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306 Hart Street

Brooklyn, NY 11206BBL 3-01594-0018Map

Owner of record: Mauskopf, Joseph

306 Hart Street is a walk-up apartment building built in 2003 in Brooklyn, 11206. It has 3 residential units across 3 floors. The owner of record is Mauskopf, Joseph. HPD has recorded 39 housing violations here, most recently on May 8, 2026. 29 of the 39 most recent violations are still open.

HPD violations
39
DOB violations
0
ECB violations
0
HPD complaints
13

What to know

Concern
4 open Class C

Immediately hazardous issues among recent violations are still open.

Good
Last violation May 8, 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 · 39

  • 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 8, 2026

    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 18, 2025

    Closed — Violation dismissed
  • C

    Abate the infestation consisting of mice in the entire apartment located at apt 2, 2nd story, 1st apartment from south at west

    Jul 11, 2025 · Apt 2

    Open — Notice of issuance sent to tenant
  • C

    Abate the infestation consisting of roaches in the entire apartment located at apt 2, 2nd story, 1st apartment from south at west

    Jul 11, 2025 · Apt 2

    Open — Notice of issuance sent to tenant
  • A

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

    Jul 11, 2025 · Apt 2

    Open — Nov sent out
  • C

    Properly repair with similar material the broken or defective glass in lower window sash causing cut hazzard in the 3rd room from north located at apt 2, 2nd story, 1st apartment from south at west

    Jul 11, 2025 · Apt 2

    Open — Nov sent out
  • B

    Repair or replace the carbon monoxide detecting device(s). defective in the entire apartment located at apt 2, 2nd story, 1st apartment from south at west

    Jul 11, 2025 · Apt 2

    Open — Nov sent out
  • B

    Repair or replace the smoke detector defective in the entire apartment located at apt 2, 2nd story, 1st apartment from south at west

    Jul 11, 2025 · Apt 2

    Open — Nov sent out
  • C

    Abate the infestation consisting of mice in the entire apartment located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    Open — Notice of issuance sent to tenant
  • B

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

    Jun 13, 2025 · Apt 2

    Open — Nov sent out
Show 29 more ↓
  • B

    Repair or replace the smoke detector defective in the entire apartment located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    Open — Nov sent out
  • B

    Repair or replace the carbon monoxide detecting device(s). . missing in the entire apartment located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department at all walls in the kitchen located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department at all walls and ceiling in the 1st room from north at west located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department at all walls and ceiling in the 1st room from north at east located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department at all walls and ceiling in the 2nd room from north at west located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department at all walls and ceiling in the private hallway located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    Open — Nov sent out
  • A

    Paint with light colored paint to the satisfaction of this department at all walls and ceiling in the bathroom located at apt 2, 2nd story, 1st apartment from south at west

    Jun 13, 2025 · Apt 2

    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 13, 2025

    Open — Nov sent out
  • B

    Refit building entrance door , 1st story

    Jun 13, 2025

    Open — Nov sent out
  • C

    Replace or repair the self-closing doors that is missing or defective door at the building entrance , 1st story

    Jun 11, 2025

    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 26, 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 17, 2024

    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 17, 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 30, 2023

    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 7, 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 9, 2022

    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.

    Apr 19, 2021

    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.

    Apr 19, 2021

    Closed — Violation dismissed
  • A

    Post a proper notice of carbon monoxide detecting device requirements, in a form approved by the commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in a private dwelling.

    Mar 2, 2020

    Open — Nov sent out
  • A

    Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected

    Mar 2, 2020

    Open — Nov sent out
  • A

    Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd.

    Mar 2, 2020

    Open — Nov sent out
  • A

    Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box missing

    Mar 2, 2020

    Open — Nov sent out
  • A

    § 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor frame missing

    Mar 2, 2020

    Open — Nov sent out
  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building.

    Mar 2, 2020

    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 4, 2019

    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 26, 2018

    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.

    Dec 8, 2017

    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 28, 2016

    Closed — Violation dismissed

DOB building violations · 0

No DOB violations on record

ECB violations · 0

No ECB violations on record

Complaints

  • Unsanitary condition

    Pests

    Jul 9, 2025 · Apt 2

    Close
  • Plumbing

    Steam pipe/riser

    Jul 9, 2025 · Apt 2

    Close
  • Paint/plaster

    Ceiling

    Jul 9, 2025 · Apt 2

    Close
  • Door/window

    Window pane

    Jul 9, 2025 · Apt 2

    Close
  • Unsanitary condition

    Mold

    Jul 9, 2025 · Apt 2

    Close
  • Unsanitary condition

    Pests

    Jun 9, 2025 · Apt 2

    Close
  • Paint/plaster

    Ceiling

    Jun 9, 2025 · Apt 2

    Close
  • Door/window

    Window pane

    Jun 9, 2025 · Apt 2

    Close
  • Unsanitary condition

    Mold

    Jun 9, 2025 · Apt 2

    Close
  • Plumbing

    Basin/sink

    Jun 9, 2025 · Apt 2

    Close
Show 3 more ↓
  • Electric

    Wiring

    Jun 7, 2025 · Apt 1

    Close
  • Unsanitary condition

    Garbage/recycling storage

    May 13, 2025 · Apt BLDG

    Close
  • Heat/hot water

    Apartment only

    Feb 29, 2020 · Apt 3

    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
2003
Floors
3
Residential units
3
Building area
2,971 ft²
Lot area
1,917 ft²
Zoning
R6B
Community board
303
Council district
36
Block / lot
1594 / 18
Assessed value
$78,480
Landmark / historic district
No

HPD registration #380974, last renewed Jan 28, 2026.

Questions about 306 Hart Street

Who owns 306 Hart Street?

The owner of record in NYC Department of City Planning PLUTO data is Mauskopf, Joseph.

Does 306 Hart Street have violations?

Yes. NYC HPD has recorded 39 housing violations at this property.

Is 306 Hart Street 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 306 Hart Street built?

City records list 2003 as the year it was built.

How many apartments are in 306 Hart Street?

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.