309 Knickerbocker Avenue, Brooklyn, NY 11237
Built 1931 · 4-story walk-up with stores · 6 apartments
19 immediately hazardous violations open. 46 open in all.
- Tenant reviews
- None yetLived here? Reviews open soon.
- Open violations
- 4619 · 19 · 8
- Public record
- Updated todayFrom the city’s own data (, 311, the courts), refreshed nightly.
Violations issued each year
| Year | Hazardous | Non-hazardous |
|---|---|---|
| 2022 | 0 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 so far | 0 | 0 |
Plus 85 violations from 1988 to 2021. Counted when issued, whether open or fixed since. Paperwork left out.
See every violation- Found most often since 2022
- Fire and safety equipment 3
- Open per apartment
- 7.7 (46 open across 6 apartments)
- Inspector last found a problem
- 21 Dec 2025 (visits that find nothing are not published)
What do these labels mean?Where each of these comes from
- Tenant-reported
- A resident's firsthand account of living here, moderated before it publishes, and labelled with whether we verified they lived there.
- Official violation
- A city inspector visited and recorded a code violation. HPD's own words, and its own hazard class.
- Public complaint
- A complaint somebody made to a city system, through HPD or 311. A report, not a finding: nobody has necessarily inspected it.
- Public filing
- A permit, a registration, a bedbug report: a document the owner filed with the city because the law requires it.
- Court record
- A Housing Court case HPD brought against the owner, or an eviction a city marshal carried out. A court's record: a case is an allegation until it ends in a finding.
- Insufficient data
- Not enough current information here to infer a pattern either way.
Tenant reviews
Tenant-reportedNo tenant reviews yet. Lived here? Be the first.
Nothing above this section came from a tenant. It is all filed by the city, which means it only holds what somebody reported and an inspector wrote down, not what it is actually like to live here.
Not open yet. Reviews open when this neighbourhood does.
Heat season
Last winter (2025–26), the city received heat or hot-water complaints about this building on 2 days.
| Winter | DaysDays with complaints | Complaints | Violations |
|---|---|---|---|
| 2025–26 | 2 | 2 | 0 |
The rules, 1 October to 31 May: from 6am to 10pm, when it is below 55°F outside, the apartment must be at least 68°F; overnight it must be at least 62°F whatever the weather. Hot water must be at least 120°F all year. A tenant without heat can report it to 311.
Rent stabilization
Public filingThis building is not on the state's list of buildings with rent-stabilized apartments for 2024. That is not proof none are: an owner who did not register is missing from the list too.
Source: Rent Guidelines Board building list, from the state's 2024 registrations. To know about one apartment, a tenant can ask the state for its rent history through Ask HCR.
City violations
Official violationImmediately hazardous19 open
Class C. HPD considers the condition an immediate danger: no heat in winter, no hot water, lead paint where a child lives, a broken lock on the front door. The owner has 24 hours to correct it.
Provide a safe and adequate supply of electric service to the fixtures.. in the entire apartment, 3rd story at east
Issued 22 Dec 2020Notice sent out 23 Dec 2020Electrical§ 27-2037
Provide ready access to buildings heating system door locked at basement
Issued 22 Dec 2020Notice sent out 23 Dec 2020Heat and hot water§ 27-2033
Properly repair with similar material the broken or defective wood floor in the kitchen, 4th story at east
Issued 29 Sept 2013Notice sent out 2 Oct 2013Floors and stairs§ 27-2005
Correct the lead-based paint hazard - presumed lead paint that is peeling or on a deteriorated subsurface using work practices set forth in 28 rcny ?11-06(b)(2) west wall in the 3rd room from east, 4th story at east
Issued 29 Sept 2013Notice sent out 6 Oct 2013Lead paint§ 27-2056.6
Correct the lead-based paint hazard - presumed lead paint that is peeling or on a deteriorated subsurface using work practices set forth in 28 rcny ?11-06(b)(2) south wall in the 4th room from east, 4th story at east
Issued 29 Sept 2013Notice sent out 6 Oct 2013Lead paint§ 27-2056.6
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; in the entire apartment, 4th story at east
Issued 23 Feb 2013First no access to re- inspect violation 7 Sept 2013Fire and safety equipment§ 27-2043.1
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 = 5; in the entire apartment, 4th story at north
