223 Knickerbocker Avenue
Brooklyn, NY 11237BBL 3-03187-0006Map
Owner of record: 223 Knickerbocker LLC
223 Knickerbocker Avenue is a walk-up apartment building built in 1931 in Brooklyn, 11237. It has 6 residential units across 3 floors. The owner of record is 223 Knickerbocker LLC. HPD has recorded 205 housing violations here, most recently on July 21, 2026. 26 of the 50 most recent violations are still open. City tax records listed 3 rent-stabilized apartments here in 2024.
- HPD violations
- 205
- DOB violations
- 19
- ECB violations
- 4
- HPD complaints
- 738
What to know
Immediately hazardous issues among recent violations are still open.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
Counts come from owners' rent-stabilization filings shown on NYC Department of Finance tax bills, as extracted by JustFix. They tell you a building has stabilized apartments, not which ones.
Think your apartment is stabilized? Request its rent history from HCR (free), then check your renewal with the renewal calculator.
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 205
- BHazardous
Remove all encumbrances consisting of house hold items at public hall, 3rd story
Jul 21, 2026
Open — Nov sent out - BHazardous
Remove all encumbrances consisting of house hold items at public hall, 1st story
Jul 21, 2026
Open — Nov sent out - ANon-hazardous
Cleanse to the satisfaction of this department the wall at east in the bathroom located at apt 1l, 1st story, 1st apartment from west at north
Apr 1, 2026 · Apt 1L
Closed — Violation dismissed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 1r, 1st story, 1st apartment from north at east
Feb 21, 2026 · Apt 1R
Closed — Violation dismissed - BHazardous
Repair, replace or provide an approved and operational smoke detecting device, installed in accordance with department of buildings rules and regulations that is missing in the entire apartment located at apt 1r, 1st story, 1st apartment from north at east
Feb 21, 2026 · Apt 1R
Closed — Violation dismissed - BHazardous
Repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules that is missing in the entire apartment located at apt 1r, 1st story, 1st apartment from north at east
Feb 21, 2026 · Apt 1R
Closed — Violation dismissed - ANon-hazardous
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.
Jun 10, 2025
Closed — Violation dismissed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the bathroom located at apt 1l, 1st story, 1st apartment from south at west
Feb 12, 2025 · Apt 1L
Open — Nov sent out - BHazardous
Properly repair the source and abate the evidence of a water leak at ceiling in the bathroom located at apt 1l, 1st story, 1st apartment from south at west
Feb 12, 2025 · Apt 1L
Open — Nov sent out - BHazardous
Repair or replace the carbon monoxide detecting device(s). missing in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north
May 22, 2024 · Apt 3L
Open — Nov sent out
Show 40 more ↓
- BHazardous
Repair or replace the smoke detector missing in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north
May 22, 2024 · Apt 3L
Open — Nov sent out - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective ... in the entrance located at apt 3l, 3rd story, 1st apartment from west at north
May 22, 2024 · Apt 3L
Open — Nov sent out - BHazardous
Remove all encumbrances consisting of household item at 3rd story. at public hall, 3rd story
May 22, 2024
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective wood flooring in the kitchen located at apt 2r, 2nd story, 1st apartment from east at south
Sep 20, 2023 · Apt 2R
Open — Nov sent out - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 2r, 2nd story, 1st apartment from east at south
Sep 20, 2023 · Apt 2R
Open — Nov sent out - BHazardous
Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 2r, 2nd story, 1st apartment from east at south
Sep 20, 2023 · Apt 2R
Open — Nov sent out - BHazardous
Replace the broken or defective wash basin in the bathroom located at apt 2r, 2nd story, 1st apartment from east at south
Sep 20, 2023 · Apt 2R
Open — Nov sent out - BHazardous
Remove all encumbrances consisting of ladder, shelving, garment rack, bicycle at public hall, 1st story
Sep 20, 2023
Open — Nov sent out - ANon-hazardous
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.
Mar 23, 2023
Closed — Violation dismissed - IInformation / order
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 registration statement is filed.
Nov 14, 2022
Closed — Violation dismissed - ANon-hazardous
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.
