NY Property Records
454 Sylvan Ave
454 Sylvan Ave
Islip · Suffolk County
210 · ResidentialSold $659,000 · Oct 2019
Owner of record
OwnerBryan M Prosek &
Mailing address454 SYLVAN AVE · BAYPORT, NY, 11705
Assessment · 2025 roll
Land assessed$20,000
Total assessed$57,000
Est. annual tax$17,048 (2024, excl. special districts)
Lot
Size0.61 acres
Services & districts
School districtBayport-Blue Point (472805)
Recorded sales · 1
Deed$659,000Oct 18, 2019
seller WILLIAM J HANDY
buyer BRYAN M PROSEK
Liber 13035, page 124
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13035 / 124
SBL05003330004000330001
Print key333.-4-33.1
SWIS472889
Parcel ID47288905003330004000330001
Who owns 454 Sylvan Ave?
454 Sylvan Ave, Islip is owned by Bryan M Prosek & per the 2025 NYS assessment roll. It last sold for $659,000 in Oct 2019.
Nearby on Sylvan 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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