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197 Knickerbocker Avenue

Brooklyn, NY 11237BBL 3-03175-0007Map

Owner of record: Shao, Jie Ai

197 Knickerbocker Avenue is a mixed residential and retail building built in 1931 in Brooklyn, 11237. It has 4 residential units across 3 floors. The owner of record is Shao, Jie Ai. HPD has recorded 53 housing violations here, most recently on May 5, 2026.

HPD violations
53
DOB violations
4
ECB violations
0
HPD complaints
18

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

Good
Last violation May 5, 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 · 53

  • 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.

    May 5, 2026

    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.

    Jun 10, 2025

    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 10, 2024

    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.

    Mar 23, 2023

    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.

    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.

    Apr 9, 2021

    Closed — Violation dismissed
  • B

    Provide support bracket at protruding air conditioning units, all stories at building front

    Aug 15, 2019

    Closed — Violation closed
  • C

    Arrange and make self-closing the doors at building front at public hall, 1st story

    Aug 15, 2019

    Closed — Violation dismissed
  • B

    Remove all encumbrances consisting of 1 electric motorcycle, 3 bicycles and 3 garbage bins at public hall, 1st story

    Jun 27, 2019

    Closed — Violation closed
Show 40 more ↓
  • A

    Paint with light colored paint to the satisfaction of this department the north wall in the 3rd room from east located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint metal in accordance with dept. regulation the 1st radiator from north at east wall in the 3rd room from east located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department the ceiling in the bathroom located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department the south wall in the foyer located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • 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) south wall in the foyer located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • 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) 1st radiator from north at east wall, south wall, east wall in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • 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) 1st radiator from north at east wall, north wall in the 3rd room from east located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • 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 bathroom located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint metal in accordance with dept. regulation the 1st radiator from north at east wall in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department the south wall, east wall in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Feb 5, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Post a proper notice of carbon monoxide detecting device requirements, in a form approved by the commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in a private dwelling. at public hall, 1st story

    Jan 30, 2019

    Closed — Violation closed
  • A

    Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected

    Jan 30, 2019

    Closed — Violation closed
  • A

    Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story

    Jan 30, 2019

    Closed — Violation closed
  • 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 at public hall, 1st story

    Jan 30, 2019

    Closed — Violation closed
  • C

    Post notice, in form approved by the department, stating the name and location of the person designated by the owner to have key to buildings heating system sign missing at public hall, 1st story

    Jan 30, 2019

    Closed — Violation closed
  • B

    Replace with new the missing cover at electrical outlet, west wall in the bathroom located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box sign missing at public hall, 1st story

    Jan 30, 2019

    Closed — Violation closed
  • A

    § 300 m/d law file plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration wood structure with wood ladder erected above the 3rd room from east creating additional room located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation dismissed
  • B

    Properly repair the broken or defective electrical light fixture at ceiling in the 3rd room from east located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • B

    Arrange and make self-closing the doors in the entrance located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department the north wall, south wall, east wall in the 3rd room from east located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint metal in accordance with dept. regulation the 1st radiator from north at east wall in the 3rd room from east located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department the north wall, south wall in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • C

    Remove the illegal double cylinder key operated locking device at door / gate installed at interior of entrance door located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • C

    M/d law abate the nuisance consisting of scalding hot water exceeding the maximum of 130 f at sink in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • B

    M/d law abate the nuisance consisting of padlockable slidebolt installed at rear egress door leading to rear east yard in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • B

    Properly repair with similar material the broken or defective wood base cabinet at sink in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • 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) 1st radiator from north at east wall, north wall, south wall, east wall in the 3rd room from east located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • 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) 1st radiator from north at east wall, north wall, south wall in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • B

    Replace with new the missing covers at electrical outlets, east wall (total of 2) in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • B

    Replace with new the missing covers at electrical outlets on north and south walls in the 3rd room from east located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • B

    Repair or replace the carbon monoxide detecting device(s). defective located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • A

    Paint metal in accordance with dept. regulation the 1st radiator from north at east wall in the kitchen located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • B

    Repair or replace the smoke detector defective located at apt 1r, 1st story, 1st apartment from north at east

