Brooklyn · Block 3392 · Lot 9 · 11221

713 Knickerbocker Avenue

3 floors · 2 apartments · 3,259 sq ft · built 1901 · class S2 · owner of record: Knickerbocker 713 Llc

12open 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 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 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 65 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 65 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: 2025-07-24 (Accepted). Agency page

Dec 31, 2026
in 65 days
1 of 1 without an accepted 2026 report yet

Open violations

ECB / OATH (2)
IssuedViolationHearingBalance
Nov 16, 2009Boilers CLASS - 3
50-NEED EMERGENCY SHUT OFF SWITCH OUTSIDE BL RM 48B
#32067385P
Aug 2, 2010
DEFAULT
$0
Feb 8, 2005Boilers Non-Hazardous
11A/50C 18A 18B 48B 50A 50B 1987 COLUMBIA NATL BD #123126 50A PIPE DOWN SAFETY VALVE DISCHARGE TO A SAFE POINT. 50B PIPE DOWN THE GLASS DRAIN VALVE TO A SAFE POINT. 50C THE CASEING ON THE BOILER IS DAMAGED.
#32047149P
Mar 28, 2005
IN VIOLATION
$0
DOB (5)
IssuedViolationStatus
Jun 20, 2023HIGH PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2018 INTERNAL HGH PRESSURE INSPECTION
#02360
DOB VIOLATION - ACTIVE
Apr 25, 2023HIGH PRESSURE BOILER
VIOLATION ISSUED-FAILURE TO FILE 2022 INTERNAL HIGH PRESSURE INSPECTION
#00557
DOB VIOLATION - ACTIVE
Mar 16, 2020HIGH PRESSURE BOILER
VIOLATION ISSUED - FAILURE TO FILE 2017 EXTERNAL HIGH PRESSURE BOILER INSPECTION
#00612
DOB VIOLATION - ACTIVE
Mar 16, 2020HIGH PRESSURE BOILER
VIOLATION ISSUED - FAILURE TO FILE 2017 INTERNAL HIGH PRESSURE BOILER INSPECTION
#00633
DOB VIOLATION - ACTIVE
Aug 16, 1993LOCAL LAW 62/91 - BOILERS

#27212
DOB VIOLATION - ACTIVE
DOB NOW Safety (5)
IssuedViolationStatus
Oct 25, 2024Boiler FTC-BE-EXT-HP
Violation Issued-Failure To File 2023 External Inspection Affirmation of Correction for HP Device
Active
Jun 20, 2023Boiler HBLVIO
VIOLATION ISSUED-FAILURE TO FILE 2018 INTERNAL HGH PRESSURE INSPECTION
Active
Apr 25, 2023Boiler HBLVIO
VIOLATION ISSUED - FAILURE TO FILE 2022 INTERNAL HIGH PRESSURE BOILER INSPECTION
Active
Mar 16, 2020Boiler HBLVIO
VIOLATION ISSUED - FAILURE TO FILE 2017 EXTERNAL HIGH PRESSURE BOILER INSPECTION
Active
Mar 16, 2020Boiler HBLVIO
VIOLATION ISSUED - FAILURE TO FILE 2017 INTERNAL HIGH PRESSURE BOILER INSPECTION
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 27, 2026, 4:56 AM ET. BBL 3033920009.

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