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21 Prospect Park Sw

Brooklyn, NY 11215BBL 3-01106-0027Map

Owner of record: Nader, Ronald J

21 Prospect Park Sw is a walk-up apartment building built in 1899 in Brooklyn, 11215. It has 3 residential units across 3 floors. The owner of record is Nader, Ronald J. HPD has recorded 12 housing violations here, most recently on November 19, 2025. 1 of the 12 most recent violations are still open.

HPD violations
12
DOB violations
0
ECB violations
0
HPD complaints
0

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

Good
Last violation Nov 19, 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

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 · 12

  • 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 19, 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.

    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
  • 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, 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 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 9, 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.

    Oct 31, 2019

    Closed — Violation dismissed
Show 2 more ↓
  • B

    Provide adequate lighting at or near the outside of the front entranceway of the building and keep same burning from sunset every day to sunrise on the day following ,100 watts required.

    Jun 9, 2005

    Open — Nov sent out
  • A

    D26-20.08,20.09 adm code file certification of satisfactory installation of smoke detecting device in accordance with h.p.d. rules and regulations.

    Jan 20, 1982

    Closed — Violation closed

DOB building violations · 0

No DOB violations on record

ECB violations · 0

No ECB violations on record

Complaints

No HPD complaints in our records

Complaint data is still being backfilled from NYC Open Data.

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
1899
Floors
3
Residential units
3
Building area
2,898 ft²
Lot area
1,615 ft²
Zoning
R6A
Community board
307
Council district
39
Block / lot
1106 / 27
Assessed value
$240,360
Landmark / historic district
No

HPD registration #316312, last renewed Dec 9, 2025.

Questions about 21 Prospect Park Sw

Who owns 21 Prospect Park Sw?

The owner of record in NYC Department of City Planning PLUTO data is Nader, Ronald J.

Does 21 Prospect Park Sw have violations?

Yes. NYC HPD has recorded 12 housing violations at this property.

Is 21 Prospect Park Sw 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 21 Prospect Park Sw built?

City records list 1899 as the year it was built.

How many apartments are in 21 Prospect Park Sw?

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.