545 WILLIAMS AVENUE
545 WILLIAMS AVENUE is a Class C4 (walk-up, three families) building in Brooklyn (BBL 3038360021) built in 1930, with 4 residential units across 2 floors.
The building is in NYC community district 305, council district 42, zoning district R6, on a 2,500-square-foot lot with a building footprint of 3,198 square feet.
The current registered owner of record per NYC PLUTO is O'CONNOR, CARLTON.
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 ManagerCARLTON O'CONNOR
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6
- Lot size:
- 2,500 sqft
- Building area:
- 3,198 sqft
- Floors:
- 2
- Assessed value:
- $149K
- Community district:
- 305
- Council district:
- 42
HPD violations
Recent HPD violation details
- Class AInspected May 6, 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 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 AInspected Jun 11, 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 26, 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 12, 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…
Recent ACRIS activity
Frequently asked questions about 545 WILLIAMS AVENUE
Who owns 545 WILLIAMS AVENUE?
The current registered owner of record for 545 WILLIAMS AVENUE per NYC PLUTO is O'CONNOR, CARLTON. MetroDeeds shows no confirmed ACRIS deed transfer for this BBL in the last 5 years of recorded NYC public-records data.
When was 545 WILLIAMS AVENUE last sold?
MetroDeeds shows no confirmed ACRIS deed transfer for 545 WILLIAMS 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 545 WILLIAMS AVENUE have?
No open HPD housing-maintenance code violations are on record for 545 WILLIAMS 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 545 WILLIAMS AVENUE?
NYC Department of Finance assesses 545 WILLIAMS AVENUE at $149K 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 545 WILLIAMS AVENUE and what does that mean?
545 WILLIAMS AVENUE is NYC building class C4 — Walk-up, three families. A 3-to-6-story walk-up apartment building with 3 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.