728 Knickerbocker Avenue
Brooklyn, NY 11221BBL 3-03391-0037Map
Owner of record: Arden Hill LLC
728 Knickerbocker Avenue is a mixed residential and retail building built in 1910 in Brooklyn, 11221. It has 5 residential units across 3 floors. The owner of record is Arden Hill LLC. HPD has recorded 40 housing violations here, most recently on May 5, 2026.
- HPD violations
- 40
- DOB violations
- 19
- ECB violations
- 5
- HPD complaints
- 84
What to know
No open immediately-hazardous violations among recent records.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 40
- ANon-hazardous
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 - ANon-hazardous
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 - IInformation / order
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 - ANon-hazardous
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 - IInformation / order
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 - IInformation / order
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 - IInformation / order
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 - IInformation / order
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 - IInformation / order
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 9, 2015
Closed — Violation dismissed - IInformation / order
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
Show 30 more ↓
- BHazardous
Properly repair the broken or defective radiator at north wall in the 2nd room from north located at apt 1l, 1st story, 1st apartment from south at west
Mar 3, 2009 · Apt 1L
Closed — Violation dismissed - BHazardous
Properly repair the broken or defective radiator at north wall in the 1st room from north located at apt 1l, 1st story, 1st apartment from south at west
Mar 3, 2009 · Apt 1L
Closed — Violation dismissed - BHazardous
Replace with new the missing radiator shut off valve wheel at north wall in the 1st room from north located at apt 1l, 1st story, 1st apartment from south at west
Mar 3, 2009 · Apt 1L
Closed — Violation dismissed - BHazardous
Trace and repair the source and abate the nuisance consisting of mold ... at north wall aprox. 2 sq.ft. in the foyer located at apt 1l, 1st story, 1st apartment from south at west
Mar 3, 2009 · Apt 1L
Closed — Violation closed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 1st room from east located at apt 1l, 1st story, 1st apartment from south at west
Mar 3, 2009 · Apt 1L
Closed — Violation closed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the bathroom located at apt 1l, 1st story, 1st apartment from south at west
Mar 3, 2009 · Apt 1L
Closed — Violation closed - CImmediately hazardous
Replace with new the missing glass pane, lower sash at window in the 2nd bathroom from north at west located at apt 1l, 1st story, apartment at south
Apr 28, 2007 · Apt 1L
Closed — Violation dismissed - BHazardous
Repair or replace the smoke detector (defective) located at apt 1l, 1st story, apartment at south
Apr 28, 2007 · Apt 1L
Closed — Violation closed - ANon-hazardous
Paint with light colored paint to the satisfaction of this department ; entire ceiling in the 1st bathroom from north at west located at apt 1l, 1st story, apartment at south
Apr 28, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Replace with new the missing glass pane at building entrance door
Apr 28, 2007
Closed — Violation closed - CImmediately hazardous
Repair the broken or defective connection waste line at sink in the kitchen located at apt 1l, 1st story, apartment at south
Apr 28, 2007 · Apt 1L
Closed — Violation closed - ANon-hazardous
Paint with light colored paint to the satisfaction of this department ; ceiling in the 2nd bathroom from north at west located at apt 1l, 1st story, apartment at south
Apr 28, 2007 · Apt 1L
Closed — Violation dismissed - BHazardous
Abate the nuisance consisting of vermin (mice) in the entire apartment located at apt 1l, 1st story, apartment at south
