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843 Knickerbocker Avenue

Brooklyn, NY 11207BBL 3-03425-0003Map

Owner of record: Rojas, Nelo

843 Knickerbocker Avenue is a walk-up apartment building built in 1906 in Brooklyn, 11207. It has 6 residential units across 3 floors. The owner of record is Rojas, Nelo. HPD has recorded 21 housing violations here, most recently on May 5, 2026. 7 of the 21 most recent violations are still open.

HPD violations
21
DOB violations
23
ECB violations
0
HPD complaints
8

What to know

Concern
1 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

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 · 21

  • 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
  • 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 18, 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
  • 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 17, 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.

    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 7, 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.

    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
  • 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
Show 11 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.

    Oct 30, 2019

    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 18, 2018

    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 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.

    Feb 23, 2015

    Closed — Violation dismissed
  • B

    Abate the nuisance consisting of vermin mice in the entire apartment located at apt 3r, 3rd story, 1st apartment from east at south

    Jan 22, 2008 · Apt 3R

    Open — Nov sent out
  • B

    Repair or replace the smoke detector missing in the entire apartment located at apt 3r, 3rd story, 1st apartment from east at south

    Jan 22, 2008 · Apt 3R

    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 3r, 3rd story, 1st apartment from east at south

    Jan 22, 2008 · Apt 3R

    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) west wall in the 2nd room from east located at apt 3r, 3rd story, 1st apartment from east at south

    Jan 22, 2008 · Apt 3R

    Open — Nov sent out
  • A

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

    Jan 22, 2008 · Apt 3R

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the bathroom located at apt 3r, 3rd story, 1st apartment from east at south

    Jan 22, 2008 · Apt 3R

    Open — Nov sent out

DOB building violations · 23

  • 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 2014 inspection report

    Oct 1, 2015

    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
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2010 inspection report

    Dec 13, 2011

    Dob violation - active
Show 13 more ↓
  • Low pressure boiler boiler required

    Lblvio-low pressure boiler boiler required

    Dec 31, 2009

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 3, 2008

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 19, 2003

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 26, 2002

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 27, 2001

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 16, 1999

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    May 4, 1998

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Sep 16, 1997

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 10, 1997

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Aug 29, 1995

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jun 1, 1994

    Dob violation - dismissed
  • 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 - dismissed

ECB violations · 0

No ECB violations on record

Complaints

  • Plumbing

    Water supply

    Nov 22, 2013 · Apt 1L

    Close
  • Heating

    Heat related

    Jan 14, 2008 · Apt 3R

    Close
  • Paint/plaster

    Wall

    Jan 14, 2008 · Apt 3R

    Close
  • Heating

    Heat related

    Jan 8, 2008 · Apt 3R

    Close
  • Paint/plaster

    Wall

    Jan 8, 2008 · Apt 3R

    Close
  • Paint/plaster

    Wall

    Jan 8, 2008 · Apt 3R

    Close
  • Paint/plaster

    Wall

    Jan 8, 2008 · Apt 3R

    Close
  • Nonconst

    Vermin

    Jan 8, 2008 · 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
Walk-up apartment building (C2)
Year built
1906
Floors
3
Residential units
6
Building area
4,875 ft²
Lot area
2,500 ft²
Zoning
R6
Community board
304
Council district
37
Block / lot
3425 / 3
Assessed value
$536,850
Landmark / historic district
No

HPD registration #350685, last renewed Nov 25, 2025.

Questions about 843 Knickerbocker Avenue

Who owns 843 Knickerbocker Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Rojas, Nelo.

Does 843 Knickerbocker Avenue have violations?

Yes. NYC HPD has recorded 21 housing violations at this property.

Is 843 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 843 Knickerbocker Avenue built?

City records list 1906 as the year it was built.

How many apartments are in 843 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.