NY Property Records
143 Ostrander Ave
143 Ostrander Ave
Riverhead · Suffolk County
$431,373Full market value210 · Residential
Owner of record
OwnerWiliams Sr, Jeffrey Slaney
AlsoWilliams Jr, Jeffrey S
Mailing addressPO Box 463 · Southold, NY, 11971
Assessment · 2025 roll
Land assessed$7,800
Total assessed$35,200
Full market value$431,373
Est. annual tax$7,802 (2024, excl. special districts)
Building
StyleOld style
Year built1856
Living area2,294 sq ft
Bedrooms4
Full baths1
HeatHot wtr/stm
FuelOil
Lot
Size0.25 acres
Services & districts
WaterComm/public
SewerUnknown
UtilitiesGas & elec
School districtRiverhead (473002)
Recorded sales · 2
Deed$1Mar 27, 2025
seller JEFFREY SLANEY WILLIAMS JR
buyer JEFFREY S WILLIAMS JR
Liber 13296, page 904
Deed$1Jan 30, 2024
seller JEFFREY S WILLIAMS
buyer JEFFREY S WILLIAMS JR
Liber 13243, page 284
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13296 / 904
SBL12900000030170000000
Print key129.-3-17
SWIS473000
Parcel ID47300012900000030170000000
Who owns 143 Ostrander Ave?
143 Ostrander Ave, Riverhead is owned by Wiliams Sr, Jeffrey Slaney per the 2025 NYS assessment roll.
Nearby on Ostrander 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
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