Brooklyn · Block 3378 · Lot 10 · 11221

663 Knickerbocker Avenue

3 floors · 2 apartments · 4,300 sq ft · built 1910 · class S2 · owner of record: 663 Property Llc

85open violations
$0ECB/OATH penalties owed
2HPD 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 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

OverdueRegistration expired 2025-09-01
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)
Annual boiler inspection (3 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: 2026-10-06 (Accepted). Agency page

Dec 31, 2026
in 68 days
2 of 3 without an accepted 2026 report yet

Open violations

ECB / OATH (0)

None open.

DOB (29)
IssuedViolationStatus
Jun 30, 2023LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION
#13996
DOB VIOLATION - ACTIVE
Jun 20, 2023LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION
#35030
DOB VIOLATION - ACTIVE
Jun 20, 2023LOW PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION
#13988
DOB VIOLATION - ACTIVE
Nov 8, 2019LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT
#08531
DOB VIOLATION - ACTIVE
Apr 6, 2018LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2016 INSPECTION REPORT
#10657
DOB VIOLATION - ACTIVE
Feb 24, 2017LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2015 INSPECTION REPORT
#08437
DOB VIOLATION - ACTIVE
Oct 1, 2015LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2014 INSPECTION REPORT
#07398
DOB VIOLATION - ACTIVE
Mar 3, 2015LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT
#10928
DOB VIOLATION - ACTIVE
May 15, 2014LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2012 INSPECTION REPORT
#12945
DOB VIOLATION - ACTIVE
Mar 1, 2013LOW PRESSURE BOILER
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2011 INSPECTION REPORT
#09155
DOB VIOLATION - ACTIVE
Jan 1, 2009LOCAL LAW 62/91 - BOILERS

