NY Property Records
843 Belmore Ave
843 Belmore Ave
Islip · Suffolk County
311 · Vacant land
Owner of record
OwnerWilliam Thornewell Family Trst
Mailing address243 AMITYVILLE ST · ISLIP TERRACE, NY, 11752
Assessment · 2025 roll
Land assessed$6,150
Total assessed$6,150
Est. annual tax$1,600 (2024, excl. special districts)
Lot
Size0.37 acres
Services & districts
School districtEast Islip (472803)
Recorded sales · 1
Deedno price statedApr 24, 2019
seller WILLIAM R. THORNEWELL
buyer WILLIAM R. THORNEWELL, II, TRUSTEE
Liber 13022, page 259
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13022 / 259
SBL05002310001000190003
Print key231.-1-19.3
SWIS472889
Parcel ID47288905002310001000190003
Who owns 843 Belmore Ave?
843 Belmore Ave, Islip is owned by William Thornewell Family Trst per the 2025 NYS assessment roll.
Nearby on Belmore Ave
Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it. Disclaimer · Request redaction
Search by name or address · Browse all records