Brooklyn · Block 3326 · Lot 2 · 11221

537 Knickerbocker Avenue

4 floors · 8 apartments · 9,000 sq ft · built 1905 · class C1 · owner of record: 1s Reo Opportunity 1, Llc

54open violations
$0ECB/OATH penalties owed
25HPD 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 2026-09-01
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 68 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 68 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 68 days
Annual
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: 2022-12-11 (Accepted). Agency page

Dec 31, 2026
in 68 days
1 of 1 without an accepted 2026 report yet
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 84 days
Annual

Open violations

ECB / OATH (0)

None open.

DOB (3)
IssuedViolationStatus
Nov 14, 2025LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION
#11481
DOB VIOLATION - ACTIVE
Sep 23, 2024LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2023 EXTERNAL LOW PRESSURE INSPECTION
#10432
DOB VIOLATION - ACTIVE
Feb 24, 2017LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2015 INSPECTION REPORT
#07611
DOB VIOLATION - ACTIVE
DOB NOW Safety (3)
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
Feb 24, 2017Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2015 INSPECTION REPORT
Active
HPD (48) · C 25 · B 16 · A 5
IssuedClassViolationCorrect by
Jan 31, 2017I§27-2153 ADM CODE THE PREMISES HAS BEEN SELECTED TO PARTICIPATE IN THE ALTERNATIVE ENFORCEMENT PROGRAM WHICH MAY RESULT IN BUILDING-WIDE INSPECTIONS, FEES, AND EXTENSIVE REPAIR WORK TO CORRECT VIOLATIONS AND UNDERLYING CONDITIONS. CHARGES FOR REPAIR WORK DONE PURSUANT TO THIS ORDER, IF NOT PAID, WIL—
May 20, 2025I§ 27-2089 ADM CODE THE PREMISES HAVE BEEN VACATED BY AN ORDER OF THIS DEPARTMENT AND CANNOT BE REOCCUPIED EXCEPT FOR CARETAKER, UNTIL (1) AN APPLICATION AND PLAN FOR THE WORK REQUIRED BY THIS ARTICLE HAVE BEEN FILED WITH AND APPROVED BY THE DEPARTMENT OF BUILDINGS, WHERE REQUIRED, (2) SUCH WORK HAS —
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
Jun 4, 2025C§ 27-2005 ADM CODE PROVIDE TEMPORARY SEAL UP ALL OPENIG THROUGHOUTJun 10, 2025
May 14, 2025C567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND ALL UNDERLYING CAUSES CREATING THE PEST INFESTATIONS, BY USING INTEGRATED PEST MANAGEMENT (IPM), ELIMINATE ALL BURROW ENTRY AND PASSAGEWAYS, PEST NESTS, HOLES, GJun 9, 2025
May 12, 2025C§ 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRINGMay 18, 2025
May 12, 2025C§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE ...ENTIRE CELLARMay 18, 2025
May 12, 2025C567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND ALL UNDERLYING CAUSES CREATING THE PEST INFESTATIONS, BY USING INTEGRATED PEST MANAGEMENT (IPM), ELIMINATE ALL BURROW ENTRY AND PASSAGEWAYS, PEST NESTS, HOLES, GJun 7, 2025
May 12, 2025C§ 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT ENTIRE BUILDINGMay 18, 2025
May 12, 2025C§ 27-2037, 2038 HMC: PROVIDE A SAFE AND ADEQUATE SUPPLY OF ELECTRIC SERVICE TO THE FIXTURES AT PUPLIC PARTSMay 18, 2025
Apr 4, 2025CApt 3R · § 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXTENTION CORD RUNNIG FROM APARTMENT TO PUBLIC HALL IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORYApr 10, 2025
Apr 3, 2025C§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR LOCKED AT BOILER ROOM, 1st STORYApr 9, 2025
Apr 3, 2025CApt 3R · § 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM NORTH AT EASTApr 3, 2025
Apr 3, 2025CApt 3R · § 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM NORTH AT EASTApr 3, 2025
Sep 3, 2024CApt 3R · HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHSep 29, 2024
Sep 3, 2024CApt 3R · § 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 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHSep 9, 2024
Sep 3, 2024CApt 3R · § 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHSep 9, 2024
Sep 3, 2024CApt 3R · HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF RODENTS RAT EXCERTA IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHSep 29, 2024
