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841 Knickerbocker Avenue

Brooklyn, NY 11207BBL 3-03425-0004Map

Owner of record: 841 Knickerbocker LLC

841 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 841 Knickerbocker LLC. HPD has recorded 75 housing violations here, most recently on May 5, 2026. 34 of the 50 most recent violations are still open. City tax records listed 6 rent-stabilized apartments here in 2024.

HPD violations
75
DOB violations
6
ECB violations
1
HPD complaints
49

What to know

Concern
6 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 · 75

  • 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.

    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
  • 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

    Aug 27, 2019

    Open — Nov sent out
  • 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

    Aug 27, 2019

    Open — Nov sent out
  • 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 notice missing at public hall, 1st story

    Aug 27, 2019

    Open — Nov sent out
Show 40 more ↓
  • 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

    Aug 27, 2019

    Open — Nov sent out
  • B

    Repair or replace the carbon monoxide detecting device(s). defective located at apt 2r, 2nd story, 1st apartment from north at east

    Dec 11, 2018 · Apt 2R

    Closed — Violation dismissed
  • B

    Repair or replace the smoke detector defective located at apt 2r, 2nd story, 1st apartment from north at east

    Dec 11, 2018 · Apt 2R

    Closed — Violation dismissed
  • B

    Remove all encumbrances consisting of house hold items at public hall, 1st story

    Nov 18, 2014

    Closed — Violation closed
  • B

    Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. at entire apartment, 1st story, apartment

    Nov 18, 2014 · Apt 1R

    Open — Nov sent out
  • B

    Repair or replace the smoke detector defective at entire apartment, 1st story, apartment

    Nov 18, 2014 · Apt 1R

    Open — Nov sent out
  • A

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

    Oct 14, 2014 · Apt 1L

    Closed — Violation closed
  • A

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

    Oct 14, 2014 · Apt 1L

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

    Oct 14, 2014 · Apt 1R

    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) north wall in the 4th room from east located at apt 1r, 1st story, 1st apartment from east at south

    Oct 14, 2014 · Apt 1R

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the 2nd room from east, the 5th room from east, the kitchen , the bathroom located at apt 1r, 1st story, 1st apartment from east at south

    Oct 14, 2014 · Apt 1R

    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 frame from east at south wall in the 2nd room from east located at apt 1l, 1st story, 1st apartment from west at north

    Oct 14, 2014 · Apt 1L

    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 frame from north at east wall in the 4th room from east located at apt 1l, 1st story, 1st apartment from west at north

    Oct 14, 2014 · Apt 1L

    Open — Nov sent out
  • A

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

    Oct 14, 2014 · Apt 1R

    Open — Nov sent out
  • A

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

    Oct 14, 2014 · Apt 1R

    Open — Nov sent out
  • B

    Fire egress defective. remove obstructing bars or unlawful gates from at least 1 window or provide approved type gate .. located at apt 1r, 1st story, 1st apartment from east at south

    Oct 14, 2014 · Apt 1R

    Closed — Violation closed
  • B

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

    Oct 14, 2014 · Apt 1R

    Open — Nov sent out
  • B

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

    Oct 14, 2014 · Apt 1R

    Open — Nov sent out
  • B

    Fire egress defective. remove obstructing bars or unlawful gates from at least 1 window or provide approved type gate .. located at apt 1l, 1st story, 1st apartment from west at north

    Oct 14, 2014 · Apt 1L

    Open — Nov sent out
  • B

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

    Oct 14, 2014 · Apt 1L

    Open — Nov sent out
  • 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 = 2; wg to replace = 0; wg to repair = 0; located at apt 1r, 1st story, 1st apartment from east at south

    Oct 14, 2014 · Apt 1R

    Closed — Violation closed
  • A

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

    Oct 14, 2014 · Apt 1L

    Open — Nov sent out
  • 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 = 0; wg to replace = 0; wg to repair = 2; in the entire apartment located at apt 1r, 1st story, 1st apartment from east at south