Issued 6 Jun 2012First no access to re- inspect violation 5 Oct 2013Fire and safety equipment§ 27-2043.1
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 missing at public hall, 1st story
Issued 7 May 2012Not complied with 29 Sept 2013Heat and hot water§ 27-2033
Abate the nuisance consisting of 2 i beams installed at rear extension roof obstructing 2nd means of egress from fire escape to drop ladder
Issued 30 Mar 2012Not complied with 29 Sept 2013Fire and safety equipment§ 27-2005 +1
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 window frame from west at north wall in the bathroom, 4th story at north
Issued 24 Oct 2008Defect letter issued 29 Sept 2013Lead paint§ 27-2056.6
Show all 19Show fewer
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) baseboard at east wall, west wall, 1st window frame from west at north wall, 2nd window frame from west at north wall in the 1st room from north at west, 4th story at north
Issued 24 Oct 2008Defect letter issued 29 Sept 2013Lead paint§ 27-2056.6
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) baseboard at west wall, east wall in the 3rd room from north, 4th story at north
Issued 24 Oct 2008Defect letter issued 29 Sept 2013Lead paint§ 27-2056.6
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 kitchen, 4th story at north
Issued 24 Oct 2008Defect letter issued 29 Sept 2013Lead paint§ 27-2056.6
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) east wall, west wall in the 4th room from north, 4th story at north
Issued 24 Oct 2008Defect letter issued 29 Sept 2013Lead paint§ 27-2056.6
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 window frame from east at south wall, 1st window frame from north at east wall, 2nd window frame from north at east wall in the 1st kitchen from east, 4th story at east
Issued 18 Aug 2004First no access to re- inspect violation 5 Oct 2013Lead paint§ 27-2056.6
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 window frame from east at south wall in the 2nd room from east, 4th story at east
Issued 18 Aug 2004First no access to re- inspect violation 5 Oct 2013Lead paint§ 27-2056.6
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 south at west wall in the 3rd room from east, 4th story at east
Issued 18 Aug 2004First no access to re- inspect violation 5 Oct 2013Lead paint§ 27-2056.6
Provide ready access to buildings heating system '' at public hall
Issued 22 Jun 2004Not complied with 1 Oct 2013Heat and hot water§ 27-2033
Provide ready access to buildings heating system locked door at boiler room, cellar
Issued 12 Jan 2004Not complied with 1 Oct 2013Heat and hot water§ 27-2033
Hazardous19 open
Class B. A hazardous condition: a leak, mould, a defective floor. The owner has 30 days to correct it.
Fire escape defective. adjust the dropladder so that it will slide easily in the guide rods at building front at fire escape
Issued 21 Dec 2025Notice sent out 21 Dec 2025Fire and safety equipment§ 27-2005
Dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes consisting of flower pots and shopping cart at north exterior wall. at fire escape, 3rd story
Issued 3 Oct 2023Notice sent out 9 Oct 2023Fire and safety equipment§ 27-2005 +1
Dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes consisting of house hold items at north exterior wall. at fire escape, 3rd story
Issued 3 Oct 2023Notice sent out 9 Oct 2023Fire and safety equipment§ 27-2005 +1
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling and west wall in the bathroom, 2nd story
Issued 8 Aug 2020Notice sent out 9 Aug 2020Walls and ceilings§ 27-2005
Repair the broken or defective plastered surfaces and paint in a uniform color all walls and ceilings in the entire apartment, 3rd story at east
Issued 29 Sept 2013Notice sent out 2 Oct 2013Walls and ceilings§ 27-2005
Properly repair with similar material the broken or defective sloping wood floor in the kitchen, 4th story at east
Issued 29 Sept 2013Notice sent out 2 Oct 2013Floors and stairs§ 27-2005
Repair the broken or defective connection at the wasteline at the washbasin in the bathroom, 4th story at east
Issued 29 Sept 2013Notice sent out 30 Sept 2013§ 27-2026
Replace with new the broken or defective entrance door in the bathroom, 4th story at east
Issued 29 Sept 2013Notice sent out 30 Sept 2013Doors and windows§ 27-2005
Properly repair with similar material the broken or defective grout around bathtub in the bathroom, 4th story at east
Issued 29 Sept 2013Notice sent out 30 Sept 2013Leaks and plumbing§ 27-2005
