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312 Jefferson Street

Brooklyn, NY 11237BBL 3-03175-0022Map

Owner of record: Sl Systems LLC

312 Jefferson Street is a walk-up apartment building built in 1931 in Brooklyn, 11237. It has 8 residential units across 4 floors. The owner of record is Sl Systems LLC. HPD has recorded 66 housing violations here, most recently on November 20, 2025. 14 of the 50 most recent violations are still open. City tax records listed 7 rent-stabilized apartments here in 2024.

HPD violations
66
DOB violations
4
ECB violations
1
HPD complaints
89

What to know

Concern
7 open Class C

Immediately hazardous issues among recent violations are still open.

Good
Last violation Nov 20, 2025

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
7
About 88% of the building's 8 apartments
Down from 8 in 2018

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 · 66

  • 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 20, 2025

    Closed — Violation dismissed
  • C

    M/d law abate the nuisance consisting of hot water exceeds the maximum temperature of 130 degrees fahrenheit in the kitchen located at apt 1r, 1st story, 1st apartment from east at south

    Jul 1, 2024 · Apt 1R

    Open — Nov sent out
  • B

    M/d law abate the nuisance consisting of hasp and eye capable of being padlocked at interior door in the entrance located at apt 3r, 3rd story, 1st apartment from east at south

    Jul 1, 2024 · Apt 3R

    Closed — Violation dismissed
  • C

    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 located at apt 3r, 3rd story, 1st apartment from east at south

    Jul 1, 2024 · Apt 3R

    Open — Not complied with
  • B

    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

    Jul 1, 2024

    Closed — Violation dismissed
  • A

    § 53, 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

    Jul 1, 2024

    Closed — Violation dismissed
  • B

    And 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

    Jul 1, 2024

    Closed — Violation dismissed
  • B

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

    Jul 1, 2024 · Apt 1L

    Closed — Violation dismissed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 3r, 3rd story, 1st apartment from east at south

    Jul 1, 2024 · Apt 3R

    Open — Invalid certification
  • C

    Repair the broken or defective plastered surfaces and paint in a uniform color at north wall and ceiling in the bathroom located at apt 3r, 3rd story, 1st apartment from east at south

    Jul 1, 2024 · Apt 3R

    Closed — Violation closed
Show 40 more ↓
  • 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 10, 2024

    Closed — Violation dismissed
  • A

    Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the 1st room from north located at apt 4l, 4th story, 2nd apartment from west at north

    Apr 1, 2024 · Apt 4L

    Closed — Violation dismissed
  • C

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

    Apr 1, 2024

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges on door in the entrance located at apt 4l, 4th story, 2nd apartment from west at north

    Apr 1, 2024 · Apt 4L

    Open — First no access to re- inspect violation
  • B

    Repair or replace the smoke detector missing in the entire apartment located at apt 4l, 4th story, 2nd apartment from west at north

    Apr 1, 2024 · Apt 4L

    Open — First no access to re- inspect violation
  • B

    Repair or replace the carbon monoxide detecting device(s). missing in the entire apartment located at apt 4l, 4th story, 2nd apartment from west at north

    Apr 1, 2024 · Apt 4L

    Open — First no access to re- inspect violation
  • C

    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 located at apt 4l, 4th story, 2nd apartment from west at north

    Apr 1, 2024 · Apt 4L

    Closed — Violation closed
  • 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 22, 2023

    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.

    Mar 23, 2023

    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 14, 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
  • C

    Abate the infestation consisting of roaches in the entire apartment located at apt 2l, 2nd story, 1st apartment from north at east

    Nov 9, 2021 · Apt 2L

    Open — First no access to re- inspect violation
  • A

    Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story

    Jul 19, 2021

    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.

    Jul 19, 2021

    Closed — Violation dismissed
  • 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

    Jul 19, 2021

    Closed — Violation dismissed
  • B

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

    Jul 19, 2021

    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

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

    Mar 20, 2021

    Closed — Violation closed
  • B

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

    Mar 20, 2021

    Closed — Violation closed
  • A

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

    Mar 20, 2021

    Closed — Violation closed
  • B

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

    Mar 20, 2021

    Closed — Violation closed
  • C

    M/d law abate the nuisance consisting of refrigerator with doors intact at public hall, 1st story

    Mar 20, 2021

    Closed — Violation closed
  • A

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

    Mar 20, 2021

    Closed — Violation closed
  • C

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

    Feb 23, 2021

    Open — Nov sent out
  • C

    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.

