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510 Ralph Avenue

Brooklyn, NY 11233BBL 3-01369-0051Map

Owner of record: Brooklyn North Realty LLC

510 Ralph Avenue is a walk-up apartment building built in 1924 in Brooklyn, 11233. It has 6 residential units across 3 floors. The owner of record is Brooklyn North Realty LLC. HPD has recorded 108 housing violations here, most recently on May 5, 2026. 17 of the 50 most recent violations are still open.

HPD violations
108
DOB violations
47
ECB violations
3
HPD complaints
76

What to know

Concern
6 open Class C

Immediately hazardous issues among recent violations are still open.

Good
Last violation May 5, 2026

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

No rent-stabilized units in 2018–2024 tax bills

Some apartments can still be regulated. Use the rent-stabilized checker or request the rent history from HCR.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 108

  • 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.

    May 5, 2026

    Open — Nov sent out
  • 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.

    Jun 10, 2025

    Closed — Violation dismissed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges at vestibule door at public hall, 1st story

    Feb 26, 2025

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective latch set at building entrance at public hall, 1st story

    Feb 26, 2025

    Closed — Violation closed
  • C

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

    Feb 26, 2025

    Closed — Violation closed
  • B

    Remove all encumbrances consisting of household items at public hall, 3rd story

    Feb 26, 2025

    Open — Nov sent out
  • B

    Remove all encumbrances consisting of household items and bicycles at public hall, 3rd story

    Feb 26, 2025

    Open — Nov sent out
  • 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 29, 2024

    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 11, 2024

    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 22, 2023

    Closed — Violation dismissed
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.

    Mar 24, 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.

    Mar 1, 2022

    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.

    Mar 1, 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.

    Apr 12, 2021

    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.

    Apr 12, 2021

    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 31, 2019

    Closed — Violation dismissed
  • A

    § 300 m/d law file plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration duplex created from 1st. to 2nd. story in the entire apartment located at apt 1r lower level, 1st story, 1st apartment from north at east

    Nov 14, 2018 · Apt 1R

    Open — Nov sent out
  • C

    Properly repair with similar material the broken or defective fire retardant plaster at ceiling at public hall, 3rd story

    Nov 14, 2018

    Closed — Violation closed
  • C

    Repair the roof so that it will not leak over the ceiling at public hall, 3rd story

    Nov 14, 2018

    Closed — Violation closed
  • B

    Abate the nuisance consisting of roaches in the entire apartment located at apt 1r lower level, 1st story, 1st apartment from north at east

    Nov 14, 2018 · Apt 1R

    Open — Nov sent out
  • B

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

    Nov 14, 2018 · Apt 1R

    Open — Nov sent out
  • C

    Properly repair the source and abate the evidence of a water leak at ceiling in the 1st room from east at south located at apt 1r lower level, 1st story, 1st apartment from north at east

    Nov 14, 2018 · Apt 1R

    Closed — Violation closed
  • C

    Repair the broken or defective plastered surfaces and paint in a uniform color the east wall in the 2nd room from east located at apt 1r upper level, 1st story, 1st apartment from north at east

    Nov 14, 2018 · Apt 1R

    Closed — Violation closed
  • C

    Properly repair the source and abate the evidence of a water leak at east wall in the 2nd room from east located at apt 1r upper level, 1st story, 1st apartment from north at east

    Nov 14, 2018 · Apt 1R

    Closed — Violation closed
  • C

    Provide an adequate supply of heat from an approved central heating system, or an approved system of gas or electrical heating in good operating condition for the dwelling unit in the entire apartment located at apt 1r, 1st story, 1st apartment from north at east

    Nov 14, 2018 · Apt 1R

    Closed — Violation closed
  • C

    Repair the roof so that it will not leak over the ceiling at public hall, 3rd story

    Oct 29, 2018

    Open — Nov sent out
  • 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 19, 2018

    Closed — Violation dismissed
  • C

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

    Mar 15, 2018 · Apt 3

    Open — Nov sent out
  • C

    Provide hot water at all hot water fixtures in the entire apartment located at apt 4, 2nd story, 1st apartment from north at east