Abate the nuisance consisting of roaches in the entire apartment, 4th story at east
Issued 29 Sept 2013Notice sent out 30 Sept 2013Pests§ 27-2018
Show all 19Show fewer
Abate the nuisance consisting of mice in the entire apartment, 4th story at east
Issued 29 Sept 2013Notice sent out 30 Sept 2013Pests§ 27-2018
Properly repair the broken or defective intercom system in the entire apartment, 4th story at east
Issued 29 Sept 2013Notice sent out 30 Sept 2013Entry, buzzer and mail§ 27-2005
Properly repair the broken or defective counter balances of the upper and lower sashes of the north and south windows in the 4th room from east, 4th story at east
Issued 29 Sept 2013Notice sent out 30 Sept 2013Doors and windows§ 27-2005
Properly repair the broken or defective lock and assembly at the door in the entrance, 3rd story at east
Issued 29 Sept 2013Notice sent out 2 Oct 2013Doors and windows§ 27-2005
Properly repair with similar material the broken or defective grout at the bathtub in the bathroom, 3rd story at east
Issued 29 Sept 2013Notice sent out 2 Oct 2013Leaks and plumbing§ 27-2005
Properly repair the broken or defective intercom system in the entire apartment, 3rd story at east
Issued 29 Sept 2013Notice sent out 2 Oct 2013Entry, buzzer and mail§ 27-2005
Properly repair with similar material the broken or defective fire retardant sheetrock ceiling at public hall, 1st story
Issued 29 Sept 2013Notice sent out 2 Oct 2013Walls and ceilings§ 27-2005
Properly repair with similar material the broken or defective wood floor at public hall, 1st story
Issued 29 Sept 2013Notice sent out 2 Oct 2013Floors and stairs§ 27-2005
Dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes consisting of house hold items being stored on all balconies at fire escape at east
Issued 7 May 2012Not complied with 29 Sept 2013Fire and safety equipment§ 27-2005 +1
Non-hazardous8 open
Class A. The least serious band: chipped plaster, a missing cabinet, a peeling ceiling in a hallway. The owner has 90 days to correct it.
Paint with light colored paint to the satisfaction of this department at ceiling at 1st story public hall
Issued 5 Oct 2013Notice sent out 6 Oct 2013Walls and ceilings§ 27-2013
Paint with light colored paint to the satisfaction of this department all walls and ceilings all stories at public hall
Issued 29 Sept 2013Notice sent out 2 Oct 2013Walls and ceilings§ 27-2013
Paint metal in accordance with dept. regulation the cornice at the roof extension building front
Issued 29 Sept 2013Notice sent out 2 Oct 2013Roof and outside the building§ 27-2005
Reset, so as to secure a proper and tight connection, the water closet bowl..... in the bathroom, 4th story at east
Issued 29 Sept 2013Notice sent out 30 Sept 2013§ 27-2026
Paint metal in accordance with dept. regulation cornice at building front
Issued 29 Sept 2013Notice sent out 2 Oct 2013Walls and ceilings§ 27-2005
Paint metal in accordance with dept. regulation all balconies, all stairs at fire escape at east
Issued 7 May 2012Not complied with 29 Sept 2013Fire and safety equipment§ 27-2005
Paint with light colored paint to the satisfaction of this department walls & ceiling 3 sty north an apartment kitchen & bathroom., section '' ''
Issued 30 Aug 1988Not complied with 29 Sept 2013Walls and ceilings§ 27-2013
And dept. rules and regulations. scrape and remove rust scales and paint with 2 coats of paint rear fire escape all parts all stys.
Issued 23 Aug 1988Not complied with 29 Sept 2013Fire and safety equipment§ D26-12.03
Orders and notices1 open
An order issued against the building as a whole rather than a condition in one apartment: a vacate order, or selection for HPD's Alternative Enforcement Program for buildings with persistent violations.
Apartments have been vacated by this department and cannot be reoccupied until so ordered after proof of compliance for apartments east 4 room at an apartment......
Issued 13 Apr 2012Not complied with 3 Oct 2013§ 27-2142
Paperwork and notices16 open
The owner failed to file something the city requires, most often the annual property registration or the annual bedbug report. Real violations, and they say something about an owner, but not a condition anyone is living in. Kept out of the count at the top of this page for that reason.
×6File 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.
6 issued 9 Apr 2021 to 5 May 2026Notice sent outPaperwork and notices
Owner failed to file a valid registration statement with the department as required by adm code §27-2097 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.
