ByTenantsByTenants home

312 Jefferson Street, Brooklyn, NY 11237

Built 1931 · 4-story walk-up · 8 apartments

7 immediately hazardous violations open. 17 open in all. On the state's rent-stabilization list for 2024.

Tenant reviews
None yetLived here? Reviews open soon.
Open violations
177 · 10
Public record
Updated yesterdayFrom the city’s own data (, 311, the courts), refreshed nightly.

Violations issued each year

Violations issued each year
YearHazardousNon-hazardous
202200
202300
2024132
202500
2026 so far00

Plus 35 violations from 1995 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 8
  • Walls and ceilings 3
  • Doors and windows 2
Open per apartment
2.1 (17 open across 8 apartments)
Inspector last found a problem
1 Jul 2024 (visits that find nothing are not published)
What do these labels mean?
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-reported

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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

No heat or hot-water complaints or violations were recorded here last winter (2025–26). That is the city's record: it only holds what somebody reported.

WinterDaysComplaintsViolations
2025–26000

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 filing

The owner registered at least one rent-stabilized apartment here with the state for 2024. The list does not say which apartments, or how many.

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 violation

Immediately hazardous7 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.

  • 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, 3rd story at south

    Issued 1 Jul 2024Not complied with 10 Sept 2024Fire and safety equipment§ 27-2043.1

  • Replace or repair the self-closing doors that is missing or defective hinges in the entrance, 3rd story at south

    Issued 1 Jul 2024Invalid certification 21 Jul 2024Fire and safety equipment§ 27-2005 +3

  • Abate the nuisance consisting of hot water exceeds the maximum temperature of 130 degrees fahrenheit in the kitchen, 1st story at south

    Issued 1 Jul 2024Notice sent out 2 Jul 2024Heat and hot water§ 27-2005 +1

  • Replace or repair the self-closing doors that is missing or defective hinges on door in the entrance, 4th story at north

    Issued 1 Apr 2024First no access to re- inspect violation 1 Jul 2024Fire and safety equipment§ 27-2005 +3

  • Abate the infestation consisting of roaches in the entire apartment, 2nd story at east

    Issued 9 Nov 2021First no access to re- inspect violation 1 Jul 2024Pests§ 27-2017.4

  • Correct failure to notify occupants and/or to investigate lead-based paint hazards.

    Issued 23 Feb 2021Notice sent out 25 Feb 2021Lead paint§ 27-2056.4

  • Correct failure to provide to the department within 45 days of demand all records required to be maintained by owner pursuant to local law 1 of 2004 related to lead-based paint notices, inspections and remediation/abatement activities.

    Issued 23 Dec 2020Notice sent out 15 Feb 2021Lead paint§ 27-2056.7

Hazardous10 open

Class B. A hazardous condition: a leak, mould, a defective floor. The owner has 30 days to correct it.

  • Repair or replace the smoke detector missing in the entire apartment, 4th story at north

    Issued 1 Apr 2024First no access to re- inspect violation 1 Jul 2024Fire and safety equipment§ 27-2045

  • Repair or replace the carbon monoxide detecting device(s). missing in the entire apartment, 4th story at north

    Issued 1 Apr 2024First no access to re- inspect violation 1 Jul 2024Fire and safety equipment§ 27-2046.1

  • Replace with new the broken or defective door saddle at entrance to building, 1st story

    Issued 6 Nov 2020Not complied with 1 Jul 2024Doors and windows§ 27-2005

  • Repair or replace the carbon monoxide detecting device(s). missing in the entire apartment, 2nd story at north

    Issued 6 Nov 2020First no access to re- inspect violation 1 Jul 2024Fire and safety equipment§ 27-2046.1

  • Repair or replace the smoke detector missing in the entire apartment, 2nd story at north

    Issued 6 Nov 2020First no access to re- inspect violation 1 Jul 2024Fire and safety equipment§ 27-2045

  • Dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes household items at balcony, rear of building, east yard, at fire escape, 2nd story

    Issued 6 Nov 2020Not complied with 1 Jul 2024Fire and safety equipment§ 27-2005 +1

  • Replace with new the broken or defective door saddle in the entrance, 2nd story at north

    Issued 6 Nov 2020First no access to re- inspect violation 1 Jul 2024Doors and windows§ 27-2005

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

    Issued 18 Sept 2014Not complied with 1 Jul 2024Fire and safety equipment§ 27-2046.1

  • Repair or replace the smoke detector missing in the entire apartment, 1st story at west

    Issued 18 Sept 2014Not complied with 1 Jul 2024Fire and safety equipment§ 27-2045

  • Repair or replace the smoke detector missing, 1st story at east

    Issued 2 Aug 2011Not complied with 1 Jul 2024Fire and safety equipment§ 27-2045

33 closed violations, plus 16 closed paperwork filings

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.

