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6309 23 Avenue

Brooklyn, NY 11204BBL 3-06558-0001Map

Owner of record: 23rd Realty L L C

6309 23 Avenue is an elevator apartment building built in 1931 in Brooklyn, 11204. It has 64 residential units across 6 floors. The owner of record is 23rd Realty L L C. HPD has recorded 137 housing violations here, most recently on December 22, 2025. 11 of the 50 most recent violations are still open. City tax records listed 64 rent-stabilized apartments here in 2024.

HPD violations
137
DOB violations
14
ECB violations
3
HPD complaints
169

What to know

Concern
2 open Class C

Immediately hazardous issues among recent violations are still open.

Good
Last violation Dec 22, 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
64
About 100% of the building's 64 apartments

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 · 137

  • C

    Replace or repair the self-closing doors that is missing or defective hinges at compactor door at north wall at public hall, 6th story

    Dec 22, 2025

    Closed — Violation closed
  • B

    Provide adequate supply of hot water for the fixtures low volume all fitures in the entire apartment located at apt f2, 6th story, 5th apartment from west at north

    Dec 22, 2025 · Apt F2

    Closed — Violation dismissed
  • B

    Provide adequate supply of cold water for the fixtures low volume all fixures in the entire apartment located at apt f2, 6th story, 5th apartment from west at north

    Dec 22, 2025 · Apt F2

    Closed — Violation dismissed
  • C

    Provide ready access to buildings heating system door locked at boiler room

    Dec 22, 2025

    Closed — Violation dismissed
  • C

    Provide hot water at all hot water fixtures in the entire apartment located at apt f2, 6th story, 5th apartment from west at north

    Dec 22, 2025 · Apt F2

    Closed — Violation dismissed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges at compactor clost door at public hall, 2nd story, section ''south''

    Apr 16, 2025

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 3f, 6th story, 1st apartment from north at east

    Mar 27, 2025 · Apt 3F

    Open — Nov sent out
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 9e, 5th story, 2nd apartment from east at south

    Mar 27, 2025 · Apt 9E

    Open — Nov sent out
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 10e, 5th story, 1st apartment from south at west

    Mar 27, 2025 · Apt 10E

    Open — Nov sent out
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 9b, 2nd story, 2nd apartment from east at south

    Mar 27, 2025 · Apt 9B

    Open — Nov sent out
Show 40 more ↓
  • A

    Paint with light colored paint to the satisfaction of this department all peeling paint surfaces in the private hallway , the 1st room from north at west located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the bathroom located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • A

    Trace and repair the source and abate the visible mold condition... (less than 10 sq ft) at 1st window frame from west at north wall in the bathroom located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department at north wall, east wall, 1st closet from west at north wall door, 1st closet from west at north wall door frame in the foyer located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department at west wall, ceiling in the 2nd room from north at west located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department at 1st window frame from west at north wall in the kitchen located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • C

    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) south wall, east wall in the 2nd room from north at west located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • C

    Correct the lead-based paint hazard-paint that is xrf tested inconclusive for lead content at 0.5mg/cm2 and is presumed lead paint as set forth in (28 rcny §11-07(b)) and that is peeling or on a deteriorated subsurface-using work practices set forth in 28 rcny §11-06(b)(2) north wall in the 2nd room from north at west located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • C

    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 from north at east wall, 1st door frame from north at east wall in the foyer located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • C

    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) north wall in the kitchen located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • C

    Correct the lead-based paint hazard-paint that is xrf tested inconclusive for lead content at 0.5mg/cm2 and is presumed lead paint as set forth in (28 rcny §11-07(b)) 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 located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • C

    Correct the lead-based paint hazard-paint that is xrf tested inconclusive for lead content at 0.5mg/cm2 and is presumed lead paint as set forth in (28 rcny §11-07(b)) 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 east at south wall in the bathroom located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department the north wall in the 2nd room from north at west located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department at 1st window frame from west at north wall, 1st door from east at south wall in the bathroom located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department the west wall in the kitchen located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • A

    Paint with light colored paint to the satisfaction of this department the 1st door frame from east at south wall in the bathroom located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 20, 2025 · Apt 11E

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective door hinges at fire door at public hall, 2nd story

    Mar 17, 2025

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 4b, 2nd story, 2nd apartment from north at east

    Mar 17, 2025 · Apt 4B

    Open — Nov sent out
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 6b, 2nd story, 3rd apartment from north at east

    Mar 17, 2025 · Apt 6B

    Open — Nov sent out
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 10b, 2nd story, 1st apartment from south at west

    Mar 17, 2025 · Apt 10B

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 7c, 3rd story, 4th apartment from north at east

    Mar 17, 2025 · Apt 7C

    Open — Nov sent out
  • C

    Replace or repair the self-closing doors that is missing or defective door hinge at fire door at public hall, 3rd story

