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
Immediately hazardous issues among recent violations are still open.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
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.
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
- CImmediately hazardous
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 - BHazardous
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 - BHazardous
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 - CImmediately hazardous
Provide ready access to buildings heating system door locked at boiler room
Dec 22, 2025
Closed — Violation dismissed - CImmediately hazardous
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 - CImmediately hazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 ↓
- ANon-hazardous
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 - BHazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - CImmediately hazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - BHazardous
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 - CImmediately hazardous
Correct failure to notify occupants and/or to investigate lead-based paint hazards.
Jan 9, 2025 · Apt 8F
Open — Nov sent out - CImmediately hazardous
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 - ANon-hazardous
Replace with new the missing door knob at compactor closet at public hall, 5th story
Jul 24, 2024
Closed — Violation dismissed - BHazardous
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 - BHazardous
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
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.