Issued 20 Nov 2025Info notice sent out 19 Nov 2025Paperwork and notices§ 27-2107
Dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor missing at public hall
Issued 9 Sept 2024Notice sent out 9 Sept 2024Paperwork and notices§ 329
Paint or post a sign indicating floors missing at all stys at public hall
Issued 7 May 2012Not complied with 29 Sept 2013Paperwork and notices§ 27-2048
Dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor missing at public hall, 1st story
Issued 7 May 2012Not complied with 29 Sept 2013Paperwork and notices§ 329
Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box missing at public hall, 1st story
Issued 7 May 2012Not complied with 29 Sept 2013Paperwork and notices§ 27-2045
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
Issued 7 May 2012Not complied with 29 Sept 2013Paperwork and notices§ 27-2104
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
Issued 7 May 2012Not complied with 29 Sept 2013Paperwork and notices§ 27-2046.1
Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box missing.
Issued 23 Aug 1988Not complied with 29 Sept 2013Paperwork and notices§ 27-2045
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.
Issued 23 Aug 1988Not complied with 29 Sept 2013Paperwork and notices§ 27-2104
Show all 16Show fewer
Dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor frame missing.
Issued 23 Aug 1988Not complied with 29 Sept 2013Paperwork and notices§ 329
42 closed violations, plus 4 closed paperwork filingsShow fewer
Closed means HPD recorded the violation as corrected, or dismissed it. Both appear here, because the difference matters and only HPD’s own status line says which it was.
Provide a safe and adequate supply of electric service to the fixtures all stories at public hall
Issued 22 Dec 2020Violation closed 18 Jan 2021Electrical§ 27-2037
Provide an adequate supply of heat for the apartment in the entire apartment, 3rd story at east
Issued 22 Dec 2020Violation closed 15 Jan 2021Heat and hot water§ 27-2029
File certification of satisfactory installation of smoke detecting device in accordance with h.p.d. rules and regulations.
Issued 23 Aug 1988Violation closed 17 Oct 2017Fire and safety equipment§ D26-20.08 +1
Fire escape defective. adjust the dropladder so that it will slide easily in the guide rods at entrnace of the building
Issued 5 Oct 2013Violation closed 24 May 2016Fire and safety equipment§ 27-2005
Paint with light colored paint to the satisfaction of this department at north wall at 2nd story public hall
Issued 5 Oct 2013Violation closed 24 May 2016Walls and ceilings§ 27-2013
Properly repair with similar material the broken or defective wood floor in the kitchen, 3rd story at east
Issued 29 Sept 2013Violation closed 24 May 2016Floors and stairs§ 27-2005
Repair the broken or defective connection wasteline of the sink in the kitchen, 3rd story at east
Issued 29 Sept 2013Violation closed 24 May 2016Leaks and plumbing§ 27-2026
Cleanse to the satisfaction of this department the all stairs and landings all stories at public hall
Issued 29 Sept 2013Violation closed 24 May 2016Floors and stairs§ 27-2011
Replace with new the missing light switch plate cover at the south wall in the 2nd room from east, 3rd story at east
Issued 29 Sept 2013Violation closed 24 May 2016Walls and ceilings§ 27-2005
Replace with new the broken or defective glass upper and lower sashes at the south window in the 1st room from east, 3rd story at east
Issued 29 Sept 2013Violation closed 24 May 2016Doors and windows§ 27-2005
Replace with new the broken or defective wood rotted base cabinet in the kitchen, 3rd story at east
Issued 29 Sept 2013Violation closed 24 May 2016Walls and ceilings§ 27-2005
Arrange and make self-closing the doors to the bulkhead at 4th sty public hall stairs to roof
Issued 7 May 2012Violation closed 28 Apr 2016Fire and safety equipment§ 27-2005 +1
Refit the metal door to the bulkhead at 4th sty public hall stairs
Issued 7 May 2012Violation closed 28 Apr 2016Doors and windows§ 27-2005
Refit door bulkhead to roof.
