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729 Knickerbocker Avenue

Brooklyn, NY 11221BBL 3-03392-0003Map

Owner of record: Knickerbocker One Estate LLC

729 Knickerbocker Avenue is a walk-up apartment building built in 1906 in Brooklyn, 11221. It has 8 residential units across 4 floors. The owner of record is Knickerbocker One Estate LLC. HPD has recorded 160 housing violations here, most recently on September 7, 2026. 2 of the 50 most recent violations are still open. City tax records listed 8 rent-stabilized apartments here in 2024.

HPD violations
160
DOB violations
11
ECB violations
0
HPD complaints
216

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

Watch
Last violation Sep 7, 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
8
About 100% of the building's 8 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 · 160

  • B

    Abate the nuisance consisting of pests. evidence of flies in the entire apartment located at apt 1f, 1st story, 1st apartment from east at south

    Sep 7, 2026 · Apt 1F

    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.

    May 5, 2026

    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 19, 2025

    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
  • B

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

    Jul 21, 2020 · Apt 1F

    Closed — Violation dismissed
  • B

    Fire egress defective. remove obstructing bars or unlawful gates from at least 1 window or provide approved type gate , in the entire apartment located at apt 1f, 1st story, 1st apartment from north at east

    Jul 21, 2020 · Apt 1F

    Closed — Violation dismissed
  • C

    Replace or repair the self-closing doors that is missing or defective , in the entrance located at apt 1f, 1st story, 1st apartment from north at east

    Jul 21, 2020 · Apt 1F

    Closed — Violation closed
  • B

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

    Jul 21, 2020 · Apt 1F

    Closed — Violation dismissed
Show 40 more ↓
  • C

    Properly repair the source and abate the evidence of a water leak at ceiling and west wall in the 4th room from north located at apt 1f, 1st story, 1st apartment from north at east

    Jul 21, 2020 · Apt 1F

    Closed — Violation closed
  • B

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

    Jul 21, 2020 · Apt 1F

    Closed — Violation dismissed
  • B

    And dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes household items 3rd story blacony at building front

    Jul 11, 2018

    Closed — Violation dismissed
  • B

    Replace with new the broken or defective lower glass pane at building front door

    Jul 11, 2018

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective ceramic floor tiles at public hall, 1st story

    Jul 11, 2018

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective fire retardant ceiling at public hall, 4th story

    Jul 11, 2018

    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

    Jul 11, 2018

    Closed — Violation dismissed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling and west wall in the 4th room from east located at apt 4b, 4th story, apartment at east

    Mar 14, 2018 · Apt 4B

    Closed — Violation closed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling and north wall in the bathroom located at apt 4b, 4th story, apartment at east

    Mar 14, 2018 · Apt 4B

    Closed — Violation closed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the private hallway located at apt 4b, 4th story, 1st apartment from north at east

    Mar 14, 2018 · Apt 4B

    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 at public hall

    Mar 14, 2018

    Closed — Violation dismissed
  • B

    Trace and repair the source and abate the nuisance consisting of mold ... at ceiling 1 sq.foot in the bathroom located at apt 4b, 4th story, apartment at east

    Mar 14, 2018 · Apt 4B

    Open — Invalid certification
  • C

    Fire escape defective. replace with new the broken, defective and/or missing batten at balcony building rear at west at fire escape, 4th story

    Mar 14, 2018

    Closed — Violation dismissed
  • A

    Paint or post a sign indicating floors all stories at public hall

    Mar 14, 2018

    Closed — Violation dismissed
  • B

    Remove all encumbrances consisting of bike and strolers at public hall, 1st story

    Dec 7, 2015

    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., 1st story

    Sep 24, 2015

    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. , 1st story

    Sep 24, 2015

    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 , , 1st story

    Sep 24, 2015

    Closed — Violation dismissed
  • B

    Repair the roof so that it will not leak ceiling in the 4th room from east located at apt 4b, 4th story, apartment at east

    May 6, 2015 · Apt 4B

    Closed — Violation dismissed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling and west wall in the 4th room from east located at apt 4b, 4th story, apartment at east

    Oct 7, 2013 · Apt 4B

    Closed — Violation closed
  • C

    Repair the roof so that it will not leak over the ceiling in the 4th room from east located at apt 4b, 4th story, apartment at east

    Oct 7, 2013 · Apt 4B

    Closed — Violation dismissed
  • A

    Paint with light colored paint to the satisfaction of this department the water stained east wall in the kitchen located at apt 4b, 4th story, apartment at east

    Oct 7, 2013 · Apt 4B

    Closed — Violation dismissed
  • B

    Replace or repair the self-closing doors that is missing or defective .... in the entrance located at apt 4b, 4th story, apartment at east

    Oct 7, 2013 · Apt 4B

    Closed — Violation dismissed
  • C

    Properly repair the source and abate the evidence of a water leak causing flooding at the hot water heater room at cellar front at boiler room

    May 17, 2013

    Closed — Violation closed
  • C

    Provide an adequate supply of gas to the fixtures , the main supply line for building has been shut off by utility co.