    Oct 7, 2014 · Apt 1R

    Closed — Violation closed
  • B

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

    Oct 7, 2014 · Apt 1R

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

    Oct 7, 2014 · Apt 1R

    Open — Nov sent out
  • 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 = 0; wg to replace = 0; wg to repair = 2; in the entire apartment located at apt 1l, 1st story, 1st apartment from west at north

    Oct 7, 2014 · Apt 1L

    Closed — Violation closed
  • B

    Abate the nuisance consisting of bedbugs located at apt 1l, 1st story, 1st apartment from west at north

    Jul 8, 2014 · Apt 1L

    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 frame from east at south wall in the 2nd room from east located at apt 1l, 1st story, 1st apartment from west at north

    Jul 8, 2014 · Apt 1L

    Open — Violation will be reinspected
  • B

    Fire egress defective. remove obstructing bars or unlawful gates from at least 1 window or provide approved type gate ,, located at apt 1l, 1st story, 1st apartment from west at north

    Jul 8, 2014 · Apt 1L

    Open — Nov sent out
  • A

    Paint metal in accordance with dept. regulation the 1st door from east at south wall in the 2nd room from east located at apt 1l, 1st story, 1st apartment from west at north

    Jul 8, 2014 · Apt 1L

    Open — Nov sent out
  • A

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

    Jul 8, 2014 · Apt 1L

    Open — Nov sent out
  • B

    Abate the nuisance consisting of roaches located at apt 1l, 1st story, 1st apartment from west at north

    Jul 8, 2014 · Apt 1L

    Open — Nov sent out
  • B

    Abate the nuisance consisting of mice located at apt 1l, 1st story, 1st apartment from west at north

    Jul 8, 2014 · Apt 1L

    Open — Nov sent out
  • B

    Properly repair with similar material the broken or defective concrete riser 5th up from bottom at stoop front entrance to building

    Jun 27, 2014

    Open — Nov sent out
  • B

    Remove the accumulation of refuse and/or rubbish and maintain in a clean condition the front entrance to building

    Jun 27, 2014

    Closed — Violation closed
  • B

    Properly repair with similar material the broken or defective the concrete tread 1st up from bottom at stoop front entrance to building

    Jun 27, 2014

    Open — Nov sent out
  • B

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

    Sep 6, 2012 · Apt 1R

    Open — Nov sent out
  • B

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

    Sep 6, 2012 · Apt 1R

    Open — Nov sent out
  • B

    Abate the nuisance consisting of bedbugs located at apt 1r, 1st story, 1st apartment from east at south

    Sep 6, 2012 · Apt 1R

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the bathroom , the kitchen , the 2nd room from east located at apt 1r, 1st story, 1st apartment from east at south

    Sep 6, 2012 · Apt 1R

    Open — Nov sent out

DOB building violations · 6

  • Low pressure boiler boiler required

    Violation issued-failure to file 2024 external low pressure inspection

    Nov 14, 2025

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 31, 2005

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 10, 1997

    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 · 1

  • Non-hazardous

    49-pipe safety or feleif valve down, install pig-tail on steam replace back flow preveter gd with gog boiler is over 350.000 btu