    Feb 12, 2018 · Apt 4

    Open — Nov sent out
  • 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 28, 2017

    Closed — Violation dismissed
  • C

    M/d law abate the nuisance consisting of scalding hot water temp at 146f in the kitchen located at apt 3 , 3rd story, apartment at north

    Jan 17, 2017 · Apt 3

    Closed — Violation closed
  • C

    Provide an adequate supply of heat from an approved central heating system, or an approved system of gas or electrical heating in good operating condition for the dwelling unit in the entire apartment located at apt 2r, 2nd story

    Dec 9, 2016 · Apt 2R

    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 14, 2016

    Closed — Violation dismissed
  • C

    Provide bridge shed at building front approximately 50 lineiar feet.

    Aug 24, 2016

    Closed — Violation closed
  • C

    Make safe by properly repairing the structural defect crack at front brick wall of building extending between 2nd and 3rd story

    Aug 16, 2016

    Closed — Violation closed
  • C

    Properly repair with similar material the broken or defective eroded and/or spalling cement mortar plaster wall at east wall, north wall, and south wall of building.

    Aug 16, 2016

    Closed — Violation closed
  • C

    M/d law abate the nuisance consisting of scalding hot water (134 degreess) in the entire apartment located at apt 3r, 3rd story, 1st apartment from north at east

    Nov 24, 2015 · Apt 3R

    Open — Nov sent out
  • B

    Fire egress defective. remove obstructing bars or unlawful gates from window to fire escape or provide approved type gate .. in the 1st room from east at south located at apt 3r, 3rd story, 1st apartment from north at east

    Nov 24, 2015 · Apt 3R

    Open — Nov sent out
  • C

    Properly repair the broken or defective heat-plant at boiler room

    Nov 24, 2015

    Closed — Violation closed
  • B

    Repair the roof so that it will not leak 'over ceiling' at public hall, 3rd story

    Nov 24, 2015

    Open — Nov sent out
  • C

    Remove all obstructions from water closet .. in the bathroom located at apt 1r, 1st story, 1st apartment from north at east

    Oct 29, 2015 · Apt 1R

    Open — Nov sent out
  • C

    Properly repair the broken or defective mortise lock and assembly at door (lower level) in the entrance located at apt 1r, 1st story, 1st apartment from north at east

    Oct 29, 2015 · Apt 1R

    Closed — Violation closed
  • B

    Abate the nuisance consisting of roaches in the entire apartment located at apt 1r, 1st story, 1st apartment from north at east

    Oct 29, 2015 · Apt 1R

    Open — Nov sent out
  • C

    M/d law abate the nuisance consisting of scalding hot water (140 degrees) in the entire apartment located at apt 1r, 1st story, 1st apartment from north at east

    Oct 29, 2015 · Apt 1R

    Open — Nov sent out
  • 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 13, 2015

    Closed — Violation dismissed
  • C

    Properly repair the broken or defective metal door mortice lock in the entrance located at apt 1r, 1st story, 1st apartment from west at north

    Oct 5, 2015 · Apt 1R

    Closed — Violation closed
  • B

    Abate the nuisance consisting of mice in the entire apartment located at apt 1r, 1st story, 1st apartment from west at north

    Oct 5, 2015 · Apt 1R

    Open — Nov sent out
  • B

    Abate the nuisance consisting of roaches in the entire apartment located at apt 1r, 1st story, 1st apartment from west at north

    Oct 5, 2015 · Apt 1R

    Open — Nov sent out
  • C

    Provide hot water at all hot water fixtures in the entire apartment located at apt 1 , 1st story, 1st apartment from west at north

    Aug 12, 2015 · Apt 1

    Closed — Violation closed

DOB building violations · 47

  • Low pressure boiler boiler required

    Violation issued-failure to file 2020 external low pressure inspection

    Jun 30, 2023

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued-failure to file 2021 external low pressure inspection

    Jun 30, 2023

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued-failure to file 2018 external low pressure inspection

    Jun 20, 2023

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued-failure to file 2019 external low pressure inspection

