× Home › Property records › Suffolk County › Shelter Island › Winthrop Rd › 56 Winthrop Rd56 Winthrop RdShelter Island · Suffolk County · 11964 $5,140,000 Full market value 210 · Residential OpenValue $3,584,566 ▾
Owner of record
Owner De Dalmas, Guillaume
Also De Dalmas, Renata W
Mailing address PO Box 1059 · Shelter Island Hgts, NY, 119651059
Assessment · 2025 roll
Land assessed $1,013,000
Total assessed $5,140,000
Full market value $5,140,000
Est. annual tax $26,191 (2024, excl. special districts)
Building
Style Colonial
Year built 2003
Living area 5,052 sq ft
Bedrooms 3
Full baths 4
Heat Hot air
Fuel Oil
Services & districts
Water Private
Sewer Private
Utilities Electric
School district Shelter Island (473201)
Deed & identifiers
SBL 00200000010070000000
Print key 2.-1-7
SWIS 473289
Parcel ID 47328900200000010070000000
Who owns 56 Winthrop Rd? 56 Winthrop Rd, Shelter Island is owned by De Dalmas, Guillaume per the 2025 NYS assessment roll.
Copy link to this record
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