ByTenantsByTenants home

306 Jefferson Street, Brooklyn, NY 11237

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

1 open violation, none immediately hazardous.

Tenant reviews
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Open violations
11
Public record
Updated todayFrom the city’s own data (, 311, the courts), refreshed nightly.

Violations issued each year

Violations issued each year
YearHazardousNon-hazardous
202200
202330
202400
202510
2026 so far00

Plus 47 violations from 1994 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 2
  • Doors and windows 1
Open per apartment
0.1 (1 open across 8 apartments)
Inspector last found a problem
29 Sept 2025 (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.

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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

Last winter (2025–26), the city received heat or hot-water complaints about this building on 1 day.

WinterDaysComplaintsViolations
2025–26110

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

This 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 violation

Hazardous1 open

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

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

    Issued 29 Sept 2025Notice sent out 30 Sept 2025§ 27-2005

50 closed violations, plus 15 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.

  • Replace or repair the self-closing doors that is missing or defective leading to the basement at public hall, 1st story

    Issued 2 Jul 2023Violation closed 22 Nov 2023Fire and safety equipment§ 27-2005 +3

  • Properly repair or replace the broken or defective locking assembly at door in the entrance, 2nd story at north

    Issued 2 Jul 2023Violation closed 15 Sept 2023Doors and windows§ 27-2005

  • Remove all encumbrances consisting of multiple bicycle at public hall, 1st story

    Issued 2 Jul 2023Violation closed 15 Sept 2023Fire and safety equipment§ 27-2005 +1

  • Repair the broken or defective plastered surfaces and paint in a uniform color the east wall in the 1st room from east at north, 2nd story at north

    Issued 13 Nov 2021Violation closed 15 Sept 2023Walls and ceilings§ 27-2005

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

    Issued 13 Nov 2021Violation closed 15 Sept 2023Walls and ceilings§ 27-2013

  • Properly repair the source and abate the evidence of a water leak at east wall in the 1st room from east at north, 2nd story at north

    Issued 13 Nov 2021Violation closed 15 Sept 2023Leaks and plumbing§ 27-2026

  • Trace and repair the source and abate the visible mold condition... approximately 6 sq.ft at window frame from north at east wall, east wall in the 1st room from east at north, 2nd story at north original violation 14679008 issued 13-nov-21 has been upgraded to class b per administrative code §27-2017.3a(3)(a) or (b).

    Issued 13 Nov 2021Violation will be reinspected 11 Sept 2023Mold and damp§ 27-2017.3

  • Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the foyer, the 3rd room from east, 2nd story at north

    Issued 13 Nov 2021Violation closed 4 Jul 2023Walls and ceilings§ 27-2013

  • 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 = 3; wg to replace = 0; wg to repair = 0; in the entire apartment, 2nd story at north

    Issued 13 Nov 2021Violation closed 30 Jun 2022Fire and safety equipment§ 27-2043.1

  • Trace and repair the source and abate the visible mold condition... approximately 6 sq.ft at 1st window frame from north at east wall, east wall in the 1st room from east at north, 2nd story at north

    Issued 13 Nov 2021Violation closed 14 Mar 2022Mold and damp§ 27-2017.3

  • Arrange and make self-closing the doors at vestibule at public hall, 1st story

    Issued 19 Feb 2019Violation dismissed 2 Jan 2022Fire and safety equipment§ 27-2005

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

    Issued 21 Mar 2018Violation dismissed 2 Jan 2022Walls and ceilings§ 27-2005

  • Properly repair the source and abate the evidence of a water leak at ceiling at public hall, 2nd story

    Issued 21 Mar 2018Violation closed 21 Feb 2019Leaks and plumbing§ 27-2026

  • Paint with light colored paint to the satisfaction of this department ceiling at public hall, 2nd story

    Issued 21 Mar 2018Violation closed 21 Feb 2019Walls and ceilings§ 27-2013

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

    Issued 21 Mar 2018Violation closed 21 Feb 2019Leaks and plumbing§ 27-2005

  • 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.. at public hall, 1st story

