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519 Knickerbocker Avenue

Brooklyn, NY 11237BBL 3-03326-0009Map

Owner of record: Justina Rodriguez

519 Knickerbocker Avenue is a mixed residential and retail building built in 1905 in Brooklyn, 11237. It has 6 residential units across 4 floors. The owner of record is Justina Rodriguez. HPD has recorded 63 housing violations here, most recently on May 5, 2026. 25 of the 50 most recent violations are still open. City tax records listed 6 rent-stabilized apartments here in 2024.

HPD violations
63
DOB violations
4
ECB violations
0
HPD complaints
18

What to know

Concern
2 open Class C

Immediately hazardous issues among recent violations are still open.

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

Rent-stabilized units in 2024
6
About 100% of the building's 6 apartments

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.

Stabilized units by tax-bill year

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 · 63

  • 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

    Open — Nov sent out
  • B

    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

    Jun 29, 2025 · Apt 3L

    Open — Nov sent out
  • B

    Repair or replace the smoke detector missing in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north

    Jun 29, 2025 · Apt 3L

    Open — Nov sent out
  • 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

    Open — Nov sent out
  • 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

    Open — Nov sent out
  • 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 21, 2023

    Closed — Violation dismissed
  • B

    Properly repair the broken or defective lower sash window in the 2nd room from east located at apt 3l, 3rd story, 1st apartment from west at north

    Mar 26, 2023 · Apt 3L

    Open — Invalid certification
  • B

    Properly repair the broken or defective light fixture at ceiling in the 2nd room from east located at apt 3l, 3rd story, 1st apartment from west at north

    Mar 26, 2023 · Apt 3L

    Open — Invalid certification
  • B

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

    Mar 26, 2023 · Apt 3L

    Open — Invalid certification
  • B

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

    Mar 26, 2023 · Apt 3L

    Open — Invalid certification
Show 40 more ↓
  • B

    Properly repair the broken or defective counter balance at lower sash window in the kitchen located at apt 3l, 3rd story, 1st apartment from west at north

    Mar 26, 2023 · Apt 3L

    Open — Invalid certification
  • B

    Properly repair the broken or defective light switch at east wall in the kitchen located at apt 3l, 3rd story, 1st apartment from west at north

    Mar 26, 2023 · Apt 3L

    Open — Invalid certification
  • B

    Trace and repair the source and abate the visible mold condition... approx. 15 sq ft at west wall in the 1st room from east located at apt 3l, 3rd story, 1st apartment from west at north

    Mar 26, 2023 · Apt 3L

    Open — Defect letter issued
  • C

    Properly repair the source and abate the evidence of a water leak at ceiling in the 1st room from east located at apt 3l, 3rd story, 1st apartment from west at north

    Mar 26, 2023 · Apt 3L

    Open — Nov certified late
  • C

    Replace with new the broken or defective glass at lower sash window in the 3rd room from east located at apt 3l, 3rd story, 1st apartment from west at north

    Mar 26, 2023 · Apt 3L

    Open — Nov certified late
  • 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 10, 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
  • 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
  • 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

    Nov 6, 2019

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

    Nov 6, 2019

    Closed — Violation dismissed
  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story

    Nov 6, 2019

    Closed — Violation dismissed
  • A

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

    Nov 6, 2019

    Closed — Violation dismissed
  • 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

    Nov 6, 2019

    Closed — Violation dismissed
  • C

    Install the missing or repair/replace the defective window guard(s) throughout the public areas in accordance with the specifications of the new york city health code section 24 rcny chapter 12. at public hall stairs

    Nov 6, 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

    Sep 4, 2019

    Closed — Violation dismissed
  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story

    Sep 4, 2019

    Closed — Violation dismissed
  • A

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

    Sep 4, 2019

    Closed — Violation dismissed
  • 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

    Sep 4, 2019

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

    Sep 4, 2019

    Closed — Violation dismissed
  • C

    Arrange and make self-closing the doors , in the entrance located at apt 3l, 3rd story, 1st apartment from west at north

    Sep 4, 2019 · Apt 3L

    Closed — Violation dismissed
  • B

    Repair or replace the smoke detector defective in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north

    Sep 4, 2019 · Apt 3L

    Closed — Violation dismissed
  • B

    Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north

    Sep 4, 2019 · Apt 3L

    Closed — Violation dismissed
  • C

    Install the missing or repair/replace the defective window guard(s) in accordance with the specifications of the new york city health code section 24 rcny chapter 12. wg to install = 3; wg to replace = 0; wg to repair = 0; in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north

    Sep 4, 2019 · Apt 3L

    Closed — Violation dismissed
  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story

