612 ONDERDONK AVENUE
612 ONDERDONK AVENUE is a Class C3 (walk-up, pre-1929) building in Queens (BBL 4034390038) built in 1930, with 4 residential units.
The current registered owner of record per NYC PLUTO is LEOPOLD HELEN.
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
- Site ManagerHELEN LEOPOLD
Most recent deed
Recent ACRIS documents (last 1)
Building stats
HPD violations
Recent HPD violation details
Recent ACRIS activity
Frequently asked questions about 612 ONDERDONK AVENUE
Who owns 612 ONDERDONK AVENUE?
The current registered owner of record for 612 ONDERDONK AVENUE per NYC PLUTO is LEOPOLD HELEN. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 612 ONDERDONK AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 612 ONDERDONK AVENUE 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 612 ONDERDONK AVENUE have?
No open HPD housing-maintenance code violations are on record for 612 ONDERDONK AVENUE 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 building class is 612 ONDERDONK AVENUE and what does that mean?
612 ONDERDONK AVENUE is NYC building class C3 — Walk-up, pre-1929. A walk-up apartment building constructed before 1929, typically 3-6 stories and often rent-stabilized. 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.