Feb 25, 2022
Closed — Violation dismissed - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 2r, 2nd story, 1st apartment from east at south
Nov 5, 2021 · Apt 2R
Open — Notice of issuance sent to tenant - CImmediately hazardous
M/d law abate the nuisance consisting of hot water exceeding 130 degrees in the bathroom located at apt 2r, 2nd story, 1st apartment from east at south
Nov 5, 2021 · Apt 2R
Closed — Violation closed - BHazardous
Properly repair the broken or defective counter balance of lower window sash in the 4th room from east located at apt 2r, 2nd story, 1st apartment from east at south
Nov 5, 2021 · Apt 2R
Open — Nov sent out - BHazardous
Replace with new the missing door at west wall cabinet in the kitchen located at apt 2r, 2nd story, 1st apartment from east at south
Nov 5, 2021 · Apt 2R
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 2r, 2nd story, 1st apartment from east at south
Nov 5, 2021 · Apt 2R
Open — Notice of issuance sent to tenant - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 2r, 2nd story, 1st apartment from east at south
Oct 18, 2021 · Apt 2R
Open — Notice of issuance sent to tenant - BHazardous
Properly repair with similar material the broken or defective wood subfloor in the kitchen located at apt 2r, 2nd story, 1st apartment from east at south
Oct 18, 2021 · Apt 2R
Open — Invalid certification - BHazardous
Properly repair with similar material the broken or defective wood floor in the kitchen located at apt 2r, 2nd story
Aug 12, 2021 · Apt 2R
Open — Nov sent out - ANon-hazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the south wall in the 4th room from north located at apt 2r, 2nd story, apartment at south
Jun 22, 2021 · Apt 2R
Closed — Violation dismissed - ANon-hazardous
Paint metal in accordance with dept. regulation the northeast heat riser in the 2nd room from north located at apt 2r, 2nd story, apartment at south
Jun 22, 2021 · Apt 2R
Closed — Violation dismissed - CImmediately hazardous
Properly repair the source and abate the evidence of a water leak at the east wall in the 3rd room from north located at apt 2r, 2nd story, apartment at south
Jun 22, 2021 · Apt 2R
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the walls in the 3rd room from north located at apt 2r, 2nd story, apartment at south
Jun 22, 2021 · Apt 2R
Closed — Violation dismissed - ANon-hazardous
Provide a peep hole in entrance door of the dwelling unit so located so as to permit a person inside the dwelling to view any person outside entrance door , located at apt 2r, 2nd story, apartment at south
Jun 22, 2021 · Apt 2R
Closed — Violation dismissed - BHazardous
Properly repair with similar material the broken or defective wood floor in the kitchen located at apt 2r, 2nd story, apartment at south
Jun 22, 2021 · Apt 2R
Open — Nov sent out - CImmediately hazardous
Properly secure the loose lower sash window in the kitchen located at apt 2r, 2nd story, apartment at south
Jun 22, 2021 · Apt 2R
Closed — Violation closed - CImmediately hazardous
Properly secure the loose light fixture at the ceiling in the 2nd room from north located at apt 2r, 2nd story, apartment at south
Jun 22, 2021 · Apt 2R
Closed — Violation closed - CImmediately hazardous
Arrange and make self-closing the doors leading to cellar at public hall, 1st story
May 9, 2021
Closed — Violation closed - ANon-hazardous
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.
