4311 SEA GATE AVENUE
4311 SEA GATE AVENUE is a Class B1 (two-family brick) building in Brooklyn (BBL 3069710007) built in 1930, with 2 residential units across 2 floors.
The building is in NYC community district 313, council district 47, zoning district R3-1, on a 3,200-square-foot lot with a building footprint of 1,976 square feet.
The current registered owner of record per NYC PLUTO is ROSEMARK PARTNERS LLC.
The most recent ACRIS deed transfer for this BBL was recorded on November 12, 2025 when MARKMAN - REFEREE, STEPHEN R conveyed the property to ROSEMARK PARTNERS LLC for $587K. 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 2)
Building stats
- Zoning:
- R3-1
- Lot size:
- 3,200 sqft
- Building area:
- 1,976 sqft
- Floors:
- 2
- Assessed value:
- $48K
- Community district:
- 313
- Council district:
- 47
HPD violations
Recent HPD violation details
Recent ACRIS activity
Frequently asked questions about 4311 SEA GATE AVENUE
Who owns 4311 SEA GATE AVENUE?
The current registered owner of record for 4311 SEA GATE AVENUE per NYC PLUTO is ROSEMARK PARTNERS LLC. The most recent ACRIS deed transfer for this BBL was recorded on November 12, 2025 when the property was conveyed to ROSEMARK PARTNERS 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 4311 SEA GATE AVENUE last sold?
The most recent ACRIS deed transfer for 4311 SEA GATE AVENUE was recorded on November 12, 2025, when MARKMAN - REFEREE, STEPHEN R conveyed the property to ROSEMARK PARTNERS LLC for $587K. The transaction was recorded as cash (no paired mortgage instrument).
How many HPD violations does 4311 SEA GATE AVENUE have?
No open HPD housing-maintenance code violations are on record for 4311 SEA GATE AVENUE. 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 4311 SEA GATE AVENUE?
NYC Department of Finance assesses 4311 SEA GATE AVENUE at $48K 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 4311 SEA GATE AVENUE and what does that mean?
4311 SEA GATE AVENUE 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.