NY Property Records
21 Sunnyside Ave
21 Sunnyside Ave
Shelter Island · Suffolk County · 11964
$79,500Full market value311 · Vacant landSold $2,200,000 · Aug 2021
Owner of record
OwnerEstreich, Curran B
AlsoEstreich, Jonathan M
Mailing address7 Penn Plz Ste 1400 · New York, NY, 10001
Assessment · 2025 roll
Land assessed$79,500
Total assessed$79,500
Full market value$79,500
Est. annual tax$448 (2024, excl. special districts)
Lot
Size0.4 acres
Services & districts
WaterComm/public
SewerComm/public
UtilitiesElectric
School districtShelter Island (473201)
Recorded sales · 1
Deed$2,200,000Aug 5, 2021
seller ANTHONY MARANO
buyer CURRAN B. ESTREICH
Liber 13121, page 789
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13121 / 789
SBL00600000020180050000
Print key6.-2-18.5
SWIS473289
Parcel ID47328900600000020180050000
Who owns 21 Sunnyside Ave?
21 Sunnyside Ave, Shelter Island is owned by Estreich, Curran B per the 2025 NYS assessment roll. It last sold for $2,200,000 in Aug 2021.
Nearby on Sunnyside 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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