    Issued 3 Jul 2016Violation closed 11 Aug 2016Heat and hot water§ 27-2033

  • Repair or replace the smoke detector missing in the entire apartment, 3rd story

    Issued 3 Jul 2016Violation closed 11 Aug 2016Fire and safety equipment§ 27-2045

  • Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment, 3rd story

    Issued 3 Jul 2016Violation closed 11 Aug 2016Fire and safety equipment§ 27-2046.1

  • Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment, 2nd story

    Issued 10 Jun 2011Violation closed 11 Aug 2016Fire and safety equipment§ 27-2046.1

  • Repair or replace the smoke detector defective 1 sty east an apartment whyce., section '' ''

    Issued 24 Jun 1996Violation closed 11 Aug 2016Fire and safety equipment§ 27-2045

  • Abate the nuisance consisting of concealed leak ceiling bathroom 12 sty west an apartment, section '' ''

    Issued 7 Jun 1996Violation closed 11 Aug 2016Leaks and plumbing§ 27-2005 +1

  • Repair the broken or defective plastered surfaces and paint in a uniform color ceiling bathroom 1 sty west an apartment, section '' ''

    Issued 7 Jun 1996Violation closed 11 Aug 2016Walls and ceilings§ 27-2005

  • Properly repair with similar material the broken or defective ceramic tiles floor bathroom 1 sty west an apartment, section '' ''

    Issued 7 Jun 1996Violation closed 11 Aug 2016Floors and stairs§ 27-2005

  • Abate the nuisance consisting of vermin roaches and mice kitchen 1 sty west an apartment, section '' ''

    Issued 7 Jun 1996Violation closed 11 Aug 2016Pests§ 27-2018

  • Repair or replace the smoke detector inoperative 2 sty east an apartment warren.

    Issued 22 Nov 1995Violation closed 11 Aug 2016Fire and safety equipment§ 27-2045

  • 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 at or near mailbox 1 sty public hall.

    Issued 22 Nov 1995Violation closed 11 Aug 2016Heat and hot water§ 27-2033

  • Replace with new the missing supply valve at radiator rear room and kitchen 1 sty south an apartment, section '' ''

    Issued 27 Jun 1995Violation closed 11 Aug 2016Heat and hot water§ 27-2005

  • Abate the nuisance consisting of vermin mice & roaches 1 sty east an apartment kitchen & bathroom.

    Issued 27 Jun 1995Violation closed 11 Aug 2016Pests§ 27-2018

  • Remove the illegal fastening bolt installed at bulkhead door to roof capable of being padlock.

    Issued 23 Jun 1995Violation closed 11 Aug 2016Roof and outside the building§ 27-2005 +1

  • Abate the nuisance consisting of vermin mice thru out 3 sty an apartment

    Issued 21 Mar 1994Violation closed 11 Aug 2016Pests§ 27-2018

  • Abate the nuisance consisting of vermin roaches thru out 3 sty north an apartment, section '' ''

    Issued 26 Oct 1994Violation dismissed 4 Jul 2016Pests§ 27-2018

  • Repair or replace the smoke detector defective in the entire apartment, 2nd story

    Issued 10 Jun 2011Violation dismissed 3 May 2015Fire and safety equipment§ 27-2045

  • Abate the nuisance consisting of vermin roaches in the entire apartment, 2nd story

    Issued 3 Aug 2004Violation closed 3 May 2015Pests§ 27-2018

  • Repair or replace the smoke detector missing 2 sty west an apartment dewitt.

    Issued 29 Aug 1996Violation dismissed 3 May 2015Fire and safety equipment§ 27-2045

  • Paint with light colored paint to the satisfaction of this department ceiling walls thru out 2 sty east an apartment., section '' ''

    Issued 23 Jun 1995Violation closed 3 May 2015Walls and ceilings§ D26-12.01

  • Properly repair the broken or defective bell and intercom system at public hall, 1st story

    Issued 15 Aug 2005Violation closed 26 Apr 2015Entry, buzzer and mail§ 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 plasterboard drop ceiling bathroom 3 sty north an apartment., section '' ''

    Issued 6 Sept 1996Violation closed 26 Apr 2015Walls and ceilings§ 300

  • Repair or replace the smoke detector defective 3 sty north an apartment killbrew., section '' ''

    Issued 6 Sept 1996Violation closed 26 Apr 2015Fire and safety equipment§ 27-2045

  • Fire escape defective. replace with new the broken, defective and/or missing bolt at shoe of dropladder rear.