Apr 28, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Abate the nuisance consisting of vermin (roaches) in the entire apartment located at apt 1l, 1st story, apartment at south
Apr 28, 2007 · Apt 1L
Closed — Violation closed - BHazardous
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 1l, 1st story, apartment at south
Apr 28, 2007 · Apt 1L
Closed — Violation closed - CImmediately hazardous
M/d law abate the nuisance consisting of concrete block wall erected at rear yard blocking egress from rear fire escape
Apr 28, 2007
Closed — Violation closed - CImmediately hazardous
Trace and repair the source and abate the nuisance consisting of mold ... at ceiling in the bathroom located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Repair the leaky and/or defective faucets at bathtub in the bathroom located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Provide adequate supply of hot water for the fixtures at washbasin in the bathroom located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - CImmediately hazardous
Provide adequate supply of cold water for the fixtures at washbasin and watercloset in the bathroom located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Repair or replace the smoke detector missing in the entire apartment located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 1st room from east located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
M/d law abate the nuisance consisting of evidence of water leak at ceiling in the 4th room from east located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 4th room from east located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Abate the nuisance consisting of vermin mice in the entire apartment located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - BHazardous
Abate the nuisance consisting of vermin roaches in the entire apartment located at apt 1l, 1st story
Mar 29, 2007 · Apt 1L
Closed — Violation closed - ANon-hazardous
Replace with new the broken or defective refrigerator door gasket in the kitchen located at apt 1l, 1st story
May 15, 2006 · Apt 1L
Closed — Violation closed - ANon-hazardous
Reset, so as to secure a proper and tight connection, the water closet bowl - in the bathroom located at apt 1l, 1st story, 1st apartment from east at south
May 15, 2006 · Apt 1L
Closed — Violation closed - BHazardous
Properly repair the broken or defective ceiling light fixture in the bathroom located at apt 1, 1st story, apartment at west
Dec 17, 2003 · Apt 1
Closed — Violation closed
DOB building violations · 19
- Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jul 3, 2013
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jul 3, 2013
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 - 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 1, 2009
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 3, 2008
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 19, 2007
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 6, 2006
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Feb 13, 2004
Dob violation - active
Show 9 more ↓
- Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Feb 27, 2001
Dob violation - active - 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 - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Sep 16, 1997
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
Aug 29, 1995
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 · 5
- Class - 1
Gas being supplied to bldg w/o inspection or test by dob. gas being supplied to new heating units w/no inspections, tests or gas authorization from the dob. remedy: file and perform required inspection & tests.
Apr 8, 2013 · Penalty $1,000
Resolve - Class - 2
Failure to maintain bldg in code-compliant manner re: installation of plumbing equipment installed in apt 3l their is a gas heater installedin a bedroom. as per nyc fuel gas code section 303, appliance location
Apr 8, 2013 · Penalty $500
Resolve - Class - 1
