NY Property Records
678 Johnson Ave
678 Johnson Ave
Islip · Suffolk County
210 · Residential
Owner of record
OwnerDominick & S Ducos (Le)
Mailing address678 JOHNSON AVE · RONKONKOMA, NY, 11779
Assessment · 2025 roll
Land assessed$12,400
Total assessed$34,600
Est. annual tax$9,193 (2024, excl. special districts)
Lot
Size0.38 acres
Services & districts
School districtConnetquot (472807)
Recorded sales · 1
Deedno price statedAug 21, 2023
seller DOMINICK M. DUCOS
buyer JUDITH SWEENEY
Liber 13218, page 679
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page13218 / 679
SBL05000610003000550000
Print key61.-3-55
SWIS472889
Parcel ID47288905000610003000550000
Who owns 678 Johnson Ave?
678 Johnson Ave, Islip is owned by Dominick & S Ducos (Le) per the 2025 NYS assessment roll.
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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