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373 Knickerbocker Avenue

Brooklyn, NY 11237BBL 3-03258-0004Map

Owner of record: 373-379 Knickerbocker LLC

373 Knickerbocker Avenue is a walk-up apartment building built in 1931 in Brooklyn, 11237. It has 9 residential units across 4 floors. The owner of record is 373-379 Knickerbocker LLC. HPD has recorded 44 housing violations here, most recently on September 29, 2026. 34 of the 44 most recent violations are still open.

HPD violations
44
DOB violations
1
ECB violations
3
HPD complaints
13

What to know

Concern
7 open Class C

Immediately hazardous issues among recent violations are still open.

Watch
Last violation Sep 29, 2026

Date of the most recent HPD inspection that found a problem.

Good
No unpaid ECB fines

No balance due on recent ECB violations.

Rent stabilization

No rent-stabilized units in 2018–2024 tax bills

Some apartments can still be regulated. Use the rent-stabilized checker or request the rent history from HCR.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 44

  • B

    Repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules defective in the entire apartment located at apt 2c, 1st story, 1st apartment from south at west

    Sep 29, 2026 · Apt 2C

    Open — Invalid certification
  • B

    Repair, replace or provide an approved and operational smoke detecting device, installed in accordance with department of buildings rules and regulations defective in the entire apartment located at apt 2c, 1st story, 1st apartment from south at west

    Sep 29, 2026 · Apt 2C

    Open — Invalid certification
  • C

    Remove device preventing door from being self-closing stopper at fireproof door for public hall stair at 1st story

    Sep 29, 2026

    Open — Invalid certification
  • A

    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
  • I

    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
  • I

    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.

    Feb 25, 2022

    Closed — Violation dismissed
  • A

    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
  • I

    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.

    Apr 9, 2021

    Closed — Violation dismissed
  • A

    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
  • I

    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.

    Oct 30, 2019

    Closed — Violation dismissed
Show 34 more ↓
  • I

    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 24, 2017

    Closed — Violation dismissed
  • I

    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 10, 2016

    Closed — Violation dismissed
  • I

    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.

    Oct 9, 2015

    Closed — Violation dismissed
  • C

    Correct the lead-based paint hazard - paint that tested positive for lead content and that is peeling or on a deteriorated subsurface - using work practices set forth in 28 rcny ?11-06(b)(2) ceiling in the 4th room from east at south located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • C

    Correct the lead-based paint hazard - paint that tested positive for lead content and that is peeling or on a deteriorated subsurface - using work practices set forth in 28 rcny ?11-06(b)(2) baseboard at north wall, ceiling, 1st door frame from north at east wall, 1st door frame from south at west wall, south wall, east wall, west wall in the 2nd room from east located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • C

    Correct the lead-based paint hazard - paint that tested positive for lead content and that is peeling or on a deteriorated subsurface - using work practices set forth in 28 rcny ?11-06(b)(2) 1st door from east at south wall, 1st door frame from east at south wall, north wall, west wall in the kitchen located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department , 1st door frame from west at north wall, 1st door from west at north wall, 2nd window frame from south at west wall, 1st window frame from south at west wall in the 4th room from east at south located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Fire egress defective. remove obstructing bars or unlawful gates from window to fire escape or provide approved type gate , in the kitchen located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Replace or repair the self-closing doors that is missing or defective at entrance to apt. at kitchen, in the kitchen located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color , south wall in the kitchen located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department , 1st window frame from north at east wall in the kitchen located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Abate the nuisance consisting of vermin mice, in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color , west wall, south wall in the bathroom located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department , 1st door from west at north wall, 1st door frame from west at north wall in the bathroom located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department , 2nd window frame from south at west wall in the 4th room from east at north located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color , south wall, east wall, ceiling in the 4th room from east at north located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color , west wall, south wall, ceiling in the 3rd room from east located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department , 1st door frame from north at east wall in the 3rd room from east located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Properly repair with similar material the broken or defective sloping wood floor at kitchen, east 2, and eastnorth 4 rooms in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 24, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Trace and repair the source and abate the nuisance consisting of mold ... at ceiling in the 2nd bathroom from north located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 12, 2005 · Apt 2L

    Open — Nov sent out
  • C

    Remove the illegal fastening key operated double cylinder lock installed at front entrance door to building at public hall, 1st story

    Oct 12, 2005

    Open — Nov certified late
  • C

    Correct the lead-based paint hazard - presumed lead paint that is peeling or on a deteriorated subsurface using work practices set forth in 28 rcny ?11-06(b)(2) ceiling in the 3rd room from east at south located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 12, 2005 · Apt 2L

