What is the property tax for 517 Sylvan Ave?

The estimated annual property tax for 517 Sylvan Ave is $15,951 (2024, excluding special districts), computed from taxable values and published rates.

NY Property Records

517 Sylvan Ave
Islip · Suffolk County

Q: Who owns 517 Sylvan Ave?

517 Sylvan Ave is owned by Nathan A Gryszowka & per the 2025 NYS assessment roll.

210 · Residential

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Owner of record

OwnerNathan A Gryszowka &

Mailing address517 SYLVAN AVE · BAYPORT, NY, 11705

Assessment · 2025 roll

Land assessed$14,250

Total assessed$48,000

Est. annual tax$15,951 (2024, excl. special districts)

Lot

Size0.45 acres

Services & districts

School districtBayport-Blue Point (472805)

Deed & identifiers

Deed book / page12807 / 929

SBL05003100002000050004

Print key310.-2-5.4

SWIS472889

Parcel ID47288905003100002000050004

Who owns 517 Sylvan Ave?

517 Sylvan Ave, Islip is owned by Nathan A Gryszowka & per the 2025 NYS assessment roll.

Nearby on Sylvan Ave

518 Sylvan Ave · 519 Sylvan Ave · 513 Sylvan Ave · 508 Sylvan Ave · 528 Sylvan Ave · 529 Sylvan Ave · 503 Sylvan Ave · 502 Sylvan Ave · 500 Sylvan Ave · 498 Sylvan 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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