Search Nassau County, New York property records online using official county and town resources for owner lookup, address search, section-block-lot, assessment values, general and school taxes, open and paid taxes, recent sales, property descriptions, tax map verification, deeds, mortgages, satisfactions, liens, land records and parcel map research.
Need Nassau County Property Records Right Now?
Use Nassau County LandRecord Lookup when you need property values, general and school taxes, open and paid taxes, property description, recent sales, My Nassau Info and section-block-lot details.
Use the Nassau County Clerk land records portal when you need recorded documents such as deeds, mortgages, satisfactions, assignments, liens and other official land records. Use the correct town or city tax receiver when you need current property tax bill payment, receipts or balance details.
Where to Search Nassau County NY Property Records
Nassau County property research usually starts with LandRecord Lookup. This county tool helps you review values, taxes, open and paid taxes, recent sales, property description and My Nassau Info for a specific property.
If you need recorded legal documents, use the Nassau County Clerk land records system. If you need a current tax payment amount, receipt or bill payment help, use the correct receiver of taxes or city tax office for the property location.
| What You Need | Official Source | Best Search Method |
|---|---|---|
| Property values, taxes, sales and property description | Nassau County LandRecord Lookup | Search by address or section-block-lot, then review values, tax info, open and paid taxes, property description and recent sales. |
| Elected officials, districts and local property info | My Nassau Information Lookup | Enter address or SBL to find elected officials, road authority, school district, police precinct and fire district. |
| Tax map verification letter | Tax Map Verification Letter Request | Use when a tax map verification letter is required for a parcel or newly apportioned parcel issue. |
| Deeds, mortgages and official land records | Nassau County Clerk Land Records | Search recorded documents through the County Clerk land records system. |
| Tax bill payment and receipts | Town or city tax receiver | Use the property’s town or city tax receiver, such as Hempstead, Oyster Bay, North Hempstead, Long Beach or Glen Cove. |
| Statewide assessment and parcel resources | New York Real Property Resources | Use for property-owner assessment guidance, STAR and statewide tax information. |
| GIS parcel data and map context | New York State Parcels | Use GIS parcel data for planning and general research, not as a legal survey. |
Nassau County Property Records Free Lookup Step-by-Step
The fastest free lookup starts with Nassau County LandRecord Lookup. This is the best first stop when you only have an address and need to identify the property, taxes, values, sales and section-block-lot.
After you confirm the property identity, move to the County Clerk for recorded documents or the correct town/city tax receiver for current bill payment and receipts.
- Open LandRecord Lookup Go to Nassau County LandRecord Lookup.
- Search by address or SBL Use the property address if you do not know the tax map number. Use section-block-lot if you already have it from a bill, deed or prior record.
- Confirm the property record Check property values, general and school taxes, open and paid taxes, property description, recent sales and local district information.
- Save the section-block-lot Write down section, block and lot exactly as shown. This helps with tax bills, deeds, maps and town/city tax office questions.
- Use the correct follow-up office Use the County Clerk for deeds and mortgages. Use the town or city receiver of taxes for payment details and current tax receipts.
How to Find Section, Block, Lot and Property ID
Nassau County property records commonly use section, block and lot, often shortened as SBL. This identifier is important because many tax and land-record systems rely on it to identify the correct property.
Street addresses can be formatted differently across county, town and deed systems. The SBL is usually more reliable for matching the correct property record.
Best ways to find Nassau County section-block-lot
- Search Nassau County LandRecord Lookup by property address.
- Use My Nassau Information Lookup by address or SBL.
- Check your general tax bill, school tax bill, escrow statement or tax receipt.
- Check your deed, title report, closing statement or mortgage paperwork.
- Search County Clerk land records by owner name, then compare the property description.
- Request or review a Tax Map Verification Letter if a formal tax map verification is needed.
Assessment Records, Values and Property Description
Nassau County assessment records are useful for checking property values, taxable information, property descriptions, tax class, recent sales and related tax information. These records help homeowners, buyers, attorneys, lenders and researchers confirm property identity.
