dto Gas piping inspection (2026 cycle)

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

Compliance deadlines

RequirementDueStatus
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
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

Sep 1, 2027
in 313 days
Registered through 2027-09-01
Annual boiler inspection (1 boiler) 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: 2026-04-27 (Accepted). Agency page

On file2026 reports accepted

Open violations

ECB / OATH (0)

None open.

DOB (1)
IssuedViolationStatus
Jan 31, 2005LOCAL LAW 62/91 - BOILERS

#12736
DOB VIOLATION - ACTIVE
DOB NOW Safety (1)
IssuedViolationStatus
Jan 31, 2005Boiler LL6291
Active
HPD (76) · C 8 · B 44 · A 24
IssuedClassViolationCorrect by
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
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 2, 2017BApt 1R · § 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING LOCATED AT B-ROOM 1R, 1st STORY, 1st B-ROOM FROM NORTH AT EASTNov 6, 2017
Aug 30, 2017A§ 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 SUSPECTEDDec 3, 2017
Aug 25, 2017BApt 1R · § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES STOVE IN THE KITCHEN LOCATED AT APT 1R, 1st STORY, 4th APARTMENT FROM SOUTH AT WESTSep 29, 2017
Apr 20, 2017BApt 1L · § 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017BApt 1L · § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE BATHROOM LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017BApt 1L · § 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017BApt 1L · § 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE MORTISE LOCK ON METAL DOOR IN THE ENTRANCE LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017BApt 1L · § 27-2005 ADM CODE PROPERLY SECURE THE LOOSE METAL FRAME AT DOOR IN THE ENTRANCE LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017BApt 1L · § 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE WOOD DOOR JAMB TO DOOR FRAME IN THE 1st ROOM FROM EAST LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017AApt 1L · § 27-2005 ADM CODE PAINT METAL IN ACCORDANCE WITH DEPT. REGULATION ALL RADIATORS AND STEAM RISERS IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHJul 24, 2017
Apr 20, 2017BApt 1L · § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017AApt 1L · § 27-2005 ADM CODE REFIT LOWER SASH WINDOWS IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHJul 24, 2017
Apr 20, 2017BApt 1L · § 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017BApt 1L · § 27-2005 ADM CODE PROPERLY SECURE THE LOOSE FAUCET AT SINK IN THE KITCHEN LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017BApt 1L · § 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOCKING DEVICE ON DOOR TO REAR YARD IN THE 3rd ROOM FROM EAST LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Apr 20, 2017BApt 1L · § 27-2005 ADM CODE REPLACE WITH NEW THE MISSING KNOB ON METAL DOOR IN THE 1st ROOM FROM EAST LOCATED AT APT 1L, 1st STORY, APARTMENT AT SOUTHMay 25, 2017
Mar 1, 2017AApt 1L · § 27-2005 ADM CODE REFIT WINDOWS SASHES IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTJun 4, 2017
Mar 1, 2017BApt 1L · § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISING LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTApr 5, 2017
Mar 1, 2017BApt 1L · § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTApr 5, 2017
Mar 1, 2017A§ 27-2027 ADM CODE PROVIDE PROPERLY TRAPPED, SEWER CONNECTED, RAIN LEADER SO AS TO PROVIDE PROPER DRAINAGE AND FILE AN APPLICATION FOR APPROVAL BEFORE DOING THE WORK AT REAR YARDJun 4, 2017
Mar 1, 2017B§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE PAVING AT REAR YARDApr 5, 2017
Mar 1, 2017BApt 1L · § 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTApr 5, 2017
Feb 23, 2017B§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF BIKE STORED AT PUBLIC HALL, 1st STORYMar 30, 2017
Feb 21, 2017BApt 1L · § 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTMar 28, 2017
Feb 21, 2017AApt 1L · § 27-2005 ADM CODE REFIT WINDOW IN THE 1st ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTMay 27, 2017
Feb 21, 2017BApt 1L · § 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE WINDOW COUNTER BALANCE LOWER SASH IN THE 3rd ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTMar 28, 2017
Feb 21, 2017BApt 1L · § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE 2nd ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTMar 28, 2017
Feb 21, 2017BApt 1L · § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTMar 28, 2017
Dec 29, 2016BApt 1L · § 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE COUNTER BALANCE AT LOWER WINDOW SASH AT NORTH WALL IN THE 1st ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTFeb 2, 2017
Dec 29, 2016BApt 1L · § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING AND ALL WALLS IN THE BATHROOM LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTFeb 2, 2017
