510 WILLOUGHBY AVENUE
510 WILLOUGHBY AVENUE is a Class C0 (walk-up, 3+ families) building in Brooklyn (BBL 3017660041) built in 1899, with 3 residential units across 3 floors.
The building is in NYC community district 303, council district 36, zoning district R6B, on a 1,933-square-foot lot with a building footprint of 3,324 square feet.
The current registered owner of record per NYC PLUTO is HIRSCH, YIDEL.
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 OfficerYidel Hirsch
- Corporate Owner510 Willoughby Ave LLC
- Site ManagerJoel Hirsch
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6B
- Lot size:
- 1,933 sqft
- Building area:
- 3,324 sqft
- Floors:
- 3
- Assessed value:
- $113K
- Community district:
- 303
- Council district:
- 36
HPD violations
Recent HPD violation details
- Class IInspected Nov 18, 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 IInspected Nov 25, 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 Mar 27, 2023(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 7, 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…
- Class AInspected Apr 13, 2021(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…
Recent ACRIS activity
Other buildings in this portfolio
- 45 FRANKLIN STREET18 violations
Frequently asked questions about 510 WILLOUGHBY AVENUE
Who owns 510 WILLOUGHBY AVENUE?
The current registered owner of record for 510 WILLOUGHBY AVENUE per NYC PLUTO is HIRSCH, YIDEL. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 510 WILLOUGHBY AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 510 WILLOUGHBY 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 510 WILLOUGHBY AVENUE have?
No open HPD housing-maintenance code violations are on record for 510 WILLOUGHBY 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 510 WILLOUGHBY AVENUE?
NYC Department of Finance assesses 510 WILLOUGHBY AVENUE at $113K 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 510 WILLOUGHBY AVENUE and what does that mean?
510 WILLOUGHBY AVENUE is NYC building class C0 — Walk-up, 3+ families. A 3-to-6-story walk-up apartment building (no elevator), 3 or more 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.