Brooklyn · Block 3307 · Lot 34 · 11237

484 Knickerbocker Avenue

1 floors · 5,000 sq ft · built 1982 · class M1 · owner of record: Knickerbocker Ave M E

42open violations

$0ECB/OATH penalties owed

0HPD 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

Requirement	Due	Status
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)
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: 2026-03-17 (Accepted). Agency page	On file	2026 reports accepted

Open violations

ECB / OATH (0)

None open.

DOB (21)

Issued	Violation	Status
Jun 20, 2023	LOW PRESSURE BOILER VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION #38976	DOB VIOLATION - ACTIVE
Jun 20, 2023	LOW PRESSURE BOILER VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION #18867	DOB VIOLATION - ACTIVE
Jan 17, 2020	LOW PRESSURE BOILER VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT #01969	DOB VIOLATION - ACTIVE
Mar 3, 2015	LOW PRESSURE BOILER VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT #10933	DOB VIOLATION - ACTIVE
Mar 1, 2013	LOW PRESSURE BOILER VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2011 INSPECTION REPORT #09070	DOB VIOLATION - ACTIVE
Dec 13, 2011	LOW PRESSURE BOILER VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2010 INSPECTION REPORT #12097	DOB VIOLATION - ACTIVE
Dec 31, 2009	LOW PRESSURE BOILER #14126	DOB VIOLATION - ACTIVE
Jan 1, 2009	LOCAL LAW 62/91 - BOILERS #12990	DOB VIOLATION - ACTIVE
Jan 3, 2008	LOCAL LAW 62/91 - BOILERS #13030	DOB VIOLATION - ACTIVE
Jan 19, 2007	LOCAL LAW 62/91 - BOILERS #13434	DOB VIOLATION - ACTIVE
Jan 6, 2006	LOCAL LAW 62/91 - BOILERS #12906	DOB VIOLATION - ACTIVE
Jan 31, 2005	LOCAL LAW 62/91 - BOILERS #13866	DOB VIOLATION - ACTIVE
Feb 13, 2004	LOCAL LAW 62/91 - BOILERS #15073	DOB VIOLATION - ACTIVE
Mar 19, 2003	LOCAL LAW 62/91 - BOILERS #19100	DOB VIOLATION - ACTIVE
Mar 26, 2002	LOCAL LAW 62/91 - BOILERS #20424	DOB VIOLATION - ACTIVE
Feb 27, 2001	LOCAL LAW 62/91 - BOILERS #19322	DOB VIOLATION - ACTIVE
Mar 16, 1999	LOCAL LAW 62/91 - BOILERS #19439	DOB VIOLATION - ACTIVE
May 4, 1998	LOCAL LAW 62/91 - BOILERS #19837	DOB VIOLATION - ACTIVE
Jun 1, 1994	LOCAL LAW 62/91 - BOILERS #09099	DOB VIOLATION - ACTIVE
Aug 16, 1993	LOCAL LAW 62/91 - BOILERS #25252	DOB VIOLATION - ACTIVE
Jun 1, 1993	LOCAL LAW 62/91 - BOILERS #09098	DOB VIOLATION - ACTIVE

DOB NOW Safety (21)

Issued	Violation	Status
Oct 31, 2025	Gas Piping - LL152 FTF-PL-PER Cycle 1, Sub-cycle C (premises is in Community District 4)	Active
Jun 20, 2023	Boiler LBLVIO VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION	Active
Jun 20, 2023	Boiler LBLVIO VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION	Active
Jan 17, 2020	Boiler LBLVIO VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT	Active
Mar 3, 2015	Boiler LBLVIO VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT	Active
Mar 1, 2013	Boiler LBLVIO VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2011 INSPECTION REPORT	Active
Dec 13, 2011	Boiler LBLVIO VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2010 INSPECTION REPORT	Active
Dec 31, 2009	Boiler LBLVIO	Active
Jan 1, 2009	Boiler LL6291	Active
Jan 3, 2008	Boiler LL6291	Active
Jan 19, 2007	Boiler LL6291	Active
Jan 6, 2006	Boiler LL6291	Active
Jan 31, 2005	Boiler LL6291	Active
Feb 13, 2004	Boiler LL6291	Active
Mar 19, 2003	Boiler LL6291	Active
Mar 26, 2002	Boiler LL6291	Active
Feb 27, 2001	Boiler LL6291	Active
Mar 16, 1999	Boiler LL6291	Active
May 4, 1998	Boiler LL6291	Active
Jun 1, 1994	Boiler LL6291	Active
Jun 1, 1993	Boiler LL6291	Active

HPD (0)

None open.

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, 8:02 PM ET. BBL 3033070034.

484 Knickerbocker Avenue

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Compliance deadlines

Open violations

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