    Open — Nov sent out
  • C

    Correct the lead-based paint hazard - presumed lead paint that is peeling or on a deteriorated subsurface using work practices set forth in 28 rcny ?11-06(b)(2) east wall, west wall in the 2nd room from east at north located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 12, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 12, 2005 · Apt 2L

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department .. 1st door frame from north at east wall in the 3rd room from east at north located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 12, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Repair or replace the smoke detector missing in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 12, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Fire egress defective. remove obstructing bars or unlawful gates from window to fire escape or provide approved type gate at north kitchen and south kitchen in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 12, 2005 · Apt 2L

    Open — Nov sent out
  • B

    Properly repair the broken or defective slopping wood floor in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Oct 12, 2005 · Apt 2L

    Open — Nov sent out
  • A

    D26-10.01 adm code abate the nuisance consisting of jacks supporting beams cellar front center.

    May 16, 1983

    Open — Nov sent out
  • B

    D26-10.01 adm code replace with new the broken or defective glass skylight pub hall roof r23.

    May 16, 1983

    Open — Nov sent out
  • A

    § 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor frame missing.

    May 16, 1983

    Open — Nov sent out
  • B

    D26-10.01 adm code properly repair with similar material the broken or defective plaster cellar ceiling throughout.

    May 16, 1983

    Open — Nov sent out
  • B

    D26-19.05 adm code provide adequate light of not less than 60 watts incandescent or equivalent illumination public hall all stories.

    May 16, 1983

    Open — Nov sent out

DOB building violations · 1

  • Construction other optional

    C-construction other optional

    Aug 3, 1992

    Dob violation - dismissed

ECB violations · 3

  • Non-hazardous

    Occupancy contrary to that of c of o #242453 which indicate that the 3rd floor is to be occupied by 2 apartments. illegal occupancy noted. through the 3rd floor front windows (4) it was observed that wooden

    Mar 2, 2006 · Penalty $800

    Resolve
  • Hazardous

    Failure to maintain bldg-hazardous. defect noted: sections of flooringis sagging down at various locations at 2nd floor apartments, due to defective, missing joists, and underlayment, which creates health and s

    Oct 31, 2005 · Penalty $800

    Resolve
  • Hazardous

    Failure to maintain building- hazardous. defect noted: section of flooring sagging down at various locations at 2nd floor. apt-2r, 2l, also noted: separations between floor and walls at staircase area, and thru

    Oct 12, 2005 · Penalty $800

    Resolve

Complaints

  • Unsanitary condition

    Mold

    Sep 16, 2026 · Apt 2C

    Close
  • Water leak

    Damp spot

    Sep 16, 2026 · Apt 2C

    Close
  • Water leak

    Heavy flow

    Sep 16, 2026 · Apt 2C

    Close
  • Door/window

    Door

    Jul 7, 2025 · Apt 4B

    Close
  • Door/window

    Door

    Jul 7, 2025 · Apt 3C

    Close
  • General

    Cabinet

    Oct 21, 2023 · Apt 5

    Close
  • Electric

    Electric-supply

    Feb 15, 2006 · Apt 2L

    Close
  • General

    Mold

    Oct 11, 2005 · Apt 2L

    Close
  • Paint/plaster

    Wall

    Oct 11, 2005 · Apt 2L

    Close
  • General

    Floor

    Oct 11, 2005 · Apt 2L

    Close
Show 3 more ↓
  • General

    Floor

    Oct 7, 2005 · Apt 2L

    Close
  • General

    Mold

    Oct 7, 2005 · Apt 2L

    Close
  • General

    Floor

    Oct 7, 2005 · Apt 2L

    Close

Sales history

No recorded sales in our data

Sales come from the NYC Department of Finance rolling sales file.

Building details

Building type
Walk-up apartment building (C7)
Year built
1931
Floors
4
Residential units
9
Building area
8,893 ft²
Lot area
2,500 ft²
Zoning
C4-3
Community board
304
Council district
37
Block / lot
3258 / 4
Assessed value
$1,267,200
Landmark / historic district
No

HPD registration #336254, last renewed Aug 19, 2025.

Questions about 373 Knickerbocker Avenue

Who owns 373 Knickerbocker Avenue?

The owner of record in NYC Department of City Planning PLUTO data is 373-379 Knickerbocker LLC.

Does 373 Knickerbocker Avenue have violations?

Yes. NYC HPD has recorded 44 housing violations at this property.

Is 373 Knickerbocker Avenue rent stabilized?

No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.

When was 373 Knickerbocker Avenue built?

City records list 1931 as the year it was built.

How many apartments are in 373 Knickerbocker Avenue?

It has 9 residential units and 10 units in total.

Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.