303 ONDERDONK AVENUE
303 ONDERDONK AVENUE is a Class C3 (walk-up, pre-1929) building in Queens (BBL 4033990012) built in 1930, with 4 residential units across 2 floors.
The building is in NYC community district 405, council district 34, zoning district R6B, on a 2,450-square-foot lot with a building footprint of 2,750 square feet.
The current registered owner of record per NYC PLUTO is 303 ONDERDONK AVE LLC.
The most recent ACRIS deed transfer for this BBL was recorded on June 18, 2025 when Kemp, Joel; Kemp-giaro, Monika; Giaro, Irena conveyed the property to 303 Onderdonk Ave Llc for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
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 OfficerMonika GiaroKemp
- Corporate Owner303 Onderdonk Ave LLC
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6B
- Lot size:
- 2,450 sqft
- Building area:
- 2,750 sqft
- Floors:
- 2
- Assessed value:
- $243K
- Community district:
- 405
- Council district:
- 34
HPD violations
Recent HPD violation details
- Class IInspected Nov 21, 2025§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 Jun 12, 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 AInspected Apr 16, 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 AInspected Mar 4, 2022(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 Mar 4, 2022§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…
Recent ACRIS activity
Frequently asked questions about 303 ONDERDONK AVENUE
Who owns 303 ONDERDONK AVENUE?
The current registered owner of record for 303 ONDERDONK AVENUE per NYC PLUTO is 303 ONDERDONK AVE LLC. The most recent ACRIS deed transfer for this BBL was recorded on June 18, 2025 when the property was conveyed to 303 Onderdonk Ave Llc. PLUTO ownership is refreshed monthly by NYC Department of Finance; the registered owner may not reflect transactions recorded within the last 30 days.
When was 303 ONDERDONK AVENUE last sold?
The most recent ACRIS deed transfer for 303 ONDERDONK AVENUE was recorded on June 18, 2025, when Kemp, Joel; Kemp-giaro, Monika; Giaro, Irena conveyed the property to 303 Onderdonk Ave Llc for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 303 ONDERDONK AVENUE have?
No open HPD housing-maintenance code violations are on record for 303 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 is the assessed value of 303 ONDERDONK AVENUE?
NYC Department of Finance assesses 303 ONDERDONK AVENUE at $243K 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 303 ONDERDONK AVENUE and what does that mean?
303 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.