    Mar 17, 2025

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective door frame at fire door at public hall, 5th story

    Mar 17, 2025

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges at fire door at public hall, 6th story

    Mar 17, 2025

    Closed — Violation closed
  • C

    Fire escape defective. replace with new the broken, defective and/or missing broken rung 9th from bottom at dropladder at 1st stack fire escape from west at south exterior wall

    Mar 17, 2025

    Closed — Violation dismissed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 1c, 3rd story, 4th apartment from south at west

    Mar 17, 2025 · Apt 1C

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 4d, 4th story, 2nd apartment from north at east

    Mar 17, 2025 · Apt 4D

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 3d, 4th story, 1st apartment from north at east

    Mar 17, 2025 · Apt 3D

    Open — Nov sent out
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 11e, 5th story, 2nd apartment from south at west

    Mar 17, 2025 · Apt 11E

    Open — Nov sent out
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 8e, 5th story, 1st apartment from east at south

    Mar 17, 2025 · Apt 8E

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 9c, 3rd story, 2nd apartment from east at south

    Mar 17, 2025 · Apt 9C

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 2b, 2nd story, 5th apartment from south at west

    Mar 17, 2025 · Apt 2B

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 7b, 2nd story, 4th apartment from north at east

    Mar 17, 2025 · Apt 7B

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 8b, 2nd story, 1st apartment from east at south

    Mar 17, 2025 · Apt 8B

    Closed — Violation closed
  • B

    Certify compliance with lead-based paint hazard control requirements during period of unit vacancy by submitting required supporting documentation and affidavits for apartment located at apt 8a, 1st story, 1st apartment from south at west

    Mar 17, 2025 · Apt 8A

    Closed — Violation closed
  • C

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

    Jan 9, 2025 · Apt 8F

    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.

    Jan 9, 2025 · Apt 8F

    Open — Nov sent out
  • A

    Replace with new the missing door knob at compactor closet at public hall, 5th story

    Jul 24, 2024

    Closed — Violation dismissed
  • B

    Properly repair or replace the broken or defective [ lalatch set assembly] at the apartment door, in the entrance located at apt 3e, 5th story, 1st apartment from north at east

    Jun 26, 2024 · Apt 3E

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective mansonry cement at the brick wall at the north exterior wall throughout, in the north side court

    Jun 26, 2024

    Closed — Violation dismissed

DOB building violations · 14

  • Failure to benchmark none

    Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4

    Aug 3, 2020

    Dob violation - dismissed
  • Failure to benchmark none

    Failure to file benchmarking report of energy use as per ad. code sec. 28-309.4

    May 3, 2020

    Dob violation - dismissed
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    May 22, 2019

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Apr 22, 2018

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Jun 27, 2016

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Sep 29, 2015

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Aug 9, 2013

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Dec 27, 2011

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Jun 11, 2010

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Nov 12, 2008

    Dob violation - resolved
Show 4 more ↓
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Feb 6, 2002

    Dob violation - resolved
  • Elevator elevatorrequired

    3p2137

    Nov 9, 1999

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Apr 25, 1990

    Dob violation - resolved
  • Elevator elevatorrequired

    E-elevator elevatorrequired

    Apr 27, 1989

    Dob violation - resolved

ECB violations · 3

  • Class - 2

    Repair undercar light., shorten hoist ropes to provide minimum of 6 inches of runby.

    Apr 13, 2023 · Penalty $655

    Resolve
  • Class - 1

    Failure to maintain building in code compliant manner manner noted at time of inspection observation was made from in apt 4e at epxosure (3) rear window to fire escape bricks below which have fallen from above

    Jun 17, 2020 · Penalty $1,250

    Resolve
  • Class - 1

    05z10,59o02,56y13,56o02,68b07,60q07,71x10,70o02,70m07. 05a10- door zone restrictor has been rendered inoperative this is a safety device to ensure elevator passengers safety rmdy: repair restrictor; 59o02