New York State explains that assessment rolls list information for every property within a municipality and encourages owners to review assessments, exemptions and fairness during the assessment review period.
| Assessment Item | What It Helps You Check | Why It Matters |
|---|---|---|
| Section, block and lot | Main Nassau County property identifier. | Best field for matching assessment, tax, deed and map records. |
| Property values | Assessment and value information tied to the property. | Useful for tax review, grievance research and buyer due diligence. |
| General and school taxes | Tax categories connected with the property. | Important for homeowner budgeting and escrow review. |
| Open and paid taxes | Tax payment and balance clues. | Helpful before purchase, refinance or tax payment follow-up. |
| Property description | Basic property characteristics and description details. | Useful for identifying the correct property and checking data errors. |
| Recent sales | Recent transfer or sale activity. | Helpful for market review, assessment comparison and buyer research. |
General Taxes, School Taxes and Tax Receipts
Nassau County properties commonly have general taxes and school taxes. The exact billing and collection office depends on where the property is located.
For many properties, the town receiver of taxes handles collection. Some cities and villages have separate tax offices or additional local charges. Always confirm the property location before paying.
- Find the SBL first Use LandRecord Lookup to confirm section, block, lot, property address and local taxing area.
- Check tax data in LandRecord Lookup Review general taxes, school taxes and open/paid tax information.
- Open the correct tax receiver Use the property’s town or city tax receiver for current bill payment and receipts.
- Verify before paying Confirm property address, SBL, tax year, tax type, amount due, penalty and payment method.
- Save proof of payment Keep confirmation numbers, receipts, screenshots and bank records until the record updates.
Important tax details for buyers and homeowners
If you recently purchased property in Nassau County, check the county record, Clerk deed record and tax receiver record after closing. Ownership, deed recording, tax bill mailing and escrow payment status may not update at the same time.
If your lender pays taxes through escrow, compare the SBL, address, tax year and payment status on your lender statement with the official receiver of taxes record.
Search Deeds, Mortgages, Liens and Land Records
The Nassau County Clerk is the official office for recorded land records. Use the County Clerk land records system when you need deeds, mortgages, assignments, satisfactions, liens, releases and other recorded property documents.
The land records portal states that data is made available by the Office of the Nassau County Clerk as a convenience to the public. Users are responsible for assessing the legal sufficiency, accuracy and reliability of the information.
- Start with property identifiers Save SBL, property address, owner name and any recent sale clues from LandRecord Lookup.
- Open County Clerk land records Go to Nassau County Land Records Official Records Search.
- Search by party names Try owner, prior owner, grantor, grantee, spouse name, trust name, LLC name, lender name and spelling variations.
- Search document references if available Use book/page, instrument number, recording date or document type if you have those details.
- Confirm before relying on a document Match party names, property address, SBL or legal description, recording date, document type and document reference.
Document Copies, Printing Fees and Clerk Search Tips
The Nassau County Clerk land records portal warns that search results may be printed for a fee. Review the portal’s instructions before printing or purchasing any document.
Before ordering or relying on a copy, identify the exact document. Save grantor, grantee, owner name, document type, recording date, book/page or instrument number, SBL and property description clues.
| Record Tool | Best Use | Official Starting Point |
|---|---|---|
| County Clerk Land Records | Search deeds, mortgages, satisfactions, assignments, liens and recorded property documents. | Official Records Search |
| County Clerk Office | Official office help for complex land-record and copy questions. | Nassau County Clerk |
| LandRecord Lookup | Confirm property identity before deed search. | Property Lookup |
| My Nassau Info | Find local districts, police precinct, fire district and road authority. | My Nassau Info |
| Tax Map Verification | Request tax map verification information for parcel-related questions. | Tax Map Verification |
GIS Parcels, Tax Maps and Map Research
GIS parcel data can help you understand property location, map context and surrounding parcels. New York State’s parcel program provides publicly available GIS tax parcel data for planning and general use.
NYS GIS also warns that parcel GIS data is not a substitute for a legal parcel survey. For boundaries, lot lines, encroachments, easements or construction decisions, rely on deeds, surveys and professional review.
- Start with SBL Use LandRecord Lookup to get the section-block-lot before map research.
- Use My Nassau Info Open My Nassau Information Lookup for local district and authority context.
- Use state parcel resources Open NYS GIS Parcels for statewide parcel data guidance.
- Compare with property records Make sure the map record matches the official address, SBL and property description.
- Use maps for research only For boundary or legal questions, use recorded documents and a licensed surveyor.
Town of Hempstead, North Hempstead, Oyster Bay and City Taxes
Nassau County property tax payment research depends heavily on the property’s local jurisdiction. Many properties are in the Town of Hempstead, Town of North Hempstead or Town of Oyster Bay. Some are in cities such as Long Beach or Glen Cove.
