NY Property Records
21 Gates Ave
21 Gates Ave
Islip · Suffolk County
210 · ResidentialSold $215,785 · Oct 2019
Owner of record
OwnerWilliam O Donnell
Mailing address21 GATES AVE · BRENTWOOD, NY, 11717
Assessment · 2025 roll
Land assessed$9,400
Total assessed$28,500
Est. annual tax$6,344 (2024, excl. special districts)
Lot
Size0.45 acres
Services & districts
School districtBrentwood (472812)
Recorded sales · 2
Deed$215,785Oct 29, 2019
seller SANTOS PEREZ
buyer WILLIAM ODONNELL
Liber 13035, page 695
Deed$399,985Dec 10, 2018
seller SANTOS PEREZ
buyer ASSOCIATION FEDERAL NATIONAL MORTGAGE
Liber 12994, page 908
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13035 / 695
SBL05000750003000310000
Print key75.-3-31
SWIS472889
Parcel ID47288905000750003000310000
Who owns 21 Gates Ave?
21 Gates Ave, Islip is owned by William O Donnell per the 2025 NYS assessment roll. It last sold for $215,785 in Oct 2019.
Nearby on Gates 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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