    May 17, 2013

    Closed — Violation closed
  • C

    Provide seal for all accessible openings throughout building

    Feb 15, 2012

    Closed — Violation closed
  • C

    Abate the nuisance consisting of rodents large fecile, holes and dirt mounds throughout paving, floor at cellar

    Feb 8, 2012

    Closed — Violation closed
  • C

    M/d law abate the nuisance consisting of illegal gas taps feeding hot water heater and heating unit for apt #2 at cellar

    Feb 8, 2012

    Closed — Violation closed
  • C

    M/d law abate the nuisance consisting of electric wire tap's feeding apt #2 present at east pannel, front at cellar

    Feb 8, 2012

    Closed — Violation closed
  • C

    Replace with new the broken or defective metal trap doors, at front and rear of building at cellar

    Feb 8, 2012

    Closed — Violation closed
  • C

    Provide an adequate supply of heat from an approved central heating system, or an approved system of gas or electrical heating in good operating condition for the dwelling unit in the entire apartment located at apt 2, 2nd story, 1st apartment from north at east

    Feb 8, 2012 · Apt 2

    Closed — Violation dismissed
  • C

    Cleanse and disinfect to the satisfaction of this department after removing the dog waste present throughout floor at public hall, 1st story

    Feb 1, 2012

    Closed — Violation closed
  • C

    Replace with new the broken or defective metal, fire retardent door, at entrance to building at public hall, 1st story

    Feb 1, 2012

    Closed — Violation closed
  • B

    Remove all encumbrances consisting of lumber, construction material and scattered garbage throughout floor at public hall, 1st story

    Feb 1, 2012

    Closed — Violation closed
  • I

    The premises has been selected to participate in the alternative enforcement program which may result in building-wide inspections, fees, and extensive repair work to correct violations and underlying conditions. charges for repair work done pursuant to this order, if not paid, will become liens on the property

    Jan 31, 2012

    Closed — Violation dismissed
  • C

    M/d law abate the nuisance consisting of no electricity all story at public hall

    Nov 23, 2011

    Closed — Violation closed
  • C

    Properly repair the broken or defective front entrance door to building at public hall, 1st story

    Nov 23, 2011

    Closed — Violation closed
  • C

    M/d law abate the nuisance consisting of scalding hot water(152 f) in the kitchen located at apt 2, 2nd story, 1st apartment from north at east

    Nov 23, 2011 · Apt 2

    Closed — Violation closed
  • B

    M/d law abate the nuisance consisting of extention electrical cord from apartment #2 to ceiling light fixture at public hall, 2nd story

    Nov 7, 2011

    Closed — Violation closed
  • B

    Provide adequate light of not less than 60 watts incandescent or equivalent illumination 1st and 2nd story at public hall

    Nov 7, 2011

    Closed — Violation closed

DOB building violations · 11

  • 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

    Feb 7, 2000

    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
Show 1 more ↓
  • 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