    Jan 30, 2019 · Apt 1R

    Closed — Violation closed
  • B

    Properly repair the broken or defective electrical light fixture at ceiling in the 3rd room from east located at apt 1r, 1st story, apartment at east

    Jan 29, 2019 · Apt 1R

    Closed — Violation closed
  • A

    § 300 m/d law file plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration walls erected from floor to ceiling creating room for sleeping in the 3rd room from east located at apt 1r, 1st story, apartment at east

    Jan 29, 2019 · Apt 1R

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective caulking around shower stall in the bathroom located at apt 1r, 1st story, apartment at east

    Jan 29, 2019 · Apt 1R

    Closed — Violation closed
  • C

    Remove the illegal double cylinder key operated locking device at door at metal gate at entrance door located at apt 1r, 1st story, apartment at east

    Jan 29, 2019 · Apt 1R

    Closed — Violation closed
  • C

    Abate the nuisance consisting of roaches in the entire apartment located at apt 1r, 1st story, apartment at east

    Jan 29, 2019 · Apt 1R

    Closed — Violation closed
  • B

    Arrange and make self-closing the doors .. in the entrance located at apt 1r, 1st story, apartment at east

    Jan 29, 2019 · Apt 1R

    Closed — Violation closed

DOB building violations · 4

  • 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 2018 external low pressure inspection

    Jun 20, 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 for failure to file annual boiler 2017 inspection report

    Jan 17, 2020

    Dob violation - dismissed

ECB violations · 0

No ECB violations on record

Complaints

  • Heat/hot water

    Apartment only

    Jan 29, 2019 · Apt 1R

    Close
  • Heat/hot water

    Apartment only

    Jan 23, 2019 · Apt 1R

    Close
  • Heat/hot water

    Apartment only

    Jan 21, 2019 · Apt 1R

    Close
  • Heat/hot water

    Apartment only

    Jan 10, 2019 · Apt 1R

    Close
  • Door/window

    Door

    Sep 16, 2015 · Apt 2L

    Close
  • Paint/plaster

    Wall

    Sep 16, 2015 · Apt 2L

    Close
  • Paint/plaster

    Ceiling

    Sep 16, 2015 · Apt 2L

    Close
  • Unsanitary condition

    Pests

    Sep 16, 2015 · Apt 2L

    Close
  • Door/window

    Door

    Sep 16, 2015 · Apt 2L

    Close
  • Plumbing

    Water supply

    Sep 16, 2015 · Apt 2L

    Close
Show 8 more ↓
  • Door/window

    Door

    Sep 16, 2015 · Apt 2L

    Close
  • Paint/plaster

    Wall

    Sep 16, 2015 · Apt 2L

    Close
  • Paint/plaster

    Ceiling

    Sep 16, 2015 · Apt 2L

    Close
  • Unsanitary condition

    Pests

    Sep 16, 2015 · Apt 2L

    Close
  • Plumbing

    Water supply

    Sep 16, 2015 · Apt 2L

    Close
  • Door/window

    Door

    Sep 16, 2015 · Apt 2L

    Close
  • Heating

    Heat related

    Feb 20, 2008 · Apt BLDG

    Close
  • Plumbing

    Radiator

    Jun 8, 2005 · Apt 3R

    Close

Sales history

No recorded sales in our data

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

Building details

Building type
Mixed residential and retail building (S4)
Year built
1931
Floors
3
Residential units
4
Building area
4,500 ft²
Lot area
2,500 ft²
Zoning
R6
Community board
304
Council district
34
Block / lot
3175 / 7
Assessed value
$499,500
Landmark / historic district
No

HPD registration #313753, last renewed Aug 28, 2025.

Questions about 197 Knickerbocker Avenue

Who owns 197 Knickerbocker Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Shao, Jie Ai.

Does 197 Knickerbocker Avenue have violations?

Yes. NYC HPD has recorded 53 housing violations at this property.

Is 197 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 197 Knickerbocker Avenue built?

City records list 1931 as the year it was built.

How many apartments are in 197 Knickerbocker Avenue?

It has 4 residential units and 5 units in total.

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