× Home › Property records › Suffolk County › Riverhead › St Marys Dr › 11 St Marys Dr11 St Marys DrRiverhead · Suffolk County $768,382 Full market value 210 · Residential OpenValue $1,405,580 ▾
Owner of record
Owner Cosgrove, Peter Jr
Also Cosgrove, Amy
Mailing address PO Box 388 · S Jamesport, NY, 11970
Assessment · 2025 roll
Land assessed $12,500
Total assessed $62,700
Full market value $768,382
Est. annual tax $13,896 (2024, excl. special districts)
Building
Style Colonial
Year built 1987
Living area 2,848 sq ft
Bedrooms 4
Full baths 2
Heat Hot wtr/stm
Fuel Oil
Services & districts
Water Private
Sewer Unknown
Utilities Electric
School district Riverhead (473002)
Deed & identifiers
SBL 06900000030350010000
Print key 69.-3-35.1
SWIS 473000
Parcel ID 47300006900000030350010000
Who owns 11 St Marys Dr? 11 St Marys Dr, Riverhead is owned by Cosgrove, Peter Jr 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