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NYC Building Records · BBL 3055920002

4121 FT HAMILTON PARKWAY

Brooklyn · Block 5592 · Lot 2 · Two-family + store (Class S2)

4121 FT HAMILTON PARKWAY is a Class S2 (two-family + store) building in Brooklyn (BBL 3055920002) built in 1930, with 3 residential units across 3 floors.

The building is in NYC community district 312, council district 39, zoning district R6, on a 2,026-square-foot lot with a building footprint of 3,480 square feet.

The current registered owner of record per NYC PLUTO is HAMILTON 41 ESTATE LLC.

The most recent ACRIS deed transfer for this BBL was recorded on July 31, 2025 when CASTRONOVO, ANNA MARIE; CASTRONOVO, JOHN V conveyed the property to HAMILTON 41 ESTATE LLC for $1.75M. 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

HAMILTON 41 ESTATE LLC

Most recent deed

Last transferred on Jul 31, 2025 for $1.8M to HAMILTON 41 ESTATE LLC.
Previous owner: CASTRONOVO, ANNA MARIE; CASTRONOVO, JOHN V
Cash sale: no recorded mortgage tied to this transfer.
🔒 See full deed history for this building →

Recent ACRIS documents (last 2)

DateTypeAmountParties
Jul 31, 2025DEED$1.8MParties redacted — full names in MetroDeeds Scout+
Jan 12, 2010DEEDNot disclosedParties redacted — full names in MetroDeeds Scout+
🔒 Unlock party names + multi-decade history →

Building stats

Units
3
Year built
1930
Class
S2
Borough
Brooklyn
Zoning:
R6
Lot size:
2,026 sqft
Building area:
3,480 sqft
Floors:
3
Assessed value:
$87K
Community district:
312
Council district:
39

HPD violations

0 open
No open violations on record. Source: NYC HPD.
🔒 See full violation history →

Recent HPD violation details

No open HPD violations recorded for this building.

Recent ACRIS activity

2 documents in the last 5 years (most recent Jul 31, 2025).

Frequently asked questions about 4121 FT HAMILTON PARKWAY

Who owns 4121 FT HAMILTON PARKWAY?

The current registered owner of record for 4121 FT HAMILTON PARKWAY per NYC PLUTO is HAMILTON 41 ESTATE LLC. The most recent ACRIS deed transfer for this BBL was recorded on July 31, 2025 when the property was conveyed to HAMILTON 41 ESTATE 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 4121 FT HAMILTON PARKWAY last sold?

The most recent ACRIS deed transfer for 4121 FT HAMILTON PARKWAY was recorded on July 31, 2025, when CASTRONOVO, ANNA MARIE; CASTRONOVO, JOHN V conveyed the property to HAMILTON 41 ESTATE LLC for $1.75M. The transaction was recorded as cash (no paired mortgage instrument).

How many HPD violations does 4121 FT HAMILTON PARKWAY have?

No open HPD housing-maintenance code violations are on record for 4121 FT HAMILTON PARKWAY. 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 4121 FT HAMILTON PARKWAY?

NYC Department of Finance assesses 4121 FT HAMILTON PARKWAY at $87K 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 4121 FT HAMILTON PARKWAY and what does that mean?

4121 FT HAMILTON PARKWAY is NYC building class S2 — Two-family + store. A two-family dwelling with one store unit. 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.

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