    Jan 16, 2019

    Resolve

Complaints

  • Plumbing

    Water supply

    Dec 24, 2025 · Apt F2

    Close
  • Heat/hot water

    Apartment only

    Dec 19, 2025 · Apt F2

    Close
  • Plumbing

    Water supply

    Dec 19, 2025 · Apt F2

    Close
  • Safety

    Window guard broken/missing

    Jan 7, 2025 · Apt 8F

    Close
  • Unsanitary condition

    Mold

    Jan 7, 2025 · Apt 8F

    Close
  • Unsanitary condition

    Pests

    Jan 7, 2025 · Apt 8F

    Close
  • Safety

    Carbon monoxide detector

    Jan 7, 2025 · Apt 8F

    Close
  • Unsanitary condition

    Pests

    Jan 7, 2025 · Apt 8F

    Close
  • Safety

    Smoke detector

    Jan 7, 2025 · Apt 8F

    Close
  • Water leak

    Slow leak

    May 28, 2024 · Apt 3E

    Close
Show 40 more ↓
  • Heat/hot water

    Entire building

    Feb 3, 2024 · Apt BLDG

    Close
  • Paint/plaster

    Ceiling

    Mar 20, 2023 · Apt 7B

    Close
  • Paint/plaster

    Door/frame

    Dec 14, 2022 · Apt 8F

    Close
  • Door/window

    Door frame

    Dec 14, 2022 · Apt 8F

    Close
  • Door/window

    Window frame

    Dec 14, 2022 · Apt 8F

    Close
  • Safety

    Window guard broken/missing

    Mar 14, 2022 · Apt 6C

    Close
  • Plumbing

    Water supply

    May 27, 2021 · Apt F4

    Close
  • Heat/hot water

    Entire building

    Mar 15, 2021 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Mar 15, 2021 · Apt 2F

    Close
  • Water leak

    Slow leak

    Dec 31, 2020 · Apt D5

    Close
  • Unsanitary condition

    Mold

    Dec 31, 2020 · Apt D5

    Close
  • Paint/plaster

    Ceiling

    Nov 18, 2020 · Apt 8B

    Close
  • Paint/plaster

    Wall

    Nov 18, 2020 · Apt 8B

    Close
  • Electric

    No lighting

    Nov 18, 2020 · Apt 8B

    Close
  • Unsanitary condition

    Mold

    Nov 18, 2020 · Apt 8B

    Close
  • Electric

    Lighting

    Nov 18, 2020 · Apt 8B

    Close
  • Paint/plaster

    Ceiling

    Nov 18, 2020 · Apt 8B

    Close
  • Paint/plaster

    Ceiling

    Nov 18, 2020 · Apt 8B

    Close
  • Water leak

    Heavy flow

    Nov 18, 2020 · Apt 8B

    Close
  • Water leak

    Slow leak

    Jan 17, 2020 · Apt C4

    Close
  • Plumbing

    Bathtub/shower

    Jan 17, 2020 · Apt C4

    Close
  • Water leak

    Slow leak

    Oct 20, 2019 · Apt D3

    Close
  • Unsanitary condition

    Pests

    Oct 14, 2019 · Apt 2NDFLO

    Close
  • Heat/hot water

    Apartment only

    Oct 5, 2019 · Apt 8B

    Close
  • Flooring/stairs

    Floor

    Jul 30, 2019 · Apt F2

    Close
  • Unsanitary condition

    Pests

    Dec 17, 2018 · Apt 8B

    Close
  • Paint/plaster

    Wall

    Oct 14, 2018 · Apt BLDG

    Close
  • Plumbing

    Radiator

    Oct 14, 2018 · Apt BLDG

    Close
  • Flooring/stairs

    Floor

    Oct 12, 2018 · Apt BLDG

    Close
  • Electric

    Lighting

    Oct 10, 2018 · Apt BLDG

    Close
  • Electric

    Lighting

    Oct 7, 2018 · Apt BLDG

    Close
  • Electric

    Lighting

    Oct 5, 2018 · Apt BLDG

    Close
  • Door/window

    Window frame

    Sep 26, 2018 · Apt BLDG

    Close
  • Paint/plaster

    Window/frame

    Sep 15, 2018 · Apt BLDG

    Close
  • Plumbing

    Radiator

    Sep 13, 2018 · Apt BLDG

    Close
  • Electric

    Lighting

    Sep 8, 2018 · Apt BLDG

    Close
  • Door/window

    Window frame

    Sep 5, 2018 · Apt BLDG

    Close
  • Paint/plaster

    Window/frame

    Aug 27, 2018 · Apt BLDG

    Close
  • Electric

    Outlet/switch

    Aug 26, 2018 · Apt BLDG

    Close
  • Electric

    No lighting

    Aug 23, 2018 · 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
Elevator apartment building (D1)
Year built
1931
Floors
6
Residential units
64
Building area
62,400 ft²
Lot area
14,000 ft²
Zoning
R4-1
Community board
311
Council district
44
Block / lot
6558 / 1
Assessed value
$1,616,850
Landmark / historic district
No

HPD registration #333795, last renewed Jul 18, 2025.

Questions about 6309 23 Avenue

Who owns 6309 23 Avenue?

The owner of record in NYC Department of City Planning PLUTO data is 23rd Realty L L C.

Does 6309 23 Avenue have violations?

Yes. NYC HPD has recorded 137 housing violations at this property.

Is 6309 23 Avenue rent stabilized?

NYC Department of Finance tax bills listed 64 rent-stabilized units here in 2024 (about 100% of its 64 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.

When was 6309 23 Avenue built?

City records list 1931 as the year it was built.

How many apartments are in 6309 23 Avenue?

It has 64 residential units.

Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.