Apr 9, 2021
Closed — Violation dismissed - BHazardous
And dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes consisting of household items on the 2nd story balcony, east exterior wall at fire escape
Feb 24, 2020
Closed — Violation dismissed - BHazardous
M/d law abate the nuisance consisting of household item (vanity dresser) obstructing east door, secondary means of egress in the 4th room from east located at apt 2l, 2nd story, 1st apartment from west at north
Feb 24, 2020 · Apt 2L
Closed — Violation dismissed - BHazardous
Properly repair the broken or defective warped wood floor in the kitchen located at apt 2l, 2nd story, 1st apartment from west at north
Feb 24, 2020 · Apt 2L
Open — Nov sent out - BHazardous
Repair the leaky and/or defective water supply pipe at sink- (cold side) in the kitchen located at apt 2l, 2nd story
Dec 2, 2019 · Apt 2L
Closed — Violation dismissed - CImmediately hazardous
Arrange and make self-closing the doors at east entrance located at apt 2l, 2nd story
Dec 2, 2019 · Apt 2L
Closed — Violation closed - BHazardous
Properly repair with similar material the broken or defective rotted wood base at cabinet under sink in the kitchen located at apt 2l, 2nd story
Nov 14, 2019 · Apt 2L
Closed — Violation dismissed - CImmediately hazardous
Repair the broken or defective connection at wasteline under sink in the kitchen located at apt 2l, 2nd story
Nov 14, 2019 · Apt 2L
Open — Nov sent out - CImmediately hazardous
M/d law abate the nuisance consisting of hot water exceeding 130 degrees at all fixtures located at apt 2l, 2nd story
Nov 14, 2019 · Apt 2L
Closed — Violation closed - CImmediately hazardous
Provide an adequate supply of heat from an approved central heating system, or an approved system of gas or electrical heating in good operating condition for the dwelling unit in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north
Nov 14, 2019 · Apt 2L
Closed — Violation closed - CImmediately hazardous
M/d law abate the nuisance consisting of hot water exceeding 130 degrees at all fixtures located at apt 2r, 2nd story, 1st apartment from east at south
Nov 14, 2019 · Apt 2R
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 2r, 2nd story, 1st apartment from east at south
Nov 14, 2019 · Apt 2R
Open — Not complied with
DOB building violations · 19
- Low pressure boiler boiler required
Violation issued-failure to file 2024 external low pressure inspection
Nov 14, 2025
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2023 external low pressure inspection
Sep 23, 2024
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2020 external low pressure inspection
Jun 30, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2021 external low pressure inspection
Jun 30, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2019 external low pressure inspection
Jun 20, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued-failure to file 2022 external low pressure inspection
Apr 25, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2015 inspection report
Feb 24, 2017
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2013 inspection report
Mar 3, 2015
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2012 inspection report
May 15, 2014
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2011 inspection report
Mar 1, 2013
Dob violation - active
Show 9 more ↓
- Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2010 inspection report
Dec 13, 2011
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 1, 2009
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Feb 13, 2004
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
May 4, 1998
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Sep 16, 1997
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Aug 29, 1995
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jun 1, 1994
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Aug 16, 1993
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jun 1, 1993
Dob violation - active
ECB violations · 4
- Class - 2
Failure to file required annual boiler inspection reports for low-pressure boiler 30000059317y0001 in accordance with the rules of the department. 1rcny 103-01(d)(1) requires that an annual inspection report fo
May 28, 2025 · Penalty $3,125
Active - Class - 2
