Owner of record
OwnerWm & Dianne Connaughton
Mailing address31 BOULEVARD AVE · WEST ISLIP, NY, 11795
Recorded sales · 1
Deed$908,000Jan 9, 2026
seller WILLIAM CONNAUGHTON
buyer MARK FORIS
Liber 13325, page 138
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Who owns 31 Boulevard Ave?
31 Boulevard Ave, Islip is owned by Wm & Dianne Connaughton per the 2025 NYS assessment roll. It last sold for $908,000 in Jan 2026.
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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