340 EAST 51 STREET
340 EAST 51 STREET is a Class C2 (walk-up, five to six) building in Brooklyn (BBL 3046760008) built in 1930, with 6 residential units across 3 floors.
The building is in NYC community district 317, council district 41, zoning district R5, on a 2,500-square-foot lot with a building footprint of 6,150 square feet.
The current registered owner of record per NYC PLUTO is 340 E 51 ST 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 17, 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 OfficerJOEL LEFKOWITZ
- Corporate Owner340 E 51 ST LLC
- Managing AgentGUARDEUM MANAGEMENT LLC
- Site ManagerMARTIN JACOBS
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R5
- Lot size:
- 2,500 sqft
- Building area:
- 6,150 sqft
- Floors:
- 3
- Assessed value:
- $287K
- Community district:
- 317
- Council district:
- 41
HPD violations
Recent HPD violation details
- Class AInspected May 4, 2026(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 CInspected Apr 6, 2026§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MIS…
- Class AInspected Apr 6, 2026§ 27-2005 ADM CODE REPLACE WITH NEW THE MISSING LIGHT SWITCH COVER PLATE IN THE FOYER LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT FROM SOUTH…
- Class AInspected Apr 6, 2026§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE DOOR IN THE 3rd ROOM FROM EAST AT SOUTH LOCATED AT APT 2R, 2nd STORY, 1st…
- Class AInspected Apr 6, 2026§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE DOOR IN THE 2nd ROOM FROM EAST LOCATED AT APT 2R, 2nd STORY, 1st APARTMENT…
Recent ACRIS activity
Frequently asked questions about 340 EAST 51 STREET
Who owns 340 EAST 51 STREET?
The current registered owner of record for 340 EAST 51 STREET per NYC PLUTO is 340 E 51 ST LLC. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 340 EAST 51 STREET last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 340 EAST 51 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 340 EAST 51 STREET have?
No open HPD housing-maintenance code violations are on record for 340 EAST 51 STREET as of May 17, 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 340 EAST 51 STREET?
NYC Department of Finance assesses 340 EAST 51 STREET at $287K 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 340 EAST 51 STREET and what does that mean?
340 EAST 51 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.