NY Property Records
1623 Washington Ave
1623 Washington Ave
Islip · Suffolk County
210 · ResidentialSold $765,000 · Oct 2025
Owner of record
OwnerDouglas & Lisa Karlsen
Mailing address1623 WASHINGTON AVE · BOHEMIA, NY, 11716
Assessment · 2025 roll
Land assessed$12,500
Total assessed$50,000
Est. annual tax$13,284 (2024, excl. special districts)
Lot
Size0.5 acres
Services & districts
School districtConnetquot (472807)
Recorded sales · 1
Deed$765,000Oct 3, 2025
seller DOUGLAS KARLSEN
buyer BRADLEY YOUNG
Liber 13316, page 449
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page12348 / 952
SBL05001700002000010000
Print key170.-2-1
SWIS472889
Parcel ID47288905001700002000010000
Who owns 1623 Washington Ave?
1623 Washington Ave, Islip is owned by Douglas & Lisa Karlsen per the 2025 NYS assessment roll. It last sold for $765,000 in Oct 2025.
Nearby on Washington 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
Search by name or address · Browse all records