NY Property Records
435 Riley Ave
435 Riley Ave
Southold · Suffolk County · 11952
$836,364Full market value210 · ResidentialSold $805,000 · Apr 2023
Owner of record
OwnerGildersleeve, William
Mailing address4 James Creek Landing · Mattituck, NY, 11952
Assessment · 2025 roll
Land assessed$700
Total assessed$4,600
Full market value$836,364
Est. annual tax$7,705 (2024, excl. special districts)
Lot
Size0.46 acres
Services & districts
WaterUnknown
SewerUnknown
UtilitiesUnknown
School districtMattituck-Cutchogue (473812)
Recorded sales · 3
Deed$805,000Apr 20, 2023
seller DANIEL J LAWLOR
buyer WILLIAM GILDERSLEEVE
Liber 13207, page 97
Deed$1Dec 10, 2021
seller TRUTEE OF THE HELEN DIANE E TREBLAY AS
buyer DANIEL J LAWLOR
Liber 13142, page 130
Deed$1Mar 4, 2021
seller Helen Janson
buyer Janson HR 2021 Irrv Trt
Liber 13107, page 323
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13207 / 97
SBL14300000040180000000
Print key143.-4-18
SWIS473889
Parcel ID47388914300000040180000000
Who owns 435 Riley Ave?
435 Riley Ave, Southold is owned by Gildersleeve, William per the 2025 NYS assessment roll. It last sold for $805,000 in Apr 2023.
Nearby on Riley 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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