Work w/o a permit work noted: inside top flr apts 3l & 3r heating units were installed in front & rear of top flr. w/no dob permits filed. heating units were connected using 1/2" & 3/4 gas pipe. remedy: obtain
Apr 8, 2013
Resolve - Class - 2
B254,50,50a. 50-unused oil tank not legally abandoned; 50a-boiler re-moved w/o capint pipes and caping sires, and closing wire boxes.
Apr 8, 2013
Resolve - Hazardous
Occupancy contrary to that allowed by bldg. dept. records. partitions erected in cellar to create two (2) separate rooms plus toilet room shower installed in kitchen area with kitchen appliances (no gas stove)
Dec 10, 1999 · Penalty $800
Resolve
Complaints
- Water leak
Slow leak
Aug 7, 2026 · Apt 1L
Close - Electric
Lighting
Nov 22, 2025 · Apt 1L
Close - Water leak
Heavy flow
Nov 22, 2025 · Apt 1L
Close - Unsanitary condition
Pests
Oct 9, 2025 · Apt 1L
Close - Electric
Outlet/switch
Jun 23, 2015 · Apt 3R
Close - Plumbing
Water-leaks
Feb 19, 2009 · Apt 1L
Close - Plumbing
Toilet
Feb 19, 2009 · Apt 1L
Close - Plumbing
Water-leaks
Feb 19, 2009 · Apt 1L
Close - Paint/plaster
Ceiling
Feb 19, 2009 · Apt 1L
Close - General
Mold
Feb 19, 2009 · Apt 1L
Close
Show 40 more ↓
- Nonconst
Vermin
Mar 25, 2007 · Apt 1L
Close - Paint/plaster
Ceiling
Mar 25, 2007 · Apt 1L
Close - Heating
Heat related
Mar 25, 2007 · Apt 1L
Close - Plumbing
Water-leaks
Mar 23, 2007 · Apt 1L
Close - Paint/plaster
Wall
Mar 23, 2007 · Apt 1L
Close - Nonconst
Vermin
Mar 23, 2007 · Apt 1L
Close - Nonconst
Vermin
Mar 23, 2007 · Apt 1L
Close - Nonconst
Vermin
Mar 23, 2007 · Apt 1L
Close - General
Mold
Mar 23, 2007 · Apt 1L
Close - Paint/plaster
Wall
Feb 26, 2007 · Apt 1L
Close - Nonconst
Rubbish
Feb 26, 2007 · Apt 1L
Close - Nonconst
Vermin
Feb 26, 2007 · Apt 1L
Close - Nonconst
Vermin
Feb 26, 2007 · Apt 1L
Close - Nonconst
Vermin
Feb 26, 2007 · Apt 1L
Close - Heating
Heat related
Feb 26, 2007 · Apt 1L
Close - Plumbing
Water-leaks
Feb 26, 2007 · Apt 1L
Close - General
Mold
Feb 26, 2007 · Apt 1L
Close - Plumbing
Bathtub/shower
Feb 26, 2007 · Apt 1L
Close - Plumbing
Toilet
May 8, 2006 · Apt 1L
Close - Electric
Electric-supply
May 8, 2006 · Apt 1L
Close - Appliance
Refrigerator
May 8, 2006 · Apt 1L
Close - Appliance
Electric/gas range
May 8, 2006 · Apt 1L
Close - General
Windows
May 8, 2006 · Apt 1L
Close - Plumbing
Basin/sink
May 8, 2006 · Apt 1L
Close - Nonconst
Rubbish
May 8, 2006 · Apt 1L
Close - Plumbing
Basin/sink
May 8, 2006 · Apt 1L
Close - Plumbing
Water-leaks
May 8, 2006 · Apt 1L
Close - Nonconst
Vermin
May 8, 2006 · Apt 1L
Close - Plumbing
Water-leaks
Nov 28, 2005 · Apt 1L
Close - Plumbing
Toilet
Nov 28, 2005 · Apt 1L
Close - Plumbing
Water supply
Nov 28, 2005 · Apt 1L
Close - Plumbing
Shower-stall
Nov 28, 2005 · Apt 1L
Close - Paint/plaster
Ceiling
Nov 28, 2005 · Apt 1L
Close - Plumbing
Water-leaks
Nov 28, 2005 · Apt 1L
Close - Plumbing
Water-leaks
Nov 28, 2005 · Apt 1L
Close - Plumbing
Water-leaks
Nov 28, 2005 · Apt 1L
Close - Nonconst
Vermin
Nov 28, 2005 · Apt 1L
Close - Nonconst
Vermin
Nov 28, 2005 · Apt 1L
Close - Nonconst
Vermin
Nov 28, 2005 · Apt 1L
Close - Plumbing
Basin/sink
Nov 28, 2005 · Apt 1L
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Mixed residential and retail building (S5)
- Year built
- 1910
- Floors
- 3
- Residential units
- 5
- Building area
- 5,850 ft²
- Lot area
- 2,600 ft²
- Zoning
- R6
- Community board
- 304
- Council district
- 37
- Block / lot
- 3391 / 37
- Assessed value
- $570,600
- Landmark / historic district
- No
HPD registration #304306, last renewed Sep 16, 2025.
Questions about 728 Knickerbocker Avenue
Who owns 728 Knickerbocker Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Arden Hill LLC.
Does 728 Knickerbocker Avenue have violations?
Yes. NYC HPD has recorded 40 housing violations at this property.
Is 728 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 728 Knickerbocker Avenue built?
City records list 1910 as the year it was built.
How many apartments are in 728 Knickerbocker Avenue?
It has 5 residential units and 6 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.