NY Property Records

440 Ontario St
Islip · Suffolk County

210 · Residential
Owner of record
OwnerRobert & Jane Gronberg
Mailing address440 ONTARIO ST · RONKONKOMA, NY, 11779
Assessment · 2025 roll
Land assessed$11,000
Total assessed$35,000
Est. annual tax$9,299 (2024, excl. special districts)
Lot
Size0.24 acres
Services & districts
School districtConnetquot (472807)
Recorded sales · 1
Deedno price statedFeb 6, 2025
seller ROBERT J. GRONBERG
buyer ROBERT & JANE GRONBERT TR
Liber 13294, page 548
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13294 / 548
SBL05000320002000810001
Print key32.-2-81.1
SWIS472889
Parcel ID47288905000320002000810001

Who owns 440 Ontario St?

440 Ontario St, Islip is owned by Robert & Jane Gronberg per the 2025 NYS assessment roll.
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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