891 MONTGOMERY STREET
891 MONTGOMERY STREET is a Class B1 (two-family brick) building in Brooklyn (BBL 3014180065) built in 1920, with 2 residential units across 2 floors.
The building is in NYC community district 309, council district 35, zoning district R7-1, on a 3,385-square-foot lot with a building footprint of 3,248 square feet.
The current registered owner of record per NYC PLUTO is KUPFER, YAKOV.
The most recent ACRIS deed transfer for this BBL was recorded on August 28, 2025 when GEFFRARD, YARLIE; GEFFRARD, GERARD conveyed the property to WOLOWIK, MUSHKA; KUPFER, YAKOV for $1.98M. The transaction was financed with a $1.48M mortgage from Mers.
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
Most recent deed
Activity timeline
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R7-1
- Lot size:
- 3,385 sqft
- Building area:
- 3,248 sqft
- Floors:
- 2
- Assessed value:
- $96K
- Community district:
- 309
- Council district:
- 35
HPD violations
Recent HPD violation details
- Class CInspected Oct 25, 2004SECTION 27-2031 ADMIN. CODE: PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 2FL, 2nd STORY
- Class CInspected May 22, 2003SECTION 27-2005 ADMIN. CODE: REMOVE THE ILLEGAL FASTENING DOUBLE CYLINDER KEY OPERATED LOCK INSTALLED AT ENTRANCE DOOR TO BOILDING AT FRONT…
- Class CInspected May 13, 2003SECTION 27-2005 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF NO ELECTRIC SUPPLY IN THE ENTIRE APARTMENT LOCATED AT APT 2, 2nd STORY, 2nd AP…
Recent ACRIS activity
Frequently asked questions about 891 MONTGOMERY STREET
Who owns 891 MONTGOMERY STREET?
The current registered owner of record for 891 MONTGOMERY STREET per NYC PLUTO is KUPFER, YAKOV. The most recent ACRIS deed transfer for this BBL was recorded on August 28, 2025 when the property was conveyed to WOLOWIK, MUSHKA; KUPFER, YAKOV. 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 891 MONTGOMERY STREET last sold?
The most recent ACRIS deed transfer for 891 MONTGOMERY STREET was recorded on August 28, 2025, when GEFFRARD, YARLIE; GEFFRARD, GERARD conveyed the property to WOLOWIK, MUSHKA; KUPFER, YAKOV for $1.98M. The transaction was financed with a $1.48M mortgage from Mers.
How many HPD violations does 891 MONTGOMERY STREET have?
No open HPD housing-maintenance code violations are on record for 891 MONTGOMERY STREET. The building is not registered with NYC HPD's landlord-registration system, which is typical for owner-occupied 1-2 family dwellings. HPD violation data is pulled daily from the NYC Open Data violations feed.
What is the assessed value of 891 MONTGOMERY STREET?
NYC Department of Finance assesses 891 MONTGOMERY STREET at $96K 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 891 MONTGOMERY STREET and what does that mean?
891 MONTGOMERY STREET is NYC building class B1 — Two-family brick. A two-family residential building of brick construction, typically owner-occupied. 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.