    Jun 20, 2023

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2017 inspection report

    Nov 8, 2019

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2016 inspection report

    Apr 6, 2018

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2015 inspection report

    Feb 24, 2017

    Dob violation - active
  • Fail to certify class 1 none

    Failure to certify correction on immediately hazardous (class 1) ecb violation

    Nov 16, 2016

    Dob violation - dismissed
  • Immediate emergency anythingoptional

    Ftm/sws

    Aug 26, 2016

    Dob violation - dismissed
  • Immediate emergency anythingoptional

    Ftm/sws

    Aug 25, 2016

    Dob violation - active
Show 37 more ↓
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2014 inspection report

    Oct 1, 2015

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2013 inspection report

    Mar 3, 2015

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2012 inspection report

    May 15, 2014

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2011 inspection report

    Mar 1, 2013

    Dob violation - active
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2010 inspection report

    Dec 13, 2011

    Dob violation - dismissed
  • Low pressure boiler boiler required

    Violation issued for failure to file annual boiler 2010 inspection report

    Dec 13, 2011

    Dob violation - active
  • Low pressure boiler boiler required

    Lblvio-low pressure boiler boiler required

    Dec 31, 2009

    Dob violation - dismissed
  • Low pressure boiler boiler required

    Lblvio-low pressure boiler boiler required

    Dec 31, 2009

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 1, 2009

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 1, 2009

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 3, 2008

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 3, 2008

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 19, 2007

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 19, 2007

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 6, 2006

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 6, 2006

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 31, 2005

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jan 31, 2005

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 13, 2004

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 13, 2004

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 19, 2003

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 19, 2003

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 26, 2002

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 26, 2002

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 27, 2001

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 27, 2001

    Dob violation - active
  • Construction other optional

    Hazardous

    Nov 17, 2000

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 7, 2000

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Feb 7, 2000

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Mar 16, 1999

    Dob violation - dismissed
  • 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

    May 4, 1998

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Sep 16, 1997

    Dob violation - dismissed
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Aug 29, 1995

    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 · 3

  • Class - 2

    B265 as per class 2 (b265) 28-303.7 failure to file a complete boilerinspection report as per dob records. submit a current bo9 report.corret all violating condition and submit the certificate of correction.

    Dec 28, 2016 · Penalty $2,500

    Active
  • Class - 1

    Failure to maintain bldg walls or appurtenances. noted: at time of inspection observed exp#1 has horizontal cracking along entire expose between 1st & 2nd fl. exp#4 has vertical & horozontal cracking at 1st fl

    Aug 17, 2016 · Penalty $5,000

    Active
  • Hazardous

    Failure to maintain bldg. noted; structural defects on all fls. from mid section of bldg to westerly wall due to rotted broken wood joists on 1st,2nd &3rd fls. all fls are being supproted temporarily with wood

