399 Kosciuszko Street
Class B
Class C
12 months to Aug 2026
rent-stabilized with
DHCR (most recent year)
units (PLUTO)
12 months through June 2026
rent
min walk
(311 complaints)
errands grade
nearby
Top insights
- More open HPD violations than ~60% of buildings in this ZIP (9 open)
- 3 open hazardous (Class C) violations
- More HPD complaints than the neighborhood average (27 vs ~4)
- Built before 1939 (city records: 1931) — likely subject to NYC lead-paint rules
- Rent-stabilized: 12 of 12 units
About this building
The building’s floor space is 3.6 times the size of its lot: 12,460 sq ft of building on a 3,500 sq ft lot.
Comparisons with neighboring buildings, as of October 28, 2026.
399 Kosciuszko Street
Open in Google Street View ↗
- City records show 9 open HPD violations, 3 immediately hazardous (Class C) at this building. Ask which are still unresolved in the unit and the landlord’s timeline to clear them.
- The oldest open violation on record dates to 2017 — why has it stayed open this long, and is it in or near this unit?
- DHCR’s most recent registration lists 12 rent-stabilized units here. Ask whether this specific unit is one of them, and ask the landlord for its legal regulated rent and lease history.
- Confirm the condition behind the most recent open violation was actually repaired, not just marked closed: Abate the nuisance consisting of key operated lock on door leading to room with fire escape.
- Confirm in person that the immediately-hazardous (Class C) conditions — typically heat, hot water, leaks, mold or pests — are genuinely fixed, not just marked closed.
399 Kosciuszko Street sits in Brooklyn, ZIP 11221. The closest subway is Myrtle Av (M,J,Z) (8-minute walk), served by the J, M, and Z lines.
Building Condition
Oldest open violation: May 2017 · Most recent: April 2026. HPD marks a violation open until it is certified as corrected, so an old date can mean an unresolved condition or a repair that was never certified.
- 2026-04-20
- 2025-11-13
- 2025-11-13
- 2025-11-13
- 2024-10-07
- 2024-06-06
- Class C · 3 open · penalty 45 · (15/ea)
- Class I · 1 open · penalty 1 · (1/ea)
- Class B · 3 open · penalty 15 · (5/ea)
- Class A · 2 open · penalty 2 · (1/ea)
- 2026-05-13 · Apt 1C · IMMEDIATE EMERGENCY · PAINT/PLASTER
- 2026-05-13 · Apt 1C · EMERGENCY · UNSANITARY CONDITION
- 2026-05-13 · Apt 1C · NON EMERGENCY · FLOORING/STAIRS
- 2009-01-01
- 2008-01-03
- 1997-09-16
5 lead-paint hazards cited and later remediated (most recent 2018); no open hazards on record. Remediation addresses the cited conditions, not necessarily every painted surface.
Under NYC Local Law 1 (Admin Code §27-2056.5), lead paint is presumed present in common areas and in apartments where a child under 6 resides, in multiple dwellings built before 1960 (this building: built 1931). The presumption stands unless the owner obtained a lead-free or lead-safe exemption from HPD. Those exemption records aren’t published as open data, so we can’t confirm one either way.
The Building
Neighborhood & Environment
~1 block 300m
~2-3 blocks
- HARRASSMENT 2: 106
- PETIT LARCENY: 90
- ASSAULT 3 & RELATED OFFENSES: 64
- FELONY ASSAULT: 37
- GRAND LARCENY: 33
- Noise - Residential: 118
- Illegal Parking: 88
- HEAT/HOT WATER: 79
- UNSANITARY CONDITION: 38
- Rodent: 34
- 902 DEKALB AVENUE
- 853 LAFAYETTE AVE
- 148 LEWIS AVE
- P.S. 025 Eubie Blake School
- P.S. 304 Casimir Pulaski
- P.S. 081 Thaddeus Stevens
- P.S. 308 Clara Cardwell
- EMBER Charter School for Mindful Education, Innova
- Whitelaw Reid Academy of Arts and Business
- Frederick Douglass Academy IV Secondary School
- Myrtle Av
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- Grade A
- 79 Precinct Off-Street Parking
- Vernon Tandt Block Association
- Kosciuszko Street Garden
- 79th Precinct Parking
- Uta 656
- Tranquility Farm (Willoughby Ave. Garden)
Internet providers serving this area
Internet providers available in this area — including fiber:
- Verizon Fiber Up to 2,300 Mbps down · 2,300 Mbps up
- Optimum Cable Up to 940 Mbps down · 35 Mbps up
How to check internet providers before signing an NYC lease →
Source: FCC Broadband Data Collection (NY, rev. May 2026). Wired broadband only — cable + fiber. DSL, satellite, and fixed-wireless not included. Block-level data; actual availability may vary by building.
Market & Availability
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