718 UNION STREET
718 UNION STREET is a Class C0 (walk-up, 3+ families) building in Brooklyn (BBL 3009560022) built in 1899, with 3 residential units across 2 floors.
The building is in NYC community district 306, council district 39, zoning district R6A, on a 1,686-square-foot lot with a building footprint of 2,295 square feet.
The current registered owner of record per NYC PLUTO is SEMBLER, MADISON.
The most recent ACRIS deed transfer for this BBL was recorded on May 6, 2024 when ZIMMERMANN, MARK M conveyed the property to SEMBLER, MADISON for $2.70M. The transaction was recorded as cash (no paired mortgage instrument).
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
Recent ACRIS documents (last 3)
Building stats
- Zoning:
- R6A
- Lot size:
- 1,686 sqft
- Building area:
- 2,295 sqft
- Floors:
- 2
- Assessed value:
- $175K
- Community district:
- 306
- Council district:
- 39
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 19, 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 IInspected Nov 20, 2023§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 718 UNION STREET
Who owns 718 UNION STREET?
The current registered owner of record for 718 UNION STREET per NYC PLUTO is SEMBLER, MADISON. The most recent ACRIS deed transfer for this BBL was recorded on May 6, 2024 when the property was conveyed to SEMBLER, MADISON. 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 718 UNION STREET last sold?
The most recent ACRIS deed transfer for 718 UNION STREET was recorded on May 6, 2024, when ZIMMERMANN, MARK M conveyed the property to SEMBLER, MADISON for $2.70M. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 718 UNION STREET have?
No open HPD housing-maintenance code violations are on record for 718 UNION 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 718 UNION STREET?
NYC Department of Finance assesses 718 UNION STREET at $175K 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 718 UNION STREET and what does that mean?
718 UNION STREET 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.