Brooklyn · Block 3009 · Lot 5 · 11237

91 Knickerbocker Avenue

3 floors · 6 apartments · 4,125 sq ft · built 1931 · class C2 · owner of record: Jogab Realty Corp

17open violations
$0ECB/OATH penalties owed
0HPD 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
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 70 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 70 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: 2025-10-24 (Accepted). Agency page

Dec 31, 2026
in 70 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 86 days
Annual
Gas piping inspection (2028 cycle) Likely applies
Local Law 152 · During 2028
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 1 is on the 2028 cycle; certification is filed with DOB after the inspection. Buildings with no gas piping file a certification instead. Agency page

Dec 31, 2028
in 801 days
Next cycle year 2028

Open violations

ECB / OATH (1)
IssuedViolationHearingBalance
Mar 17, 1994Construction Hazardous
FAILURE TO MAINTAIN: DEFECT IS: MISSING MORTAR JOINTS EXTERIOR WEST W-ALL, BULK HEAD DOOR REMOVED AT ROOF, CELLAR TO ROOF MISSING OR BROKEN STAIR TREADS NEWELS, POSTS + BANISTERS AT VARIOUS LOCATIONS, WINDOWS N
#34105860M
May 9, 1994
WRITTEN OFF
$0
DOB (5)
IssuedViolationStatus
Dec 31, 2009LOW PRESSURE BOILER

#13468
DOB VIOLATION - ACTIVE
Jan 31, 2005LOCAL LAW 62/91 - BOILERS

#12326
DOB VIOLATION - ACTIVE
Feb 13, 2004LOCAL LAW 62/91 - BOILERS

#13379
DOB VIOLATION - ACTIVE
Mar 19, 2003LOCAL LAW 62/91 - BOILERS

#18199
DOB VIOLATION - ACTIVE
Aug 16, 1993LOCAL LAW 62/91 - BOILERS

#22248
DOB VIOLATION - ACTIVE
DOB NOW Safety (5)
IssuedViolationStatus
Jan 8, 2026Gas Piping - LL152 FTF-PL-PER
Cycle 2, Sub-cycle A (premises is in Community District 1)
Active
Dec 31, 2009Boiler LBLVIO
Active
Jan 31, 2005Boiler LL6291
Active
Feb 13, 2004Boiler LL6291
Active
Mar 19, 2003Boiler LL6291
Active
HPD (6) · C 0 · B 5 · A 1
IssuedClassViolationCorrect by
Dec 7, 2018B§ 27-2005 ADM CODE FIRE ESCAPE DEFECTIVE. ADJUST THE DROPLADDER SO THAT IT WILL SLIDE EASILY IN THE GUIDE RODS AT BUILDING REAR STACKJan 11, 2019
Dec 7, 2018B§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDANT CEILING THROUGHOUT AT CELLARJan 11, 2019
Dec 7, 2018B§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC TILE FLOOR AT VESTIBULE , 1st STORYJan 11, 2019
Nov 5, 2009AApt 3R · § 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT WINDOW STOOL IN THE 3rd ROOM FROM EAST LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTHFeb 8, 2010
Aug 13, 2003B§ 27-2005 ADM CODE REPLACE WITH NEW THE MISSING SKYLIGHT DUMBWAITER SHAFT ROOF EAST.Sep 22, 2003
Aug 13, 2003B§ 27-2005 ADM CODE PROVIDE FIRE PROOF SELF CLOSING DOOR STAIRS BULKHEAD.Sep 22, 2003

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 22, 2026, 4:55 PM ET. BBL 3030090005.

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