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
Immediately hazardous issues among recent violations are still open.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 39
- ANon-hazardous
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 - IInformation / order
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 - CImmediately hazardous
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 - CImmediately hazardous
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 - ANon-hazardous
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 - CImmediately hazardous
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 - BHazardous
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 - BHazardous
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 - CImmediately hazardous
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 - BHazardous
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 ↓
- BHazardous
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 - BHazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - BHazardous
Refit building entrance door , 1st story
Jun 13, 2025
Open — Nov sent out - CImmediately hazardous
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 - IInformation / order
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 - ANon-hazardous
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 - IInformation / order
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 - ANon-hazardous
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 - IInformation / order
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 - ANon-hazardous
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 - ANon-hazardous
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 - IInformation / order
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
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 - ANon-hazardous
§ 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 - ANon-hazardous
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 - IInformation / order
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 - IInformation / order
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 - IInformation / order
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 - IInformation / order
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
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.