    Dec 23, 2020

    Open — Nov sent out
  • B

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

    Nov 19, 2020

    Closed — Violation closed
  • 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

    Nov 19, 2020

    Closed — Violation dismissed
  • A

    Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story

    Nov 19, 2020

    Closed — Violation dismissed
  • 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

    Nov 19, 2020

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective wood floor in the 2nd room from east located at apt 2l, 2nd story, 1st apartment from west at north

    Nov 6, 2020 · Apt 2L

    Closed — Violation closed
  • B

    Repair or replace the carbon monoxide detecting device(s). missing in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Nov 6, 2020 · Apt 2L

    Open — First no access to re- inspect violation
  • B

    Repair or replace the smoke detector missing in the entire apartment located at apt 2l, 2nd story, 1st apartment from west at north

    Nov 6, 2020 · Apt 2L

    Open — First no access to re- inspect violation
  • B

    M/d law 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 located at apt 2l, 2nd story, 1st apartment from west at north

    Nov 6, 2020 · Apt 2L

    Closed — Violation closed
  • B

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

    Nov 6, 2020

    Open — Not complied with
  • B

    And 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

    Nov 6, 2020

    Open — Not complied with
  • C

    Properly repair the source and abate the evidence of a water leak at, ceiling , south and east walls in the kitchen located at apt 2l, 2nd story, 1st apartment from west at north

    Nov 6, 2020 · Apt 2L

    Closed — Violation closed
  • B

    Replace with new the broken or defective door saddle in the entrance located at apt 2l, 2nd story, 1st apartment from west at north

    Nov 6, 2020 · Apt 2L

    Open — First no access to re- inspect violation
  • A

    Trace and repair the source and abate the visible mold condition... at ( approximately 1sqft ) ceiling in the kitchen located at apt 2l, 2nd story, 1st apartment from west at north

    Nov 6, 2020 · Apt 2L

    Closed — Violation dismissed
  • A

    Properly repair with similar material the broken or defective wood floor in the 3rd room from east located at apt 2l, 2nd story, 1st apartment from west at north

    Nov 6, 2020 · Apt 2L

    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.

    Oct 30, 2019

    Closed — Violation dismissed

DOB building violations · 4

  • 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

    Jun 1, 1994

    Dob violation - dismissed
  • 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 - dismissed

ECB violations · 1

  • Class - 2

    Work without a permit. premises is a four story m/d. partitions were erected throughout to create additional bedrooms in each apartment. eight apartments in total, obtain all permits

    Jul 18, 2024 · Penalty $625

    Resolve

Complaints

  • Safety

    Window guard broken/missing

    Apr 1, 2024 · Apt 4L

    Close
  • Safety

    Carbon monoxide detector

    Apr 1, 2024 · Apt 4L

    Close
  • Safety

    Smoke detector

    Apr 1, 2024 · Apt 4L

    Close
  • Electric

    Lighting

    Oct 18, 2021 · Apt 2L

    Close
  • Appliance

    Refrigerator

    Oct 18, 2021 · Apt 2L

    Close
  • Unsanitary condition

    Pests

    Oct 18, 2021 · Apt 2L

    Close
  • Heat/hot water

    Apartment only

    Nov 17, 2020 · Apt 2L

    Close
  • General

    Cabinet

    Oct 23, 2020 · Apt 2L

    Close
  • Flooring/stairs

    Floor

    Oct 23, 2020 · Apt 2L

    Close
  • Unsanitary condition

    Pests

    Sep 15, 2020 · Apt 1R

    Close
Show 40 more ↓
  • Door/window

    Door

    Jul 2, 2020 · Apt 3N

    Close
  • Unsanitary condition

    Garbage/recycling storage

    Nov 7, 2015 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Nov 7, 2015 · Apt 1R

