300 Union Street
Brooklyn, NY 11231BBL 3-00435-0013Map
Owner of record: Buro, Coni
300 Union Street is a walk-up apartment building built in 1920 in Brooklyn, 11231. It has 4 residential units across 3 floors. The owner of record is Buro, Coni. HPD has recorded 9 housing violations here, most recently on May 6, 2026.
- HPD violations
- 9
- DOB violations
- 0
- ECB violations
- 0
- HPD complaints
- 0
What to know
No open immediately-hazardous violations among recent records.
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. The newest 10 per agency here; the full lists are a click away.
HPD housing violations · 9
- 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 6, 2026
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 29, 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 12, 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.
Mar 27, 2023
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 14, 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 2, 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.
Apr 13, 2021
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 22, 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.
Nov 15, 2016
Closed — Violation dismissed
DOB building violations · 0
No DOB violations on record
ECB violations · 0
No ECB violations on record
Complaints
No HPD complaints in our records
Sales history
| Date | Price | Type | Units |
|---|---|---|---|
| Jun 30, 2026 | Non-market transfer | Rentals - walkup apartments | 4 |
Building details
- Building type
- Walk-up apartment building (C3)
- Year built
- 1920
- Floors
- 3
- Residential units
- 4
- Building area
- 2,970 ft²
- Lot area
- 2,200 ft²
- Zoning
- R6B
- Community board
- 306
- Council district
- 39
- Block / lot
- 435 / 13
- Assessed value
- $1,077,750
- Landmark / historic district
- No
HPD registration #345134, last renewed Aug 30, 2025.
Questions about 300 Union Street
Who owns 300 Union Street?
The owner of record in NYC Department of City Planning PLUTO data is Buro, Coni.
Does 300 Union Street have violations?
Yes. NYC HPD has recorded 9 housing violations at this property.
Is 300 Union 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 300 Union Street built?
City records list 1920 as the year it was built.
How many apartments are in 300 Union Street?
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.