  • Unsanitary condition

    Mold

    Aug 26, 2026 · Apt 1F

    Close
  • Unsanitary condition

    Pests

    Aug 26, 2026 · Apt 1F

    Close
  • Unsanitary condition

    Pests

    Aug 26, 2026 · Apt 1F

    Close
  • Door/window

    Window frame

    Aug 26, 2026 · Apt 1F

    Close
  • Heat/hot water

    Apartment only

    Mar 21, 2022 · Apt 1F

    Close
  • Water leak

    Heavy flow

    Jul 17, 2020 · Apt 1F

    Close
  • Unsanitary condition

    Pests

    Oct 19, 2019 · Apt 1F

    Close
  • Electric

    No lighting

    Oct 19, 2019 · Apt 1F

    Close
  • Water leak

    Heavy flow

    Mar 8, 2018 · Apt 4B

    Close
  • Unsanitary condition

    Mold

    Mar 8, 2018 · Apt 4B

    Close
Show 40 more ↓
  • Safety

    Sprinkler

    Mar 8, 2018 · Apt 4B

    Close
  • Unsanitary condition

    Pests

    Jan 11, 2017 · Apt 3F

    Close
  • Unsanitary condition

    Pests

    Jan 3, 2017 · Apt 3F

    Close
  • Heat/hot water

    Entire building

    Dec 22, 2016 · Apt BLDG

    Close
  • Unsanitary condition

    Pests

    Nov 24, 2016 · Apt 3F

    Close
  • Unsanitary condition

    Pests

    Oct 18, 2016 · Apt 3F

    Close
  • Plumbing

    Water-leaks

    Jan 4, 2014 · Apt 3R

    Close
  • Plumbing

    Water-leaks

    Jan 4, 2014 · Apt 3R

    Close
  • Paint/plaster

    Wall

    Oct 2, 2013 · Apt 4B

    Close
  • Paint/plaster

    Wall

    Oct 2, 2013 · Apt 4B

    Close
  • Plumbing

    Water-leaks

    Oct 2, 2013 · Apt 4B

    Close
  • Plumbing

    Water supply

    May 16, 2013 · Apt 3R

    Close
  • Heating

    Heat related

    May 16, 2013 · Apt NA

    Close
  • Heating

    Heat related

    Nov 18, 2011 · Apt 2

    Close
  • Heating

    Heat related

    Nov 3, 2011 · Apt 2

    Close
  • Heating

    Heat related

    Nov 3, 2011 · Apt 2

    Close
  • Heating

    Heat related

    Oct 23, 2011 · Apt 2

    Close
  • Heating

    Heat related

    Oct 13, 2011 · Apt 2

    Close
  • Heating

    Heat related

    Sep 27, 2011 · Apt 2

    Close
  • General

    Locks

    Aug 12, 2011 · Apt XX

    Close
  • Plumbing

    Water supply

    Aug 2, 2011 · Apt 2

    Close
  • Heating

    Heat related

    Dec 3, 2010 · Apt 1

    Close
  • Nonconst

    Smoke detector

    Nov 16, 2010 · Apt 4

    Close
  • Paint/plaster

    Ceiling

    Nov 16, 2010 · Apt 4

    Close
  • Paint/plaster

    Ceiling

    Nov 16, 2010 · Apt 4

    Close
  • Paint/plaster

    Ceiling

    Nov 16, 2010 · Apt 4

    Close
  • Nonconst

    Smoke detector

    Nov 16, 2010 · Apt 1

    Close
  • Nonconst

    Carbon monoxide

    Nov 16, 2010 · Apt 1

    Close
  • Appliance

    Electric/gas range

    Nov 16, 2010 · Apt 1

    Close
  • Heating

    Heat related

    Nov 16, 2010 · Apt 1

    Close
  • Nonconst

    Carbon monoxide

    Nov 16, 2010 · Apt 4

    Close
  • Plumbing

    Toilet

    Nov 16, 2010 · Apt 3

    Close
  • Paint/plaster

    Ceiling

    Nov 16, 2010 · Apt 3

    Close
  • Paint/plaster

    Ceiling

    Nov 16, 2010 · Apt 3

    Close
  • Paint/plaster

    Wall

    Nov 16, 2010 · Apt 3

    Close
  • Nonconst

    Carbon monoxide

    Nov 16, 2010 · Apt 3

    Close
  • Construction

    Roof

    Nov 16, 2010 · Apt 3

    Close
  • General

    Mold

    Nov 16, 2010 · Apt 3

    Close
  • Nonconst

    Vermin

    Nov 16, 2010 · Apt 3

    Close
  • Nonconst

    Rubbish

    Nov 16, 2010 · Apt 3

    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 (C1)
Year built
1906
Floors
4
Residential units
8
Building area
7,300 ft²
Lot area
2,600 ft²
Zoning
R6
Community board
304
Council district
37
Block / lot
3392 / 3
Assessed value
$904,050
Landmark / historic district
No

HPD registration #343128, last renewed Jan 6, 2026.

Questions about 729 Knickerbocker Avenue

Who owns 729 Knickerbocker Avenue?

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

Does 729 Knickerbocker Avenue have violations?

Yes. NYC HPD has recorded 160 housing violations at this property.

Is 729 Knickerbocker Avenue rent stabilized?

NYC Department of Finance tax bills listed 8 rent-stabilized units here in 2024 (about 100% of its 8 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.

When was 729 Knickerbocker Avenue built?

City records list 1906 as the year it was built.

How many apartments are in 729 Knickerbocker Avenue?

It has 8 residential units.

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