Sep 3, 2024CApt 3R · § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD SUB. FLOOR IN THE PRIVATE HALLWAY LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHSep 9, 2024
Sep 3, 2024B§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS AT PUBLIC HALL STAIRS, 4th STORYOct 8, 2024
Apr 10, 2024A(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.Jul 14, 2024
Mar 14, 2023CApt 3R · HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTApr 9, 2023
Mar 14, 2023CApt 3R · HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTApr 9, 2023
Mar 1, 2023C§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE .. AT CELLARMar 7, 2023
Feb 21, 2023C§ 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 PUBLIC HALL, 1st STORYFeb 27, 2023
Feb 21, 2023BApt 3R · § 27-2005 ADM CODE REPLACE WITH NEW THE MISSING LIGHT FIXTURE AT THE CEILING IN THE FOYER LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTHMar 28, 2023
Feb 21, 2023BApt 3R · § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISING IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTHMar 28, 2023
Feb 21, 2023BApt 3R · § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE FOYER LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTHMar 28, 2023
Feb 21, 2023BApt 3R · § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTHMar 28, 2023
Feb 21, 2023BApt 3R · § 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE MARBLE SADDLE IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTHMar 28, 2023
Feb 21, 2023BApt 3R · § 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTHMar 28, 2023
Feb 21, 2023C§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM ... PADLOCKED BASEMENT DOOR AT PUBLIC HALL, 1st STORYFeb 27, 2023
Feb 8, 2023C§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE FLOOR AT CELLARFeb 14, 2023
Feb 8, 2023C§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE PAVING FLOOR AT CELLAR AT CELLARFeb 14, 2023
Feb 8, 2023C§ 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED ELECTRICAL WIRING AYT CEILING AT CELLARFeb 14, 2023
Jan 30, 2023C§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR LOCKED AT BASEMENTFeb 5, 2023
Oct 9, 2018BApt 3R · § 27-2005 HMC:TRACE AND REPAIR THE SOURCE AND ABATE THE NUISANCE CONSISTING OF MOLD ... ..AT WALLS AND CEILING..APPX 15 SQ FEET IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM NORTH AT EASTNov 13, 2018
Oct 9, 2018BApt 3R · § 27-2018 ADM CODE ABATE THE NUISANCE CONSISTING OF VERMIN ..FLIES THROUGHOUT IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM NORTH AT EASTNov 13, 2018
Oct 1, 2018BApt 4R · § 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4R, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNov 5, 2018
Oct 1, 2018BApt 4R · § 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE ROOM ENTRANCE DOOR IN THE 4th ROOM FROM EAST LOCATED AT APT 4R, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNov 5, 2018
Sep 18, 2018BApt 4R · § 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE THE DOOR IN THE 4th ROOM FROM EAST LOCATED AT APT 4R, 4th STORY, 2nd APARTMENT FROM NORTH AT EASTOct 23, 2018
Sep 18, 2018AApt 4R · § 27-2026 ADM CODE RESET, SO AS TO SECURE A PROPER AND TIGHT CONNECTION, THE WATER CLOSET BOWL .. IN THE BATHROOM LOCATED AT APT 4R, 4th STORY, 2nd APARTMENT FROM NORTH AT EASTDec 22, 2018
Sep 18, 2018BApt 4R · § 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4R, 4th STORY, 2nd APARTMENT FROM NORTH AT EASTOct 23, 2018
Aug 8, 2018AApt 3R · § 27-2005 HMC:TRACE AND REPAIR THE SOURCE AND ABATE THE NUISANCE CONSISTING OF MOLD ... AT THE CEILING IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM NORTH AT EASTNov 11, 2018
Jul 13, 2017BApt 4R · § 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4R, 4th STORY, 2nd APARTMENT FROM WEST AT NORTHAug 17, 2017
Jul 7, 2016BApt 4R · § 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4R, 4th STORY, 2nd APARTMENT FROM NORTH AT EASTAug 11, 2016
May 26, 2016BApt 3R · § 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM NORTH AT EASTJun 30, 2016

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 24, 2026, 2:32 PM ET. BBL 3033260002.

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