× Home › Property records › Suffolk County › Smithtown › White Birch La › 21 White Birch La21 White Birch LaSmithtown · Suffolk County · 11725 $537,500 Full market value 210 · Residential OpenValue $708,046 ▾
Owner of record
Owner Costello, Erik
Also Costello, Stacey
Mailing address 21 White Birch La · Commack, NY, 11725
Assessment · 2025 roll
Land assessed $300
Total assessed $4,300
Full market value $537,500
Est. annual tax $10,545 (2024, excl. special districts)
Building
Style Split level
Year built 1956
Living area 1,315 sq ft
Bedrooms 3
Full baths 2
Heat Hot wtr/stm
Fuel Oil
Services & districts
Water Comm/public
Sewer Private
Utilities Electric
School district Commack (472610)
Deed & identifiers
SBL 09100000030350000000
Print key 91.-3-35
SWIS 473489
Parcel ID 47348909100000030350000000
Who owns 21 White Birch La? 21 White Birch La, Smithtown is owned by Costello, Erik per the 2025 NYS assessment roll.
Copy link to this record
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