70 WILLIAMS AVENUE
70 WILLIAMS AVENUE is a Class C0 (walk-up, 3+ families) building in Brooklyn (BBL 3036820042) built in 1901, with 3 residential units across 2 floors.
The building is in NYC community district 305, council district 37, zoning district M1-4, on a 1,558-square-foot lot with a building footprint of 1,962 square feet.
The current registered owner of record per NYC PLUTO is 70 WILLIAMS LLC.
The most recent ACRIS deed transfer for this BBL was recorded on October 28, 2021 when OSTREICHER, JACOB conveyed the property to 70 WILLIAMS 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 OfficerJACOB OSTREICHER
- Corporate Owner70 WILLIAMS LLC
- Managing AgentMARK HALPERN
Most recent deed
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- M1-4
- Lot size:
- 1,558 sqft
- Building area:
- 1,962 sqft
- Floors:
- 2
- Assessed value:
- $46K
- Community district:
- 305
- Council district:
- 37
HPD violations
Recent HPD violation details
- Class CInspected Dec 29, 1999§ 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF no heat defective equiptment IN THE 1st ENTIRE APARTMENT FROM EAST, 2nd ST…
Recent ACRIS activity
Frequently asked questions about 70 WILLIAMS AVENUE
Who owns 70 WILLIAMS AVENUE?
The current registered owner of record for 70 WILLIAMS AVENUE per NYC PLUTO is 70 WILLIAMS LLC. The most recent ACRIS deed transfer for this BBL was recorded on October 28, 2021 when the property was conveyed to 70 WILLIAMS 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 70 WILLIAMS AVENUE last sold?
The most recent ACRIS deed transfer for 70 WILLIAMS AVENUE was recorded on October 28, 2021, when OSTREICHER, JACOB conveyed the property to 70 WILLIAMS LLC for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 70 WILLIAMS AVENUE have?
No open HPD housing-maintenance code violations are on record for 70 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 70 WILLIAMS AVENUE?
NYC Department of Finance assesses 70 WILLIAMS AVENUE at $46K 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 70 WILLIAMS AVENUE and what does that mean?
70 WILLIAMS 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.