734 LEONARD STREET
734 LEONARD STREET is a Class C1 (walk-up, over six families) building in Brooklyn (BBL 3025750052) built in 1928, with 8 residential units across 4 floors.
The building is in NYC community district 301, council district 33, zoning district R6B, on a 2,500-square-foot lot with a building footprint of 6,000 square feet.
The current registered owner of record per NYC PLUTO is KOROS, ADAM.
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
- Managing AgentADAM KOROS
Most recent deed
Recent ACRIS documents (last 1)
Building stats
- Zoning:
- R6B
- Lot size:
- 2,500 sqft
- Building area:
- 6,000 sqft
- Floors:
- 4
- Assessed value:
- $878K
- Community district:
- 301
- Council district:
- 33
HPD violations
Recent HPD violation details
- Class AInspected Jun 10, 2025(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
- Class IInspected Nov 27, 2024§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class AInspected Apr 10, 2024(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD…
- Class IInspected Nov 21, 2023§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE…
- Class CInspected Mar 17, 2023§ 27-2044 ADM CODE REPLACE OR REPAIR THE SELF-CLOSING THE DOORS THAT IS MISSING OR DEFECTIVE APARTMENT IN THE ENTRANCE LOCATED AT APT 2R, 2n…
Recent ACRIS activity
Other buildings in this portfolio
- 192 GREENPOINT AVENUE33 violations
- 136 GUERNSEY STREET10 violations
Frequently asked questions about 734 LEONARD STREET
Who owns 734 LEONARD STREET?
The current registered owner of record for 734 LEONARD STREET per NYC PLUTO is KOROS, ADAM. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 734 LEONARD STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 734 LEONARD 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 734 LEONARD STREET have?
No open HPD housing-maintenance code violations are on record for 734 LEONARD 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 734 LEONARD STREET?
NYC Department of Finance assesses 734 LEONARD STREET at $878K 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 734 LEONARD STREET and what does that mean?
734 LEONARD 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.