NY Property Records
1345 Madison Ave
1345 Madison Ave
Islip · Suffolk County
210 · ResidentialSold $675,000 · Nov 2025
Owner of record
OwnerBrett C Portera &
Mailing address1345 MADISON AVE · WEST ISLIP, NY, 11795
Assessment · 2025 roll
Land assessed$6,900
Total assessed$35,500
Est. annual tax$9,574 (2024, excl. special districts)
Lot
Size0.09 acres
Services & districts
School districtWest Islip (472809)
Recorded sales · 3
Deed$675,000Nov 3, 2025
seller BRETT CHRISTOPHER PORTERA
buyer TIMOTHY DREW
Liber 13322, page 844
Deed$535,000Jun 22, 2023
seller JEFFREY HELSINGER
buyer BRETT PORTERA
Liber 13222, page 547
Deed$368,000Feb 14, 2023
seller JOHN BELLO
buyer JEFFREY HELSINGER
Liber 13202, page 515
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13222 / 547
SBL05003620003000980000
Print key362.-3-98
SWIS472889
Parcel ID47288905003620003000980000
Who owns 1345 Madison Ave?
1345 Madison Ave, Islip is owned by Brett C Portera & per the 2025 NYS assessment roll. It last sold for $675,000 in Nov 2025.
Nearby on Madison 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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