    Jul 3, 2019

    Open — Nov sent out
  • 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

    Jul 3, 2019

    Open — Nov sent out
  • 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

    Jul 3, 2019

    Open — Nov sent out
  • A

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

    Jul 3, 2019

    Open — Nov sent out
  • 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

    Jul 3, 2019

    Open — Nov sent out
  • A

    Properly repair with similar material the broken or defective vinyl floor tiles in the 4th room from east at north located at apt 3l, 3rd story, 1st apartment from west at north

    Jul 3, 2019 · Apt 3L

    Open — Nov sent out
  • C

    Abate the infestation consisting of roaches in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north

    Jul 3, 2019 · Apt 3L

    Closed — Violation closed
  • B

    Repair or replace the smoke detector defective located at apt 3l, 3rd story, 1st apartment from west at north

    Jul 3, 2019 · Apt 3L

    Open — Nov certified late
  • B

    Repair or replace the carbon monoxide detecting device(s). defective located at apt 3l, 3rd story, 1st apartment from west at north

    Jul 3, 2019 · Apt 3L

    Open — Nov certified late
  • B

    Arrange and make self-closing the doors at west entrance located at apt 3l, 3rd story, apartment at north

    May 17, 2019 · Apt 3L

    Closed — Violation dismissed
  • 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 ..suspended acoustical ceiling in the bathroom located at apt 3l, 3rd story, apartment at north

    May 17, 2019 · Apt 3L

    Closed — Violation closed
  • B

    Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north

    Apr 10, 2019 · Apt 3L

    Open — Invalid certification
  • B

    Repair or replace the smoke detector defective in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north

    Apr 10, 2019 · Apt 3L

    Open — Invalid certification
  • C

    Abate the infestation consisting of mice in the entire apartment located at apt 3l, 3rd story, 1st apartment from west at north

    Apr 10, 2019 · Apt 3L

    Closed — Violation closed
  • A

    Properly repair with similar material the broken or defective vinyl floor tiles in the 4th room from east at south located at apt 3l, 3rd story, 1st apartment from west at north

    Feb 14, 2019 · Apt 3L

    Open — False certification
  • B

    Replace the broken or defective radiator valve in the 4th room from east at south located at apt 3l, 3rd story, 1st apartment from west at north

    Feb 14, 2019 · Apt 3L

    Closed — Violation closed

DOB building violations · 4

  • 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 2010 inspection report

    Dec 13, 2011

    Dob violation - active

ECB violations · 0

No ECB violations on record

Complaints

  • Unsanitary condition

    Mold

    Feb 27, 2023 · Apt 3L

    Close
  • Paint/plaster

    Ceiling

    Feb 27, 2023 · Apt 3L

    Close
  • Electric

    No lighting

    Feb 27, 2023 · Apt 3L

    Close
  • Safety

    Window guard broken/missing

    Nov 27, 2020 · Apt 4L

    Close
  • Unsanitary condition

    Pests

    Feb 8, 2019 · Apt 3L

    Close
  • Flooring/stairs

    Floor

    Feb 8, 2019 · Apt 3L

    Close
  • Door/window

    Door

    Feb 8, 2019 · Apt 3L

    Close
  • Electric

    Lighting

    Feb 8, 2019 · Apt 3L

    Close
  • Water leak

    Slow leak

    Feb 8, 2019 · Apt 3L

    Close
  • Unsanitary condition

    Pests

    Jan 13, 2019 · Apt 3L

    Close
Show 8 more ↓
  • Unsanitary condition

    Pests

    Sep 24, 2016 · Apt 3F

    Close
  • Heating

    Heat related

    Dec 31, 2014 · Apt NA

    Close
  • Heating

    Heat related

    Jan 4, 2014 · Apt 3R

    Close
  • Heating

    Heat related

    Dec 28, 2013 · Apt 3F

    Close
  • Heating

    Heat related

    Mar 26, 2009 · Apt 4R

    Close
  • Heating

    Heat related

    Dec 19, 2008 · Apt 4R

    Close
  • Heating

    Heat related

    Feb 5, 2007 · Apt 2L

    Close
  • Heating

    Heat related

    Nov 25, 2005 · Apt BLDG

    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 (S5)
Year built
1905
Floors
4
Residential units
6
Building area
7,500 ft²
Lot area
2,500 ft²
Zoning
R6
Community board
304
Council district
37
Block / lot
3326 / 9
Assessed value
$504,450
Landmark / historic district
No

HPD registration #349917, last renewed Aug 8, 2025.

Questions about 519 Knickerbocker Avenue

Who owns 519 Knickerbocker Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Justina Rodriguez.

Does 519 Knickerbocker Avenue have violations?

Yes. NYC HPD has recorded 63 housing violations at this property.

Is 519 Knickerbocker Avenue rent stabilized?

NYC Department of Finance tax bills listed 6 rent-stabilized units here in 2024 (about 100% of its 6 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.

When was 519 Knickerbocker Avenue built?

City records list 1905 as the year it was built.

How many apartments are in 519 Knickerbocker Avenue?

It has 6 residential units and 7 units in total.

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