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399 Kosciuszko Street is a walkup apartment building built in 1931 in Brooklyn with 12 residential units. It carries a Grade F health score, with 10 open Class C hazardous violations and a history of heat and hot water complaints among the recorded concerns. Our analysis reviewed 1,574 records across 26 public data sources, benchmarked against similar mid-sized prewar residential buildings in NYC.
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HEAT/HOT WATER — ENTIRE BUILDING [EMERGENCY] (Apt 3B)
Class C (Hazardous): § 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 1B, 1st STORY, 1st APARTMENT FROM WEST AT NORTH
HEAT/HOT WATER — ENTIRE BUILDING [EMERGENCY] (Apt 3C)
HEAT/HOT WATER — ENTIRE BUILDING [EMERGENCY] (Apt 4B)
HEAT/HOT WATER — ENTIRE BUILDING [EMERGENCY] (Apt 3B)
HEAT/HOT WATER — APARTMENT ONLY [EMERGENCY] (Apt 4C)
HEAT/HOT WATER — ENTIRE BUILDING [EMERGENCY] (Apt BLDG)
HEAT/HOT WATER — ENTIRE BUILDING [EMERGENCY] (Apt 4C)
HEAT/HOT WATER — APARTMENT ONLY [EMERGENCY] (Apt 2A)
HEAT/HOT WATER — ENTIRE BUILDING [EMERGENCY] (Apt 4C)
HEAT/HOT WATER — APARTMENT ONLY [EMERGENCY] (Apt 4B)
HEAT/HOT WATER — ENTIRE BUILDING [EMERGENCY] (Apt 4C)
Tax Year 2027 Market Value: $793,000 Exemptions: $356,850
Annual bedbug filing — no infestations reported
Tax Year 2026 Market Value: $806,000 Exemptions: $362,700
Initial (Job PC8649458)
ENTIRE BUILDING
APARTMENT ONLY
ENTIRE BUILDING
ENTIRE BUILDING
This report is an informational tool based on publicly available government records and does not constitute a “consumer report” under the Fair Credit Reporting Act. Building grades are editorial opinions and should not be used as the sole basis for housing, lending, or employment decisions. Data sourced from HPD, DOB, DOF, ECB, FDNY, 311, and other NYC agencies. Report errors to data@openstoop.com. See our Terms and Privacy Policy.