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504 Prospect Avenue

Brooklyn, NY 11215BBL 3-00871-0016Map

Owner of record: Walsh, John J

504 Prospect Avenue is a walk-up apartment building built in 1920 in Brooklyn, 11215. It has 3 residential units across 3 floors. The owner of record is Walsh, John J. HPD has recorded 10 housing violations here, most recently on May 5, 2026.

HPD violations
10
DOB violations
0
ECB violations
0
HPD complaints
1

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

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 · 10

  • 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

    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.

    Jun 10, 2025

    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
  • 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
  • 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.

    Nov 14, 2016

    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 13, 2015

    Closed — Violation dismissed

DOB building violations · 0

No DOB violations on record

ECB violations · 0

No ECB violations on record

Complaints

  • Safety

    Window guard broken/missing

    Oct 13, 2015 · Apt 1

    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 (C0)
Year built
1920
Floors
3
Residential units
3
Building area
3,420 ft²
Lot area
1,600 ft²
Zoning
R5B
Community board
307
Council district
39
Block / lot
871 / 16
Assessed value
$204,120
Landmark / historic district
No

HPD registration #364233, last renewed Sep 30, 2025.

Questions about 504 Prospect Avenue

Who owns 504 Prospect Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Walsh, John J.

Does 504 Prospect Avenue have violations?

Yes. NYC HPD has recorded 10 housing violations at this property.

Is 504 Prospect 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 504 Prospect Avenue built?

City records list 1920 as the year it was built.

How many apartments are in 504 Prospect Avenue?

It has 3 residential units.

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