#14669
DOB VIOLATION - ACTIVE
Jan 3, 2008LOCAL LAW 62/91 - BOILERS

#14616
DOB VIOLATION - ACTIVE
Jan 19, 2007LOCAL LAW 62/91 - BOILERS

#14893
DOB VIOLATION - ACTIVE
Jan 6, 2006LOCAL LAW 62/91 - BOILERS

#14413
DOB VIOLATION - ACTIVE
Jan 31, 2005LOCAL LAW 62/91 - BOILERS

#15424
DOB VIOLATION - ACTIVE
Feb 13, 2004LOCAL LAW 62/91 - BOILERS

#16618
DOB VIOLATION - ACTIVE
Mar 19, 2003LOCAL LAW 62/91 - BOILERS

#19285
DOB VIOLATION - ACTIVE
Mar 26, 2002LOCAL LAW 62/91 - BOILERS

#20634
DOB VIOLATION - ACTIVE
Feb 27, 2001LOCAL LAW 62/91 - BOILERS

#19496
DOB VIOLATION - ACTIVE
Feb 7, 2000LOCAL LAW 62/91 - BOILERS

#19925
DOB VIOLATION - ACTIVE
Mar 16, 1999LOCAL LAW 62/91 - BOILERS

#19609
DOB VIOLATION - ACTIVE
May 4, 1998LOCAL LAW 62/91 - BOILERS

#21341
DOB VIOLATION - ACTIVE
Sep 16, 1997LOCAL LAW 62/91 - BOILERS

#232075
DOB VIOLATION - ACTIVE
Feb 10, 1997LOCAL LAW 62/91 - BOILERS

#25272
DOB VIOLATION - ACTIVE
Aug 29, 1995LOCAL LAW 62/91 - BOILERS

#29285
DOB VIOLATION - ACTIVE
Jun 1, 1994LOCAL LAW 62/91 - BOILERS

#12933
DOB VIOLATION - ACTIVE
Aug 16, 1993LOCAL LAW 62/91 - BOILERS

#27853
DOB VIOLATION - ACTIVE
Aug 16, 1993LOCAL LAW 62/91 - BOILERS

#21882
DOB VIOLATION - ACTIVE
Jun 1, 1993LOCAL LAW 62/91 - BOILERS

#12932
DOB VIOLATION - ACTIVE
DOB NOW Safety (27)
IssuedViolationStatus
Jun 30, 2023Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION
Active
Jun 20, 2023Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION
Active
Jun 20, 2023Boiler LBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION
Active
Nov 8, 2019Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT
Active
Apr 6, 2018Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2016 INSPECTION REPORT
Active
Feb 24, 2017Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2015 INSPECTION REPORT
Active
Oct 1, 2015Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2014 INSPECTION REPORT
Active
Mar 3, 2015Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT
Active
May 15, 2014Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2012 INSPECTION REPORT
Active
Mar 1, 2013Boiler LBLVIO
VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2011 INSPECTION REPORT
Active
Jan 1, 2009Boiler LL6291
Active
Jan 3, 2008Boiler LL6291
Active
Jan 19, 2007Boiler LL6291
Active
Jan 6, 2006Boiler LL6291
Active
Jan 31, 2005Boiler LL6291
Active
Feb 13, 2004Boiler LL6291
Active
Mar 19, 2003Boiler LL6291
Active
Mar 26, 2002Boiler LL6291
Active
Feb 27, 2001Boiler LL6291
Active
Feb 7, 2000Boiler LL6291
Active
Mar 16, 1999Boiler LL6291
Active
May 4, 1998Boiler LL6291
Active
Sep 16, 1997Boiler LL6291
Active
Feb 10, 1997Boiler LL6291
Active
Aug 29, 1995Boiler LL6291
Active
Jun 1, 1994Boiler LL6291
Active
Jun 1, 1993Boiler LL6291
Active
HPD (29) · C 2 · B 21 · A 5
IssuedClassViolationCorrect by
Nov 24, 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—
Sep 3, 2019BApt 3FL · § 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... AT CEILING APPX 3 SQ.FT , SOUTH WALL APPX 2 SQ.FT , EAST WALL APPX. 2 SQ.FT IN THE BATHROOM LOCATED AT APT 3FL, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH ORIGINAL VIOLATION 12926318 ISSUED 22-FEB-19 HAS BEEN UPGRAOct 8, 2019
May 23, 2019A§ 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE METAL TREAD NOSINGS-2 THRU 18- UP FROM BOTTOM AT PUBLIC HALL STAIRS, 1st STORYAug 26, 2019
May 23, 2019A§ 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE METAL TREAD NOSINGS-1 THRU 15-UP FROM BOTTOM AT PUBLIC HALL STAIRS, 2nd STORYAug 26, 2019
Dec 19, 2013BApt 2FL · § 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK ABOVE THE CEILING IN THE 3rd ROOM FROM NORTH AT WEST LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR THE CEILING IN THE 4th ROOM FROM NORTH AT WEST LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR THE CEILING IN THE 3rd ROOM FROM NORTH AT WEST LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR THE CEILING IN THE BATHROOM LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 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 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2005 ADMIN. CODE: PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR IN THE 4th ROOM FROM NORTH AT WEST LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK ABOVE THE CEILING IN THE 4th ROOM FROM NORTH AT WEST LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2005 ADMIN. CODE: PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR IN THE 1st ROOM FROM NORTH AT WEST LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Dec 19, 2013BApt 2FL · § 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK ABOVE THE CEILING IN THE BATHROOM LOCATED AT APT 2FL, 2nd STORY, 1st APARTMENT FROM WEST AT NORTHJan 23, 2014
Jun 12, 2008B§ 27-2005,2007 ADMIN. CODE: FIRE EGRESS DEFECTIVE. REMOVE OBSTRUCTING BARS OR GATES FROM WINDOW TO FIRE ESCAPE NORTHEAST ROOM -2ND STY APT.Jul 17, 2008
Jun 12, 2008A§ 27-2013 ADMIN. CODE: PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT WALLS & CEILINGS PUBLIC HALLS ALL STYS.Sep 15, 2008
Jun 12, 2008B§ 27-2005,2007 ADMIN. CODE: FIRE EGRESS DEFECTIVE. REMOVE OBSTRUCTING BARS OR GATES FROM WINDOW TO FIRE ESCAPE 2ND STY APT.Jul 17, 2008
Jun 12, 2008B§ 27-2005 ADMIN. CODE: PROPERLY SECURE THE LOOSE ELECTRIC LIGHT FIXTURE AT CEILING FRONT SOUTH ROOM -3RD STY APT.Jul 17, 2008
Jun 12, 2008A§ 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE UNHINGED DOOR --2ND ROOM FROM FRONT --3RD STY. APT.Sep 15, 2008
Jun 12, 2008B§ 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE OVEN DOOR--GAS RANGE-KITCHEN - 3RD STY. APT.Jul 17, 2008
Jun 12, 2008B§ 27-2005 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF EXPOSED ELECTRIC WIRE-WALL SWITCH TO CEILING FIXTURE-FRONT SOUTH ROOM- 3RD STY. APT.Jul 17, 2008
Jun 12, 2008B§ 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOCK--VESTIBULE DOOR TO 1ST STY. PUBLIC HALL.Jul 17, 2008
Jun 12, 2008C§ 27-2005 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF DEVICE PRESENT ON CENTRAL HEATING SYSTEM WHICH IS CAPABLE OF CAUSING AN OTHERWISE OPERABLE SYSTEM TO BECOME INOPERABLE.Jun 18, 2008
Jun 12, 2008B§ 27-2005 ADMIN. CODE: REPLACE WITH NEW THE MISSING GLASS AT VESTIBULE ENTRANCE DOOR TO 1 STY. PUBLIC HALL.Jul 17, 2008
Jun 12, 2008A§ 27-2013 ADMIN. CODE: PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT WALLS & CEILING 2 ROOM FROM FRONT 2 STY. APT.Sep 15, 2008
Jun 12, 2008C§ 27-2031 ADMIN. CODE: PROVIDE HOT WATER AT ALL HOT WATER FIXTURES AT 2ND FL. APT. 2 TEMP. 50 DEGREESJun 18, 2008
Jun 12, 2008B§ 27-2026 ADMIN. CODE: REPAIR THE LEAKY AND/OR DEFECTIVE FAUCETS WASH BASIN & BATHTUB 2ND STORY APT. 2.Jul 17, 2008
Jun 12, 2008B§ 27-2005 ADMIN. CODE: REPLACE WITH NEW THE MISSING DOOR KNOBS OF VESTIBULE DOOR TO 1ST STY PUBLIC HALL.Jul 17, 2008

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, 6:36 PM ET. BBL 3033780010.

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