Issued 23 Aug 1988Violation closed 28 Apr 2016Roof and outside the building§ 27-2005
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 = 1; wg to repair = 4; in the entire apartment, 4th story at east
Issued 29 Sept 2013Violation closed 19 Nov 2013Fire and safety equipment§ 27-2043.1
Remove the illegal fastening slide bolt with eye capable of being padlocked bulkhead door to roof at public hall, 4th story
Issued 25 Aug 2012Violation closed 7 Sept 2013Roof and outside the building§ 27-2005 +1
Replace with new the missing balusters, at public hall, 3rd story
Issued 24 Dec 2010Violation closed 7 Sept 2013§ 27-2005
Properly repair the broken or defective lock on the door at the building entrance, 1st story
Issued 3 Apr 2013Violation closed 24 Jul 2013Doors and windows§ 27-2005
Replace with new the missing locking assemly at entrance door to building.
Issued 23 Feb 2013Violation closed 24 Jul 2013Doors and windows§ 27-2005
Abate the nuisance consisting of vent pipe on rear extension roof obstructing egress at drop ladder
Issued 30 Mar 2012Violation closed 24 Jul 2013Fire and safety equipment§ 27-2005 +1
Abate the nuisance consisting of ofensive odor at all stories, public hall
Issued 3 Apr 2013Violation closed 4 Jun 2013§ 27-2005 +1
2011, 2012 adm code cleanse and disinfect to the satisfaction of this department after removing the raw sewage at cellar
Issued 3 Apr 2013Violation closed 7 Apr 2013Leaks and plumbing§ 27-2010
Fire escape defective. replace with new the broken, defective and/or missing standards at 4th story balcony east fire escape front rail.
Issued 23 Feb 2013Violation closed 7 Apr 2013Fire and safety equipment§ 27-2005
Replace with new the missing balusters at 3rd story public hall
Issued 23 Feb 2013Violation closed 28 Mar 2013§ 27-2005
Remove the illegal fastening consisting of a pad lockable slide bolt installed on the bulkhead door at 4th sty public hall stairs
Issued 7 May 2012Violation closed 23 Feb 2013Doors and windows§ 27-2005 +1
Provide and maintain approved mail receptacles and directories for the persons residing in the dwelling as provided in the u.s. postal regulations. at public hall, 1st story
Issued 7 May 2012Violation closed 23 Feb 2013§ 27-2047
Paint with light colored paint to the satisfaction of this department ceiling, at public hall, 1st story
Issued 8 Apr 2012Violation closed 23 Feb 2013Walls and ceilings§ 27-2013
Properly repair with similar material the broken or defective wood floor at vestibule.
Issued 8 Apr 2012Violation closed 23 Feb 2013Floors and stairs§ 27-2005
Replace with new the missing mail-box at public hall, 1st story
Issued 4 Apr 2012Violation closed 23 Feb 2013§ 27-2005
Refit door at bulk-head to roof.
Issued 3 Apr 2012Violation dismissed 23 Feb 2013Roof and outside the building§ 27-2005
Paint with light colored paint to the satisfaction of this department the baseboard at east wall, 1st door frame from east at south wall in the 3rd room from north, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Doors and windows§ 27-2013
Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the 5th room from north, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Walls and ceilings§ 27-2013
Repair the broken or defective plastered surfaces and paint in a uniform color the north wall, east wall in the 1st room from north at west, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Walls and ceilings§ 27-2005
Repair the broken or defective plastered surfaces and paint in a uniform color the north wall in the 4th room from north, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Walls and ceilings§ 27-2005
Repair or replace the carbon monoxide detecting device(s). inoperable, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Fire and safety equipment§ 27-2046.1
Abate the nuisance consisting of vermin roaches, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Pests§ 27-2018
Repair the broken or defective plastered surfaces and paint in a uniform color the south wall in the kitchen, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Walls and ceilings§ 27-2005
Paint metal in accordance with dept. regulation the 1st door from east at south wall in the kitchen, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Doors and windows§ 27-2005
Paint metal in accordance with dept. regulation the 1st riser from south at west wall in the bathroom, 4th story at north
Issued 24 Oct 2008Violation closed 23 Feb 2013Walls and ceilings§ 27-2005
Abate the nuisance consisting of concealed water leak ceiling 2 sty west an apartment bathroom er1.
Issued 18 May 1990Violation closed 23 Feb 2013Leaks and plumbing§ 27-2005 +1
Repair the broken or defective plastered surfaces and paint in a uniform color ceiling 2 sty west an apartment bathroom er1.