Dec 29, 2016BApt 1L · § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC FLOOR TILES IN THE 3rd ROOM FROM NORTH AT EAST LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTFeb 2, 2017
Dec 29, 2016BApt 1L · § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE MARBLE SADDLE AT ENTRANCE IN THE 1st ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTFeb 2, 2017
Dec 29, 2016BApt 1L · § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE 2nd ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTFeb 2, 2017
Aug 12, 2016ASECTION 26-1103 ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCY?S HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD., 1st STORYNov 15, 2016
Aug 12, 2016BSECTION 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS ON 3RD STORY PUBLIC HALLSep 16, 2016
Aug 12, 2016BSECTION 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE NON SELF LOCKING - LOCK DEVICE AT ROOF DOOR AT BULKHEADSep 16, 2016
Aug 5, 2016BSECTION 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE FRONT YARDSep 9, 2016
Jul 29, 2016BApt 1L · SECTION 27-2026 ADM CODE REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS SINK IN THE KITCHEN LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTSep 2, 2016
Jul 29, 2016AApt 1L · SECTION 27-2005 ADM CODE PAINT METAL IN ACCORDANCE WITH DEPT. REGULATION STEAM RISERS IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTNov 1, 2016
Jul 29, 2016AApt 1L · SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT DOOR FRAME IN THE 1st ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTNov 1, 2016
Jul 29, 2016BApt 1L · SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTSep 2, 2016
Jul 29, 2016BApt 1L · SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTSep 2, 2016
Jul 29, 2016BApt 1L · SECTION 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE AND MAKE OPERABLE THE LOWER SASHES COUNTER BALANCE WINDOWS AT NORTH WALL IN THE 1st ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTSep 2, 2016
Jul 29, 2016AApt 1L · SECTION 27-2005 ADM CODE REFIT THE REAR DOOR IN THE 3rd ROOM FROM NORTH LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTNov 1, 2016
Jul 29, 2016ASECTION 26-1103 ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCY?S HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD. AT PUBLIC HALL, 1st STORYNov 1, 2016
Jul 29, 2016BApt 1L · SECTION 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTSep 2, 2016
Jul 29, 2016BApt 1L · SECTION 27-2005 ADM CODE REPLACE WITH NEW THE MISSING ESCUTCHEON PLATES AT CEILING BY STEAM RISERS IN THE ENTIRE APARTMENT LOCATED AT APT 1L, 1st STORY, 1st APARTMENT FROM NORTH AT EASTSep 2, 2016
Jul 25, 2016BApt 1R · SECTION 27-2005, 2007 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS ... IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, APARTMENT AT SOUTHAug 29, 2016
Jul 25, 2016BApt 1R · SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, APARTMENT AT SOUTHAug 29, 2016
Jul 25, 2016BApt 1R · SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, APARTMENT AT SOUTHAug 29, 2016
Jul 5, 2016AApt 2R · SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE SOUTH WALL, WEST WALL, CEILING IN THE KITCHEN LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHOct 8, 2016
Jul 5, 2016AApt 2R · SECTION 27-2005 ADM CODE PAINT METAL IN ACCORDANCE WITH DEPT. REGULATION THE 1st RISER FROM WEST AT NORTH WALL IN THE KITCHEN LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHOct 8, 2016
Jul 5, 2016AApt 2R · SECTION 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION SUSPENDED CEILING IN THE 1st ROOM FROM EAST LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHOct 8, 2016
Jul 5, 2016AApt 2R · SECTION 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION SUSPENDED CEILING IN THE 2nd ROOM FROM EAST LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHOct 8, 2016
Jul 5, 2016AApt 2R · SECTION 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION SUSPENDED CEILING IN THE 3rd ROOM FROM EAST LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHOct 8, 2016
Jul 5, 2016BSECTION 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE LIGHT FIXTURE AT VESTIBULE. , 1st STORYAug 9, 2016
Jul 5, 2016ASECTION 26-1103 ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCY?S HOUSING INFORMATION GUIDE. A SAMPLE NOTICE CAN BE FOUND AT WWW.NYC.GOV/HPD. AT PUBLIC HALL, 2nd STORYOct 8, 2016
Jul 5, 2016CApt 2R · SECTION 27-2056.6 ADM CODE - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY ?11-06(B)(2) NORTH WALL, EAST WALL IN THE KITCHEN LOCATED AT APT 2R, 2nd STORY, 1st APARTMENTAug 2, 2016

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City records as of Oct 23, 2026, 4:49 AM ET. BBL 3034300028.

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