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521 Throop Avenue

Brooklyn, NY 11221BBL 3-01831-0002Map

Owner of record: Dean, Estelle

521 Throop Avenue is a walk-up apartment building built in 1905 in Brooklyn, 11221. It has 4 residential units across 4 floors. The owner of record is Dean, Estelle. HPD has recorded 43 housing violations here, most recently on June 11, 2025. 32 of the 43 most recent violations are still open.

HPD violations
43
DOB violations
0
ECB violations
0
HPD complaints
42

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

Good
Last violation Jun 11, 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 · 43

  • 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 11, 2025

    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 27, 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 12, 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 21, 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 27, 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 10, 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 2, 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 2, 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 13, 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 22, 2018

    Closed — Violation dismissed
Show 33 more ↓
  • 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 15, 2016

    Closed — Violation dismissed
  • B

    Fire egress defective. remove obstructing bars or unlawful gates from window to fire escape or provide approved type gate .. in the kitchen located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at all walls and ceiling inside closet in the private hallway located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Abate the nuisance consisting of roaches in the entire apartment located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Abate the nuisance consisting of mice in the entire apartment located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Properly repair the broken or defective lower sash counter balances at south and central windows in the 4th room from east at north located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • A

    Repair the broken or defective connection at wasteline for sink in the kitchen located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • A

    Properly repair with similar material the broken or defective hole by sink at wooden floor in the kitchen located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Properly repair the broken or defective lower sash counter balance at east window in the kitchen located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • A

    Repair the broken or defective plastered surfaces and paint in a uniform color at west wall in the 1st room from east at north located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • A

    Properly repair the broken or defective sliding door at east wall in the 4th room from east at north located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Properly secure the loose door at west wall in the 2nd room from east at north located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Repair or replace the smoke detector defective located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Properly repair the broken or defective intercommunication system located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 2nd room from east at north located at apt 4, 4th story, apartment at east

    Mar 25, 2012 · Apt 4

    Open — Nov sent out
  • A

    Properly repair the broken or defective intercom in the entire apartment located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • B

    Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • A

    Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 2nd room from east at north located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • A

    Properly repair the broken or defective upper sash at window so it closes properly in the 4th room from east at north located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • A

    Refit door to 3rd room from east at north in the 4th room from east at north located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • B

    Repair or replace the smoke detector defective located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • B

    Abate the nuisance consisting of roaches in the entire apartment located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • B

    Abate the nuisance consisting of mice in the entire apartment located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • A

    Repair the broken or defective plastered surfaces and paint in a uniform color walls and ceiling in the 3rd room from east at south located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • B

    Repair the broken or defective connection on drain line at sink in the kitchen located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • B

    Properly repair the broken or defective upper sash so it closes properly in the kitchen located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • A

    Properly repair the broken or defective door to private hall in the 2nd room from east at north located at apt 4, 4th story, apartment at east

    Mar 1, 2012 · Apt 4

    Open — Nov sent out
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 2nd room from north located at apt 4fl, 4th story, 1st apartment from south at west

    Feb 12, 2012 · Apt 4FL

    Open — Nov sent out
  • B

    Properly repair the broken or defective door in the 2nd room from north located at apt 4fl, 4th story, 1st apartment from south at west

    Feb 12, 2012 · Apt 4FL

    Open — Nov sent out
  • B

    Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. located at apt 4fl, 4th story, 1st apartment from south at west

    Feb 12, 2012 · Apt 4FL

    Open — Nov sent out
  • B

    Repair or replace the smoke detector missing located at apt 4fl, 4th story, 1st apartment from south at west

    Feb 12, 2012 · Apt 4FL

    Open — Nov sent out
  • B

    Abate the nuisance consisting of mice located at apt 4fl, 4th story, 1st apartment from south at west

