NY Property Records
321 Ontario St
321 Ontario St
Islip · Suffolk County
210 · Residential
Owner of record
OwnerMelinda K Monahan
Mailing address321 ONTARIO ST · RONKONKOMA, NY, 11779
Assessment · 2025 roll
Land assessed$11,100
Total assessed$43,000
Est. annual tax$11,424 (2024, excl. special districts)
Lot
Size0.25 acres
Services & districts
School districtConnetquot (472807)
Recorded sales · 1
Deedno price statedJun 12, 2018
seller SEAN J. MONAHAN
buyer MELIDA K. MONAHAN
Liber 12970, page 574
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page12970 / 574
SBL05000310004000780000
Print key31.-4-78
SWIS472889
Parcel ID47288905000310004000780000
Who owns 321 Ontario St?
321 Ontario St, Islip is owned by Melinda K Monahan per the 2025 NYS assessment roll.
Nearby on Ontario St
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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