638 KOSCIUSZKO STREET
638 KOSCIUSZKO STREET is a Class C2 (walk-up, five to six) building in Brooklyn (BBL 3032520015) built in 1931, with 6 residential units across 3 floors.
The building is in NYC community district 304, council district 34, zoning district R6, on a 2,469-square-foot lot with a building footprint of 4,500 square feet.
The current registered owner of record per NYC PLUTO is 638 ADAR LLC.
MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
The building is registered with NYC HPD's landlord-registration system and has no open HPD housing-maintenance code violations on record as of May 18, 2026.
Data sourced daily from NYC PLUTO (Department of City Planning), NYC ACRIS (Department of Finance), and NYC HPD housing-maintenance code violations.
Owner of record
HPD registered contacts
- Head OfficerSTEVEN GOLDSCHMIED
- Corporate Owner638 ADAR LLC
- Managing AgentYHT MANAGEMENT
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6
- Lot size:
- 2,469 sqft
- Building area:
- 4,500 sqft
- Floors:
- 3
- Assessed value:
- $499K
- Community district:
- 304
- Council district:
- 34
HPD violations
Recent HPD violation details
- Class CInspected May 25, 2022§ 27-2005, 2006, 2037 HMC: PROPERLY REPAIR AND ABATE UNSAFE ELECTRIC WIRING CONDITION CONSISTING OF EXPOSED WIRING AT CEILING AT PUBLIC HALL…
- Class CInspected May 25, 2022§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RATED MATERIAL AT WEST WALL AT SCUTTLE OPEINING AT PUB…
- Class AInspected May 25, 2022§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT THE WEST WALL AT SCUTTLE OPEINING AT PUBLIC HALL, 3…
- Class CInspected May 25, 2022§ 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO H…
- Class AInspected May 25, 2022§ 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES…
Recent ACRIS activity
Frequently asked questions about 638 KOSCIUSZKO STREET
Who owns 638 KOSCIUSZKO STREET?
The current registered owner of record for 638 KOSCIUSZKO STREET per NYC PLUTO is 638 ADAR LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 638 KOSCIUSZKO STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 638 KOSCIUSZKO STREET in the last 5 years of recorded NYC public-records data. NYC ACRIS coverage extends back to 1966; an absence in our 5-year window typically means either the BBL has not transacted recently, or the most recent recorded document is not a DEED type (such as a refinance rather than a sale).
How many HPD violations does 638 KOSCIUSZKO STREET have?
No open HPD housing-maintenance code violations are on record for 638 KOSCIUSZKO STREET as of May 18, 2026. The building is registered with NYC HPD's landlord-registration system. HPD violation data is pulled daily from the NYC Open Data violations feed.
What is the assessed value of 638 KOSCIUSZKO STREET?
NYC Department of Finance assesses 638 KOSCIUSZKO STREET at $499K for the current tax year. NYC assesses property at a fraction of estimated market value (the assessment ratio varies by tax class — 6% for tax class 1 one-to-three-family dwellings, approximately 45% for tax class 2 rental apartment buildings), so the market value implied by this assessment is meaningfully higher. Assessment data is published by NYC Department of Finance.
What building class is 638 KOSCIUSZKO STREET and what does that mean?
638 KOSCIUSZKO STREET is NYC building class C2 — Walk-up, five to six. A 3-to-6-story walk-up apartment building, 5-6 residential units. Building class is assigned by NYC Department of Finance and recorded in PLUTO; it determines the property's tax class and the regulatory regime that applies.