    Close
  • Heat/hot water

    Entire building

    Sep 15, 2014 · Apt 1R

    Close
  • General

    Window guards

    Mar 7, 2014 · Apt 1R

    Close
  • General

    Mold

    Mar 7, 2014 · Apt 1R

    Close
  • Heating

    Heat related

    Nov 24, 2013 · Apt NA

    Close
  • Nonconst

    Rubbish

    Apr 27, 2012 · Apt 4L

    Close
  • General

    Floor

    Nov 7, 2011 · Apt 1R

    Close
  • General

    Mold

    Nov 7, 2011 · Apt 1R

    Close
  • Plumbing

    Basin/sink

    Nov 7, 2011 · Apt 1R

    Close
  • General

    Mold

    Nov 7, 2011 · Apt 1R

    Close
  • General

    Window guards

    May 18, 2011 · Apt 1L

    Close
  • General

    Ceramic-tile

    Apr 20, 2011 · Apt 3R

    Close
  • General

    Locks

    Apr 20, 2011 · Apt 3R

    Close
  • General

    Doors

    Apr 20, 2011 · Apt 3R

    Close
  • Heating

    Heat related

    Jan 28, 2010 · Apt 2L

    Close
  • Plumbing

    Water-leaks

    Jan 11, 2010 · Apt 2L

    Close
  • Paint/plaster

    Wall

    Jan 11, 2010 · Apt 2L

    Close
  • Paint/plaster

    Ceiling

    Jan 11, 2010 · Apt 2L

    Close
  • General

    Floor

    Jan 11, 2010 · Apt 2L

    Close
  • Heating

    Heat related

    Jan 11, 2010 · Apt 2L

    Close
  • Heating

    Heat related

    Jan 9, 2010 · Apt 2L

    Close
  • Heating

    Heat related

    Jan 7, 2010 · Apt 2L

    Close
  • General

    Mold

    Jan 7, 2010 · Apt 2L

    Close
  • Paint/plaster

    Wall

    Jan 7, 2010 · Apt 2L

    Close
  • Paint/plaster

    Wall

    Jan 7, 2010 · Apt 2L

    Close
  • Paint/plaster

    Ceiling

    Jan 4, 2010 · Apt 3R

    Close
  • Nonconst

    Vermin

    Jan 4, 2010 · Apt 3R

    Close
  • Paint/plaster

    Wall

    Jan 4, 2010 · Apt 3R

    Close
  • Nonconst

    Vermin

    Sep 7, 2009 · Apt 2L

    Close
  • General

    Ceramic-tile

    Apr 21, 2008 · Apt 3R

    Close
  • General

    Ceramic-tile

    Apr 21, 2008 · Apt 3R

    Close
  • Paint/plaster

    Ceiling

    Apr 21, 2008 · Apt 3R

    Close
  • Nonconst

    Vermin

    Apr 21, 2008 · Apt 3R

    Close
  • Heating

    Heat related

    Jan 21, 2008 · Apt BLDG

    Close
  • Heating

    Heat related

    Jan 2, 2008 · Apt BLDG

    Close
  • Heating

    Heat related

    Dec 20, 2007 · Apt BLDG

    Close
  • Heating

    Heat related

    Feb 19, 2007 · Apt 2

    Close
  • Heating

    Heat related

    Feb 6, 2007 · Apt BLDG

    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
1931
Floors
4
Residential units
8
Building area
6,500 ft²
Lot area
2,500 ft²
Zoning
R6
Community board
304
Council district
34
Block / lot
3175 / 22
Assessed value
$488,250
Landmark / historic district
No

HPD registration #347852, last renewed Nov 21, 2025.

Questions about 312 Jefferson Street

Who owns 312 Jefferson Street?

The owner of record in NYC Department of City Planning PLUTO data is Sl Systems LLC.

Does 312 Jefferson Street have violations?

Yes. NYC HPD has recorded 66 housing violations at this property.

Is 312 Jefferson Street rent stabilized?

NYC Department of Finance tax bills listed 7 rent-stabilized units here in 2024 (about 88% of its 8 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.

When was 312 Jefferson Street built?

City records list 1931 as the year it was built.

How many apartments are in 312 Jefferson Street?

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.