  • 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 north

    Issued 1 Apr 2024Violation closed 14 Dec 2024Fire and safety equipment§ 27-2043.1

  • Properly repair the source and abate the evidence of a water leak at, ceiling, south and east walls in the kitchen, 2nd story at north

    Issued 6 Nov 2020Violation closed 29 Oct 2024Leaks and plumbing§ 27-2026

  • Properly repair with similar material the broken or defective wood floor in the 2nd room from east, 2nd story at north

    Issued 6 Nov 2020Violation closed 29 Oct 2024Floors and stairs§ 27-2005

  • Abate the nuisance consisting of slide bolt locking device behind at door to west wall preventing egress from room east -4 to fire escape in the 3rd room from east, 2nd story at north

    Issued 6 Nov 2020Violation closed 29 Oct 2024Fire and safety equipment§ 27-2005 +1

  • Repair or replace the carbon monoxide detecting device(s). missing, 1st story at east

    Issued 2 Aug 2011Violation closed 29 Oct 2024Fire and safety equipment§ 27-2046.1

  • Abate the nuisance consisting of vermin bedbugs in the entire apartment, 2nd story at east

    Issued 16 Sept 2009Violation closed 29 Oct 2024Pests§ 27-2018

  • Properly repair the broken or defective ceiling light fixture in the 1st room from north, 2nd story at east

    Issued 16 Sept 2009Violation closed 29 Oct 2024Walls and ceilings§ 27-2005

  • Replace with new the broken or defective south entrance door 2 sty west an apartment

    Issued 23 Aug 1995Violation closed 29 Oct 2024Doors and windows§ 27-2005

  • Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 1st room from east at north, 1st story at north

    Issued 1 Jul 2024Violation dismissed 14 Oct 2024Walls and ceilings§ 27-2005

  • Abate the nuisance consisting of hasp and eye capable of being padlocked at interior door in the entrance, 3rd story at south

    Issued 1 Jul 2024Violation dismissed 14 Oct 2024Doors and windows§ 27-2005 +1

  • 2011, 2012 adm code remove the accumulation of refuse and/or rubbish and maintain in a clean condition the 20 cubic yards of debris and rubbish at gas meters at basement

    Issued 1 Jul 2024Violation dismissed 14 Oct 2024Garbage and cleanliness§ 27-2010

  • 187, 231 m/d law and department rules and regulations. provide a shoe properly secured to bottom of string of dropladder at east yard at rear building at fire escape

    Issued 1 Jul 2024Violation dismissed 14 Oct 2024Fire and safety equipment§ 53

  • Dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes consisting of household articles at 3rd story balcony at 1st stack from north at east at yard at rear building at fire escape

    Issued 1 Jul 2024Violation dismissed 14 Oct 2024Fire and safety equipment§ 27-2005 +1

  • Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the 1st room from north, 4th story at north

    Issued 1 Apr 2024Violation dismissed 5 Aug 2024Walls and ceilings§ 27-2013

  • Repair the broken or defective plastered surfaces and paint in a uniform color at north wall and ceiling in the bathroom, 3rd story at south

    Issued 1 Jul 2024Violation closed 31 Jul 2024Walls and ceilings§ 27-2005

  • Properly repair or replace the broken or defective locking device on door in vestibule at public hall, 1st story

    Issued 1 Apr 2024Violation closed 1 Jul 2024Doors and windows§ 27-2005

  • Paint with light colored paint to the satisfaction of this department the ceiling at public hall, 4th story

    Issued 20 Mar 2021Violation closed 1 Jul 2024Walls and ceilings§ 27-2013

  • Repair the roof so that it will not leak above the ceiling at public hall, 4th story

    Issued 20 Mar 2021Violation closed 1 Jul 2024Leaks and plumbing§ 27-2005

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

    Issued 20 Mar 2021Violation closed 1 Jul 2024Walls and ceilings§ 27-2005

  • Properly repair with similar material the broken or defective fire retardant material at the north, east and south wall at public hall, 2nd story