    Issued 27 Jun 1995Violation closed 26 Apr 2015Fire and safety equipment§ 27-2005

  • Fire escape defective. adjust the dropladder so that it will slide easily in the guide rods rear

    Issued 27 Jun 1995Violation closed 26 Apr 2015Fire and safety equipment§ 27-2005

  • Cleanse to the satisfaction of this department the floors 1 sty public hall.

    Issued 27 Jun 1995Violation closed 26 Apr 2015Floors and stairs§ 27-2011

  • Properly repair with similar material the broken or defective plasterboards cellar ceiling rear.

    Issued 27 Jun 1995Violation closed 26 Apr 2015Walls and ceilings§ D26-10.01

  • Abate the nuisance consisting of exposed electric wires at ceiling 1 & 2 rooms from front 2 sty east an apartment.

    Issued 23 Jun 1995Violation closed 26 Apr 2015Electrical§ 27-2005 +1

  • Replace with new the missing intercom system bldg

    Issued 23 Jun 1995Violation closed 26 Apr 2015Entry, buzzer and mail§ 27-2005

  • Provide a peep hole in entrance door of the dwelling unit so located so as to permit a person inside the dwelling to view any person outside entrance door 3 sty east an apartment, section '' ''

    Issued 14 Jun 1994Violation closed 26 Apr 2015Doors and windows§ 27-2041

  • Replace with new the missing electric wall outlet plate kitchen 3 sty an apartment

    Issued 21 Mar 1994Violation closed 26 Apr 2015Electrical§ 27-2005

  • Provide adequate lighting at or near the outside of the front entranceway of the building and keep same burning from sunset every day to sunrise on the day following 100 watts night inspection

    Issued 21 Mar 1994Violation closed 26 Apr 2015Electrical§ 27-2040

  • Properly repair with similar material the broken or defective wood floor kitchen 3 sty an apartment

    Issued 21 Mar 1994Violation closed 26 Apr 2015Floors and stairs§ 27-2005

  • Replace with new the missing door bathroom 3 sty south an apartment, section '' ''

    Issued 4 Mar 1994Violation closed 26 Apr 2015Doors and windows§ 27-2005

  • Replace with new the missing electrical outlet north wall kitchen 3 sty south an apartment, section '' ''

    Issued 4 Mar 1994Violation closed 26 Apr 2015Electrical§ 27-2005

66 violations on record in total, 1 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.

5 complaints in three years, 2 of them in the last twelve months.

  • Pests0 / 2
  • Garbage and cleanliness0 / 1
  • Heat and hot water1 / 1
  • Noise1 / 1

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.

  • 20171 eviction

Filings

Public filing

Building permits

No permit currently in force. 1 permit filed in the last five years.

Show 1 expired or finished

  • Plumbing

    Issued 26 Jan 2021Expired 26 Jan 2022

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 (2022 report)
  • 2023No infested units reported (2021 report)
  • 2022No infested units reported (2020 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.

  • Registered managing agent

    306 JEFFERSON APT LLC

    Public records list 306 JEFFERSON APT LLC as the registered managing agent for this address as of 26 Sept 2026. Source: HPD registration.

  • Owner of record

    306 JEFFERSON APTS LLC

    Public records list 306 JEFFERSON APTS LLC as the owner of record for this address as of 26 Sept 2026. 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 has 1 open hazardous violation on this building. Ask which apartment it concerns and what has been done since.
  2. The city recorded 2 mould violations here, most recently in 2021, 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. Ask what the deposit is, exactly what can be deducted from it, and how and when it comes back.
  5. 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 3031750019 · Block 3175, Lot 19 · Building class C1