The Land Records Viewer allows access to almost all information maintained by the Department of Assessment including assessment roll data, district information, tax maps, property photographs, past taxes, tax rates, exemptions with amounts and comparable sales.

(do not include directional (i.e. N, South etc.) and do not include artery (Rd., Street, Ave. etc.)

Mike is a native of Nassau County, who prior to being elected, spent the past 35 years as a State Certified Appraiser and Real Estate Broker. State Certified in 1992, he has personally appraised over 10,000 properties throughout Nassau County.

Welcome to our new Parcel Property Search Page! We have updated our search/lookup tool. Our new search tool is live and has up-to-date sales and ownership information. Please use it for your search needs.

The Nassau County Clerk's Office preserves and protects land records and provides a wide range of services to the public in a professional and courteous manner. This on-line service has been added for your convenience.

Collecting and recording relevant residential, commercial, and industrial property information. Validating building permits by confirming all new construction and including the new value on the next assessment roll.

Look up property assessments online. Nassau County Clerk's Office. The Clerk's Office provides property-related services and forms, including:

Property Assessments Assessment Lookup How to Challenge Your Assessment Assessment Challenge Forms & Instructions Assessment Review Calendar Rules of Procedure (PDF) Information for Property Owners . Nassau County Tax Lien Sale Annual Tax Lien Sale Public Notice . Property Taxes-Assessment How is My Property Tax Determined? Property …

If you are seeking a Tax Map Verification Letter for a newly apportioned parcel, please contact Nassau County Assessment at [email protected] for assistance. To have ACH enabled on your account(s) please fill out …

For best results, search by one of the three methods listed for the property search: Parcel Number