NY Property Records
397 Johnson Ave
397 Johnson Ave
Islip · Suffolk County
210 · ResidentialSold $475,000 · Oct 2021
Owner of record
OwnerJohn Giallanza
Mailing address397 JOHNSON AVE · RONKONKOMA, NY, 11779
Assessment · 2025 roll
Land assessed$10,000
Total assessed$37,550
Est. annual tax$9,976 (2024, excl. special districts)
Lot
Size0.35 acres
Services & districts
School districtConnetquot (472807)
Recorded sales · 2
Deed$475,000Oct 14, 2021
seller JOANN ESTATE OF SIGNORE
buyer JOHN GIALLANZA
Liber 13136, page 770
Deedno price statedFeb 4, 2021
seller JO ANN SIGNORE
buyer JO ANN SIGNORE
Liber 13093, page 389
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13136 / 770
SBL05000600003000650000
Print key60.-3-65
SWIS472889
Parcel ID47288905000600003000650000
Who owns 397 Johnson Ave?
397 Johnson Ave, Islip is owned by John Giallanza per the 2025 NYS assessment roll. It last sold for $475,000 in Oct 2021.
Nearby on Johnson 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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