423 9 STREET
423 9 STREET is a Class B3 (two-family converted) building in Brooklyn (BBL 3010060052) built in 1899, with 2 residential units across 2 floors.
The building is in NYC community district 306, council district 39, zoning district R6B, on a 1,500-square-foot lot with a building footprint of 2,400 square feet.
The current registered owner of record per NYC PLUTO is AMY JO STACK 2025 REVOCABLE LIVING TRUST.
The most recent ACRIS deed transfer for this BBL was recorded on November 5, 2025 when STACK, AMY conveyed the property to AMY JO STACK - TRUSTEE; AMY JO STACK 2025 REVOCABLE LIVING TRUST for a non-disclosed consideration. 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
Activity timeline
Recent ACRIS documents (last 5)
Building stats
- Zoning:
- R6B
- Lot size:
- 1,500 sqft
- Building area:
- 2,400 sqft
- Floors:
- 2
- Assessed value:
- $177K
- Community district:
- 306
- Council district:
- 39
HPD violations
Recent HPD violation details
Recent ACRIS activity
Frequently asked questions about 423 9 STREET
Who owns 423 9 STREET?
The current registered owner of record for 423 9 STREET per NYC PLUTO is AMY JO STACK 2025 REVOCABLE LIVING TRUST. The most recent ACRIS deed transfer for this BBL was recorded on November 5, 2025 when the property was conveyed to AMY JO STACK - TRUSTEE; AMY JO STACK 2025 REVOCABLE LIVING TRUST. 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 423 9 STREET last sold?
The most recent ACRIS deed transfer for 423 9 STREET was recorded on November 5, 2025, when STACK, AMY conveyed the property to AMY JO STACK - TRUSTEE; AMY JO STACK 2025 REVOCABLE LIVING TRUST for a non-disclosed consideration. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 423 9 STREET have?
No open HPD housing-maintenance code violations are on record for 423 9 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 423 9 STREET?
NYC Department of Finance assesses 423 9 STREET at $177K 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 423 9 STREET and what does that mean?
423 9 STREET is NYC building class B3 — Two-family converted. A two-family dwelling that was converted from a one-family. 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.