    Nov 17, 2000

    Resolve

Complaints

  • Heat/hot water

    Apartment only

    Feb 8, 2026 · Apt 3R

    Close
  • Electric

    Power outage

    Feb 8, 2026 · Apt 3R

    Close
  • General

    Cooking gas

    Feb 8, 2026 · Apt 3R

    Close
  • Electric

    Power outage

    Jan 13, 2026 · Apt 3R

    Close
  • Safety

    Window guard broken/missing

    Feb 12, 2025 · Apt 3R

    Close
  • Safety

    Fire escape

    Feb 12, 2025 · Apt 3R

    Close
  • Paint/plaster

    Ceiling

    Feb 12, 2025 · Apt BLDG

    Close
  • Outside building

    Roof door/hatch

    Feb 12, 2025 · Apt BLDG

    Close
  • Unsanitary condition

    Garbage/recycling storage

    Feb 12, 2025 · Apt BLDG

    Close
  • Unsanitary condition

    Garbage/recycling storage

    Feb 12, 2025 · Apt BLDG

    Close
Show 40 more ↓
  • Safety

    Window guard broken/missing

    Feb 12, 2025 · Apt 3R

    Close
  • Door/window

    Door

    Feb 12, 2025 · Apt 3R

    Close
  • Safety

    Window guard broken/missing

    Feb 12, 2025 · Apt 2R

    Close
  • Safety

    Window guard broken/missing

    Feb 12, 2025 · Apt 2R

    Close
  • Paint/plaster

    Window/frame

    Feb 12, 2025 · Apt 2R

    Close
  • Safety

    Window guard broken/missing

    Feb 12, 2025 · Apt 2R

    Close
  • Door/window

    Door

    Feb 12, 2025 · Apt 2R

    Close
  • Safety

    Fire escape

    Feb 12, 2025 · Apt 2R

    Close
  • Safety

    Window guard broken/missing

    Feb 12, 2025 · Apt 2L

    Close
  • Door/window

    Door

    Feb 12, 2025 · Apt 2L

    Close
  • Safety

    Fire escape

    Feb 12, 2025 · Apt 2L

    Close
  • Safety

    Fire escape

    Feb 12, 2025 · Apt BLDG

    Close
  • Door/window

    Door

    Feb 12, 2025 · Apt BLDG

    Close
  • Door/window

    Door

    Feb 12, 2025 · Apt BLDG

    Close
  • Door/window

    Door

    Feb 12, 2025 · Apt BLDG

    Close
  • Heat/hot water

    Apartment only

    Nov 12, 2018 · Apt 1R

    Close
  • Heat/hot water

    Apartment only

    Oct 27, 2018 · Apt 3

    Close
  • Heat/hot water

    Apartment only

    Feb 8, 2018 · Apt 4

    Close
  • Heat/hot water

    Entire building

    Dec 9, 2016 · Apt 2R

    Close
  • Unsanitary condition

    Pests

    May 2, 2016 · Apt 4

    Close
  • Appliance

    Electric/gas range

    May 2, 2016 · Apt 4

    Close
  • Unsanitary condition

    Pests

    Dec 30, 2015 · Apt 3

    Close
  • Unsanitary condition

    Pests

    Dec 30, 2015 · Apt 4

    Close
  • Heat/hot water

    Entire building

    Oct 28, 2015 · Apt 1R

    Close
  • Heat/hot water

    Entire building

    Oct 3, 2015 · Apt BLDG

    Close
  • Door/window

    Door

    Sep 24, 2015 · Apt 1R

    Close
  • Unsanitary condition

    Pests

    Sep 24, 2015 · Apt 1R

    Close
  • Unsanitary condition

    Pests

    Sep 24, 2015 · Apt 1R

    Close
  • Plumbing

    Toilet

    Sep 24, 2015 · Apt 1R

    Close
  • Heat/hot water

    Entire building

    Aug 10, 2015 · Apt BLDG

    Close
  • Electric

    Power outage

    Apr 14, 2015 · Apt BLDG

    Close
  • Heat/hot water

    Entire building

    Nov 24, 2014 · Apt 3

    Close
  • Heat/hot water

    Entire building

    Sep 17, 2014 · Apt 1R

    Close
  • Heat/hot water

    Entire building

    Sep 11, 2014 · Apt 1L

    Close
  • Heat/hot water

    Apartment only

    Sep 10, 2014 · Apt 1R

    Close
  • Appliance

    Electric/gas range

    Sep 2, 2014 · Apt 1L

    Close
  • Appliance

    Refrigerator

    Sep 2, 2014 · Apt 1L

    Close
  • Unsanitary condition

    Pests

    Sep 2, 2014 · Apt 1L

    Close
  • Appliance

    Electric/gas range

    Sep 2, 2014 · Apt 1L

    Close
  • Heat/hot water

    Entire building

    Aug 29, 2014 · 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 (C2)
Year built
1924
Floors
3
Residential units
6
Building area
4,508 ft²
Lot area
2,058 ft²
Zoning
R6
Community board
308
Council district
41
Block / lot
1369 / 51
Assessed value
$441,000
Landmark / historic district
No

HPD registration #308231, last renewed Oct 29, 2025.

Questions about 510 Ralph Avenue

Who owns 510 Ralph Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Brooklyn North Realty LLC.

Does 510 Ralph Avenue have violations?

Yes. NYC HPD has recorded 108 housing violations at this property.

Is 510 Ralph Avenue rent stabilized?

No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.

When was 510 Ralph Avenue built?

City records list 1924 as the year it was built.

How many apartments are in 510 Ralph Avenue?

It has 6 residential units.

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