    Oct 16, 2000

    Resolve

Complaints

  • Heat/hot water

    Apartment only

    Jan 16, 2021 · Apt 2L

    Close
  • General

    Mailbox

    Aug 22, 2019 · Apt 3R

    Close
  • Heat/hot water

    Apartment only

    Dec 10, 2018 · Apt 2R

    Close
  • Heat/hot water

    Apartment only

    Jan 9, 2017 · Apt 2L

    Close
  • Door/window

    Door

    Oct 31, 2014 · Apt 1L

    Close
  • Unsanitary condition

    Garbage/recycling storage

    Oct 31, 2014 · Apt 1R

    Close
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 3R

    Close
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 3R

    Close
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 3R

    Close
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 1R

    Close
Show 39 more ↓
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 1R

    Close
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 1R

    Close
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 1L

    Close
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 1L

    Close
  • Unsanitary condition

    Pests

    Jul 3, 2014 · Apt 1L

    Close
  • Nonconst

    Rubbish

    Jan 27, 2014 · Apt 2FL

    Close
  • Nonconst

    Vermin

    Jan 14, 2014 · Apt 1L

    Close
  • Nonconst

    Vermin

    Jan 14, 2014 · Apt 1L

    Close
  • Nonconst

    Vermin

    Aug 28, 2012 · Apt 2R

    Close
  • Nonconst

    Vermin

    Aug 28, 2012 · Apt 1R

    Close
  • Nonconst

    Vermin

    Aug 28, 2012 · Apt 2L

    Close
  • Nonconst

    Vermin

    Aug 28, 2012 · Apt 1R

    Close
  • General

    Windows

    Mar 17, 2011 · Apt 1R

    Close
  • General

    Floor

    Mar 17, 2011 · Apt 1R

    Close
  • General

    Floor

    Mar 17, 2011 · Apt 1R

    Close
  • General

    Floor

    Mar 17, 2011 · Apt 1R

    Close
  • General

    Floor

    Mar 17, 2011 · Apt 1R

    Close
  • General

    Floor

    Mar 17, 2011 · Apt 1R

    Close
  • Nonconst

    Vermin

    Mar 17, 2011 · Apt 1R

    Close
  • Nonconst

    Vermin

    Mar 17, 2011 · Apt 1R

    Close
  • Heating

    Heat related

    Dec 8, 2009 · Apt 2L

    Close
  • Heating

    Heat related

    Dec 6, 2009 · Apt 2L

    Close
  • Nonconst

    Vermin

    Dec 6, 2009 · Apt 2L

    Close
  • Heating

    Heat related

    Dec 6, 2009 · Apt 2L

    Close
  • Nonconst

    Vermin

    Sep 4, 2009 · Apt 3L

    Close
  • Plumbing

    Water-leaks

    Sep 4, 2009 · Apt 3L

    Close
  • General

    Windows

    Sep 4, 2009 · Apt 3L

    Close
  • General

    Mold

    Sep 4, 2009 · Apt 3L

    Close
  • Nonconst

    Vermin

    Sep 4, 2009 · Apt 3L

    Close
  • Nonconst

    Vermin

    Sep 4, 2009 · Apt 3L

    Close
  • Heating

    Heat related

    Dec 5, 2006 · Apt 2L

    Close
  • Heating

    Heat related

    Mar 4, 2006 · Apt 1L

    Close
  • Heating

    Heat related

    Mar 18, 2005 · Apt 3L

    Close
  • Heating

    Heat related

    Mar 2, 2005 · Apt 3L

    Close
  • Heating

    Heat related

    Mar 1, 2005 · Apt 3L

    Close
  • Heating

    Heat related

    Mar 1, 2005 · Apt 3L

    Close
  • Heating

    Heat related

    Feb 28, 2005 · Apt 3L

    Close
  • Heating

    Heat related

    Feb 18, 2005 · Apt 3L

    Close
  • Heating

    Heat related

    Feb 17, 2005 · Apt 3L

    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 / 4
Assessed value
$430,200
Landmark / historic district
No

HPD registration #325413, last renewed Jul 27, 2026.

Questions about 841 Knickerbocker Avenue

Who owns 841 Knickerbocker Avenue?

The owner of record in NYC Department of City Planning PLUTO data is 841 Knickerbocker LLC.

Does 841 Knickerbocker Avenue have violations?

Yes. NYC HPD has recorded 75 housing violations at this property.

Is 841 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 841 Knickerbocker Avenue built?

City records list 1906 as the year it was built.

How many apartments are in 841 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.