Failure to maintain bldg in code compliant manner. observed in 4 sty bldg in apt#2r in bedroom opening on ceiling cover w/black plastic. thesheetrock was collapsed & new pvc 2 "piping was observed in opening on
Jul 29, 2020 · Penalty $1,562
Resolve - Class - 2
Occupancy contrary to that allowed by cofo and dept of bldgs records.partitions erected creating 2illegal rooms w. stairs.1 room created above apt 3l @ 3rd stry and 1 room created above apt 3r @1st stry.rem:dis
Oct 27, 2016
Resolve - Class - 2
Failure to maintain building in code-compliant manner. installation/maintenance per of plumbing materials/equipment per pc 102.3,27-902. observe in cell for new/altered gas line used prohibited union connection
Apr 6, 2009 · Penalty $250
Active
Complaints
- Heat/hot water
Apartment only
Oct 21, 2026 · Apt 3L
Open - Electric
Power outage
Jul 20, 2026 · Apt BLDG
Close - Unsanitary condition
Mold
Feb 23, 2026 · Apt 1L
Close - Plumbing
Water supply
Feb 19, 2026 · Apt BLDG
Close - Plumbing
Water supply
Feb 19, 2026 · Apt BLDG
Close - General
Bell/buzzer/intercom
Feb 2, 2026 · Apt 2L
Close - General
Cabinet
Feb 2, 2026 · Apt 2L
Close - Door/window
Window frame
Feb 2, 2026 · Apt 2L
Close - Door/window
Window frame
Feb 2, 2026 · Apt 2L
Close - Flooring/stairs
Floor
Feb 2, 2026 · Apt 2L
Close
Show 40 more ↓
- Electric
Lighting
Feb 2, 2026 · Apt 2L
Close - Unsanitary condition
Pests
Feb 2, 2026 · Apt 2L
Close - Door/window
Door
Feb 2, 2026 · Apt BLDG
Close - Paint/plaster
Wall
Feb 2, 2026 · Apt BLDG
Close - Safety
Fire escape
Feb 2, 2026 · Apt BLDG
Close - Unsanitary condition
Garbage/recycling storage
Feb 2, 2026 · Apt BLDG
Close - Safety
Carbon monoxide detector
Feb 2, 2026 · Apt 1R
Close - Unsanitary condition
Pests
Feb 2, 2026 · Apt 2L
Close - Door/window
Door
Feb 2, 2026 · Apt 1R
Close - General
Ventilation system
Feb 2, 2026 · Apt 1R
Close - Electric
Lighting
Feb 2, 2026 · Apt 2L
Close - Electric
Outlet/switch
Feb 2, 2026 · Apt 2L
Close - Electric
Wiring
Feb 2, 2026 · Apt 2L
Close - Flooring/stairs
Floor
Feb 2, 2026 · Apt 2L
Close - Flooring/stairs
Floor
Feb 2, 2026 · Apt 2L
Close - Safety
Smoke detector
Feb 2, 2026 · Apt 2L
Close - Door/window
Window frame
Feb 2, 2026 · Apt 2L
Close - Plumbing
Water supply
Feb 2, 2026 · Apt 2L
Close - General
Cabinet
Feb 2, 2026 · Apt 2L
Close - Paint/plaster
Ceiling
Feb 2, 2026 · Apt 2L
Close - Flooring/stairs
Floor
Feb 2, 2026 · Apt 2L
Close - Door/window
Window frame
Feb 2, 2026 · Apt 2L
Close - Plumbing
Water supply
Feb 2, 2026 · Apt 2L
Close - Door/window
Door
Feb 2, 2026 · Apt 2L
Close - Plumbing
Bathtub/shower
Feb 2, 2026 · Apt 2L
Close - Plumbing
Toilet
Feb 2, 2026 · Apt 2L
Close - Safety
Carbon monoxide detector
Feb 2, 2026 · Apt 2L
Close - Flooring/stairs
Floor
Feb 2, 2026 · Apt 2L
Close - Safety
Smoke detector
Feb 2, 2026 · Apt 1R
Close - Heat/hot water
Apartment only
Jan 30, 2025 · Apt 1R
Close - Water leak
Heavy flow
Dec 20, 2024 · Apt 1L
Close - Water leak
Damp spot
Dec 20, 2024 · Apt 1L
Close - Unsanitary condition
Mold
Dec 20, 2024 · Apt 1L
Close - Unsanitary condition
Mold
Dec 20, 2024 · Apt 1L
Close - Water leak
Damp spot
Dec 20, 2024 · Apt 1L
Close - Water leak
Heavy flow
Dec 20, 2024 · Apt 1L
Close - Electric
Lighting
Jun 26, 2024 · Apt 3L
Close - Electric
Power outage
Jun 26, 2024 · Apt 3L
Close - Appliance
Refrigerator
Mar 12, 2024 · Apt 3L
Close - Flooring/stairs
Floor
Oct 9, 2023 · Apt 2L
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C2)
- Year built
- 1931
- Floors
- 3
- Residential units
- 6
- Building area
- 4,275 ft²
- Lot area
- 2,500 ft²
- Zoning
- R6
- Community board
- 304
- Council district
- 34
- Block / lot
- 3187 / 6
- Assessed value
- $529,200
- Landmark / historic district
- No
HPD registration #336256, last renewed Aug 4, 2025.
Questions about 223 Knickerbocker Avenue
Who owns 223 Knickerbocker Avenue?
The owner of record in NYC Department of City Planning PLUTO data is 223 Knickerbocker LLC.
Does 223 Knickerbocker Avenue have violations?
Yes. NYC HPD has recorded 205 housing violations at this property.
Is 223 Knickerbocker Avenue rent stabilized?
NYC Department of Finance tax bills listed 3 rent-stabilized units here in 2024 (about 50% of its 6 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.
When was 223 Knickerbocker Avenue built?
City records list 1931 as the year it was built.
How many apartments are in 223 Knickerbocker Avenue?
It has 6 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.