70 KOSCIUSZKO STREET
70 KOSCIUSZKO STREET is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3017830043) built in 1931, with 32 residential units across 3 floors.
The building is in NYC community district 303, council district 36, zoning district R6B, on a 10,000-square-foot lot with a building footprint of 21,990 square feet.
The current registered owner of record per NYC PLUTO is KO70 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 OfficerAron Karpen
- Corporate OwnerKO70 LLC
- Managing AgentLinen Lofts
- Site ManagerYehuda Fridman
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6B
- Lot size:
- 10,000 sqft
- Building area:
- 21,990 sqft
- Floors:
- 3
- Assessed value:
- $1.1M
- Community district:
- 303
- Council district:
- 36
HPD violations
Recent HPD violation details
- Class AInspected Mar 2, 2023§ 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…
- Class AInspected Dec 6, 2022§ 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…
- Class AInspected Dec 6, 2022§ 27-2104 ADM CODE POST AND MAINTAIN A PROPER SIGN ON WALL OF ENTRANCE STORY SHOWING THE REGISTRATION NUMBER ASSIGNED BY THE DEPARTMENT AND…
- Class AInspected Dec 6, 2022§ 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX SIGN…
- Class IInspected Oct 9, 2015SECTION27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE ?27-2097 AND IS THER…
Recent ACRIS activity
Frequently asked questions about 70 KOSCIUSZKO STREET
Who owns 70 KOSCIUSZKO STREET?
The current registered owner of record for 70 KOSCIUSZKO STREET per NYC PLUTO is KO70 LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 70 KOSCIUSZKO STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 70 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 70 KOSCIUSZKO STREET have?
No open HPD housing-maintenance code violations are on record for 70 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 70 KOSCIUSZKO STREET?
NYC Department of Finance assesses 70 KOSCIUSZKO STREET at $1.07M 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 70 KOSCIUSZKO STREET and what does that mean?
70 KOSCIUSZKO STREET is NYC building class C1 — Walk-up, over six families. A 3-to-6-story walk-up apartment building with more than 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.