× Home › Property records › Suffolk County › Riverhead › River Ave › 42 River Ave42 River AveRiverhead · Suffolk County $479,167 Full market value 210 · Residential OpenValue $670,972 ▾
Owner of record
Owner Demarest, John P
Also Demarest, Xiaoxia
Mailing address 42 River Ave · Riverhead, NY, 11901
Assessment · 2025 roll
Land assessed $6,400
Total assessed $39,100
Full market value $479,167
Est. annual tax $5,986 (2024, excl. special districts)
Building
Style Cape cod
Year built 1950
Living area 1,840 sq ft
Bedrooms 4
Full baths 1
Heat Hot wtr/stm
Fuel Oil
Lot
Size 0.2 acres
Frontage × depth 60 × 150 ft
Services & districts
Water Comm/public
Sewer Unknown
Utilities Electric
School district Riverhead (473002)
Deed & identifiers
Deed book / page 12392 / 289
SBL 13000000040230000000
Print key 130.-4-23
SWIS 473000
Parcel ID 47300013000000040230000000
Who owns 42 River Ave? 42 River Ave, Riverhead is owned by Demarest, John P per the 2025 NYS assessment roll.
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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.
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