    Feb 12, 2012 · Apt 4FL

    Open — Nov sent out

DOB building violations · 0

No DOB violations on record

ECB violations · 0

No ECB violations on record

Complaints

  • Nonconst

    Vermin

    Mar 22, 2012 · Apt 4

    Close
  • Nonconst

    Vermin

    Mar 22, 2012 · Apt 4

    Close
  • Nonconst

    Vermin

    Mar 22, 2012 · Apt 4

    Close
  • General

    Windows

    Mar 22, 2012 · Apt 4

    Close
  • Plumbing

    Basin/sink

    Mar 22, 2012 · Apt 4

    Close
  • Paint/plaster

    Wall

    Mar 22, 2012 · Apt 4

    Close
  • General

    Windows

    Mar 22, 2012 · Apt 4

    Close
  • Paint/plaster

    Wall

    Mar 22, 2012 · Apt 4

    Close
  • General

    Doors

    Mar 22, 2012 · Apt 4

    Close
  • General

    Doors

    Mar 22, 2012 · Apt 4

    Close
Show 32 more ↓
  • Nonconst

    Carbon monoxide

    Mar 22, 2012 · Apt 4

    Close
  • Nonconst

    Carbon monoxide

    Mar 22, 2012 · Apt 4

    Close
  • Electric

    Bell-buzzer/intercom

    Mar 22, 2012 · Apt 4

    Close
  • Paint/plaster

    Wall

    Mar 22, 2012 · Apt 4

    Close
  • Paint/plaster

    Ceiling

    Mar 22, 2012 · Apt 4

    Close
  • Paint/plaster

    Wall

    Mar 22, 2012 · Apt 4

    Close
  • Paint/plaster

    Wall

    Feb 27, 2012 · Apt 4

    Close
  • General

    Doors

    Feb 27, 2012 · Apt 4

    Close
  • General

    Window guards

    Feb 27, 2012 · Apt 4

    Close
  • General

    Windows

    Feb 27, 2012 · Apt 4

    Close
  • Plumbing

    Basin/sink

    Feb 27, 2012 · Apt 4

    Close
  • General

    Cabinet

    Feb 27, 2012 · Apt 4

    Close
  • Nonconst

    Vermin

    Feb 27, 2012 · Apt 4

    Close
  • Nonconst

    Vermin

    Feb 27, 2012 · Apt 4

    Close
  • Nonconst

    Vermin

    Feb 27, 2012 · Apt 4

    Close
  • Nonconst

    Smoke detector

    Feb 27, 2012 · Apt 4

    Close
  • Electric

    Bell-buzzer/intercom

    Feb 8, 2012 · Apt 4FL

    Close
  • General

    Doors

    Feb 8, 2012 · Apt 4FL

    Close
  • Plumbing

    Basin/sink

    Feb 8, 2012 · Apt 4FL

    Close
  • General

    Doors

    Feb 8, 2012 · Apt 4FL

    Close
  • Nonconst

    Carbon monoxide

    Feb 8, 2012 · Apt 4FL

    Close
  • Electric

    Wiring

    Feb 8, 2012 · Apt 4FL

    Close
  • Paint/plaster

    Wall

    Feb 8, 2012 · Apt 4FL

    Close
  • Paint/plaster

    Wall

    Feb 8, 2012 · Apt 4FL

    Close
  • Paint/plaster

    Wall

    Feb 8, 2012 · Apt 4FL

    Close
  • General

    Windows

    Feb 8, 2012 · Apt 4FL

    Close
  • Nonconst

    Smoke detector

    Feb 8, 2012 · Apt 4FL

    Close
  • Nonconst

    Vermin

    Feb 8, 2012 · Apt 4FL

    Close
  • Nonconst

    Vermin

    Feb 8, 2012 · Apt 4FL

    Close
  • Nonconst

    Vermin

    Feb 8, 2012 · Apt 4FL

    Close
  • Heating

    Heat related

    Feb 8, 2012 · Apt 4FL

    Close
  • Heating

    Heat related

    Nov 17, 2011 · Apt 4

    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 (C3)
Year built
1905
Floors
4
Residential units
4
Building area
4,800 ft²
Lot area
1,800 ft²
Zoning
R6B
Community board
303
Council district
36
Block / lot
1831 / 2
Assessed value
$589,500
Landmark / historic district
No

HPD registration #373506, last renewed Sep 16, 2025.

Questions about 521 Throop Avenue

Who owns 521 Throop Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Dean, Estelle.

Does 521 Throop Avenue have violations?

Yes. NYC HPD has recorded 43 housing violations at this property.

Is 521 Throop 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 521 Throop Avenue built?

City records list 1905 as the year it was built.

How many apartments are in 521 Throop Avenue?

It has 4 residential units.

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