    Issued 20 Mar 2021Violation closed 1 Jul 2024Walls and ceilings§ 27-2005

  • Provide missing brackets for air conditioner on 3rd and 4th story at front of building

    Issued 19 Nov 2020Violation closed 1 Jul 2024§ 27-2005

  • Provide hot water at all hot water fixtures in the entire apartment, 1st story

    Issued 18 Sept 2014Violation closed 1 Jul 2024Heat and hot water§ 27-2031

  • Properly repair with similar material the broken or defective vinyl floor tiles all stories at public hall

    Issued 30 Apr 2012Violation closed 1 Jul 2024Floors and stairs§ 27-2005

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

    Issued 6 Jun 2011Violation closed 1 Jul 2024Walls and ceilings§ 27-2013

  • Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the kitchen, the bathroom, the 1st room from north, 1st story at east

    Issued 6 Jun 2011Violation closed 1 Jul 2024Walls and ceilings§ 27-2013

  • Paint with light colored paint to the satisfaction of this department.. 1st door frame from north at east wall in the kitchen, 3rd story at west

    Issued 6 Jan 2010Violation closed 1 Jul 2024Doors and windows§ 27-2013

  • Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the bathroom, the 3rd room from north, 3rd story at west

    Issued 6 Jan 2010Violation closed 1 Jul 2024Walls and ceilings§ 27-2013

  • 2011, 2012 adm code remove the accumulation of refuse and/or rubbish and maintain in a clean condition the cellar thru out.

    Issued 1 Aug 1997Violation closed 1 Jul 2024Garbage and cleanliness§ 27-2010

  • Properly secure the loose handrail leading to bulkhead roof door at public hall, 4th story

    Issued 19 Jul 2021Violation dismissed 7 Nov 2021Roof and outside the building§ 27-2005

  • Paint with light colored paint to the satisfaction of this department the north, east and south wall at public hall, 2nd story

    Issued 20 Mar 2021Violation closed 21 Jul 2021Walls and ceilings§ 27-2013

  • Properly repair with similar material the broken or defective wood floor in the 3rd room from east, 2nd story at north

    Issued 6 Nov 2020Violation dismissed 25 Apr 2021Floors and stairs§ 27-2005

  • Trace and repair the source and abate the visible mold condition... at ( approximately 1sqft ) ceiling in the kitchen, 2nd story at north

    Issued 6 Nov 2020Violation dismissed 25 Apr 2021Mold and damp§ 27-2017.3

  • Abate the nuisance consisting of refrigerator with doors intact at public hall, 1st story

    Issued 20 Mar 2021Violation closed 22 Apr 2021Appliances§ 27-2005 +1

66 violations on record in total, 17 of them open. The count at the top of this page counts habitability violations only.

Complaints to the city

Public complaint

Complaints 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, 0 of them in the last twelve months.

  • Pests0 / 4
  • Fire and safety equipment0 / 3
  • Garbage and cleanliness0 / 2

Last twelve months / last three years. The solid part of each bar is the last twelve months.

Court records

Court record

Housing 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.

No HPD Housing Court cases on record for this building.

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 filing

Building 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.

  • 2025No infested units reported (2024 report)
Show 5 earlier reports
  • 2025No infested units reported (2023 report)
  • 2024No infested units reported (2023 report)
  • 2024No infested units reported (2022 report)
  • 2024No infested units reported (2022 report)
  • 2021No infested units reported (2019 report)

Ownership and management

Public filing

Associations 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.

  • Owner of record and managing agent

    SL SYSTEMS LLC

    Public records list SL SYSTEMS LLC as the owner of record and the registered managing agent for this address as of 20 Nov 2025. Source: HPD registration.

Wrong company, wrong date, or a change that is not reflected here? Report a correction.

What to ask at the viewing

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.

  1. The city currently has 7 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.
  2. The city recorded 1 mould violation here, most recently in 2020, all since closed. Closed means the city stopped checking, not that the damp is gone. Ask to look behind furniture and under sinks, and ask what was done the last time; a repaint is not a repair.
  3. The owner has filed a bedbug report for this building (most recently for the year ending 2025). Ask when the building was last treated, how often an exterminator comes, and whether treatment covers the whole line of apartments or only the one that complained.
  4. This building dates from 1931 and has 2 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.
  5. Ask what the deposit is, exactly what can be deducted from it, and how and when it comes back.
  6. 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

BBL 3031750022 · Block 3175, Lot 22 · Building class C1