Issued 18 May 1990Violation closed 23 Feb 2013Walls and ceilings§ 27-2005
File plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration ( commercial air condistioning unit installed at 1st story rear extension roof, obstructing egress to drop ladder )
Issued 3 Apr 2012Violation dismissed 8 Oct 2012Fire and safety equipment§ 300
109 violations on record in total, 63 of them open. The count at the top of this page counts habitability violations only.
Complaints to the city
Public complaintComplaints are reports made to the city. They are not confirmed findings. They come from HPD and from 311, and the same problem can appear more than once if more than one neighbour called.
9 complaints in three years, 3 of them in the last twelve months.
- Garbage and cleanliness0 / 3
- Heat and hot water2 / 2
- Mold and damp0 / 2
- Construction and illegal work1 / 1
- Leaks and plumbing0 / 1
Last twelve months / last three years. The solid part of each bar is the last twelve months.
Court records
Court recordHousing Court cases
Cases the city’s housing department (HPD) brought against the owner, usually to force repairs or restore heat. A case is an allegation; where the court recorded an outcome, it is shown.
3 cases, all closed.
Comp Supplemental Cases
Opened 28 Feb 2014
Comp Supplemental Cases
Opened 19 Apr 2013
Comprehensive
Opened 10 Aug 2012
Evictions
Residential evictions carried out by a city marshal since 2017. Most follow a case for unpaid rent, so a count here is not by itself a finding about the building or the landlord. We show how many, never which apartment.
No marshal evictions recorded at this building since 2017.
Filings
Public filingBuilding permits
No DOB permits filed for this building in the last five years.
Annual bedbug report
Every multiple dwelling in New York must file this once a year. A report of zero infested units is good news. No report is not: failing to file is itself a violation.
No bedbug report on file for this building. That usually means the owner did not file one, not that there is nothing to report.
Ownership and management
Public filingAssociations come from registration records and may be incomplete. Owners register with HPD once a year, so a change of hands can go unrecorded for a full cycle.
The most recent registration on file for this address expired 31 Aug 2025 and has not been renewed since, so it is more than a full cycle old. Whoever is named below may no longer be responsible for the building.
Registered managing agent
ALBERT KAFIF
Public records list ALBERT KAFIF as the registered managing agent for this address as of 13 Aug 2024. Source: HPD registration.
Owner of record
HARTNICK ENTERPRISES INC
Public records list HARTNICK ENTERPRISES INC as the owner of record for this address as of 13 Aug 2024. Source: HPD registration.
Wrong company, wrong date, or a change that is not reflected here? Report a correction.
What to ask at the viewing
309 Knickerbocker Avenue, Brooklyn, NY 11237
Drawn from this building’s record above. They are questions, not conclusions: the point is to find out, in the twenty minutes you get inside, what the public record cannot tell you.
- The city currently has 19 open immediately-hazardous violations on this building. Ask which apartments they concern, how many are in the one you would be renting, and when HPD re-inspects.
- This building dates from 1931 and has 10 open lead-paint violations on record. If a child under six will live here, ask what testing and remediation has been done and ask for it in writing.
- Leaks and plumbing come up on this building's record. Ask which apartments were affected and whether the cause was ever found: 0 complaints in the last twelve months.
- The building's HPD registration is out of date or names nobody we could identify. Ask who the managing agent is and get a name, a phone number and an address in writing before you sign.
- Ask what the deposit is, exactly what can be deducted from it, and how and when it comes back.
- Ask who to call when something breaks, what happens after hours and at weekends, and how long a repair normally takes.
Ask for anything that matters in writing; an email after the viewing is enough. We are not your lawyer and this is not legal advice.
Questions about this building
Yes. HPD lists 46 open housing violations: 19 immediately hazardous, 19 hazardous and 8 non-hazardous. Paperwork filings, such as a late registration, are not counted.
Since 2022, HPD inspectors have written the most violations here for fire and safety equipment (3).
On 21 Dec 2025. HPD only publishes inspections that found something, so a later visit that found nothing would not show here.
It is not on the state's list of buildings with rent-stabilized apartments for 2024. That is not proof none are: an owner who did not register is missing from the list too.
In the 2025–26 heat season the city received heat or hot-water complaints on 2 days, and HPD issued 0 heat violations.
No residential evictions by a city marshal are recorded here since 2017.
Not yet. Reviews come from people who lived here, and none has been published for this building.
BBL 3032200001 · Block 3220, Lot 1 · Building class S5