Use the county record to confirm the property, then use the correct local tax office for payment and receipt details.
| Local Area | What to Search Locally | Official Starting Point |
|---|---|---|
| Town of Hempstead | General and school tax bills, payment center and tax bill lookup. | View & Pay Tax Bills Online |
| Town of Oyster Bay | Tax billing and collection for parcels in the town. | Oyster Bay Receiver of Taxes |
| Town of North Hempstead | Receiver of Taxes, bill payment, receipts and tax collection support. | Town of North Hempstead |
| City of Long Beach | City real estate taxes, residential sanitation and current-year Nassau County tax bills. | Long Beach Tax Department |
| City of Glen Cove | City tax bill and local tax collection questions. | City of Glen Cove |
Assessment Review, Grievance and Exemptions
If you believe a Nassau County assessment is incorrect, the Assessment Review Commission is the key local resource. Nassau County property assessment review is different from many other New York counties, so do not assume a generic New York grievance form applies the same way.
New York State guidance notes that assessment review and grievance processes vary, and its standard RP-524 grievance guidance applies to properties outside New York City and Nassau County. Nassau County owners should use Nassau County ARC resources and current local filing instructions.
- Review the property record Save SBL, property class, assessed value, property description and recent sales.
- Compare similar properties Review nearby properties with similar size, use, location, condition and sale history.
- Open ARC resources Use Nassau County Assessment Review Commission.
- Confirm filing period Assessment challenge dates can change by tax year. Confirm current deadlines directly with ARC.
- Keep proof of filing Save confirmation numbers, receipts, submitted forms and supporting evidence.
Property Fraud Safety and Deed Monitoring
Property owners should occasionally search Nassau County Clerk land records for unfamiliar deeds, mortgages, assignments, satisfactions, liens or releases. Public land records help with visibility, but they do not automatically prevent suspicious filings.
If you find an unexpected document connected with your property or name, save the recording details and contact the County Clerk, lender, title company, law enforcement or a New York attorney depending on the issue.
- Collect search identifiers Save owner names, prior owner names, SBL, property address and lender names.
- Search Clerk land records Use current owner, prior owner, spouse name, trust name, business name and lender name.
- Watch for unfamiliar documents Look for unknown deeds, mortgages, assignments, satisfactions, liens or releases.
- Save the document reference Write down document type, recording date, party names, book/page or instrument number.
- Act quickly if something looks wrong Contact the Clerk, title company, lender or attorney before relying on the record.
Office Address, Phone Numbers and Map
Nassau County Government / Clerk and Assessment Area
240 Old Country Road
Mineola, NY 11501
Phone: 516-571-2664
Official Website: Nassau County Clerk
Land Records Search: Official Records Search
Use for: deeds, mortgages, satisfactions, assignments, liens, recorded land documents and official copies.
240 Old Country Road, 4th Floor
Mineola, NY 11501
Phone: 516-571-1500
LandRecord Lookup: Property Lookup
My Nassau Info: Information Lookup
Tax Map Verification: Tax Map Verification
Use for: values, assessment records, property descriptions, SBL, tax map verification and assessment-related information.
240 Old Country Road
Mineola, NY 11501
Phone: 516-571-3214
Website: Assessment Review Commission
Use for: assessment challenges, correction of assessment applications and grievance filing guidance.
Town and City Tax Resources
Town of Hempstead Receiver of Taxes: Receiver of Taxes
Hempstead View & Pay Tax Bills: Tax Bill Lookup
Town of Oyster Bay Receiver of Taxes: Receiver of Taxes
City of Long Beach Tax Department: Tax Department
Use for: tax bill payment, receipts, tax balances and local collection questions.
New York State Property Resources
Real Property Resources: NYS Tax Property Owners
Check Your Assessment: Assessment Guidance
NYS GIS Parcels: Parcel Data
Use for: statewide assessment guidance, property tax relief information, STAR and parcel data context.
Buyer and Homeowner Checklist
Use this checklist before buying, selling, refinancing, paying taxes, checking deed history, preparing an assessment review or researching Nassau County property records.
Nassau County Property Records Checklist
- Search Nassau County LandRecord Lookup first.
- Copy section, block and lot exactly as shown.
- Review values, general taxes, school taxes, open and paid taxes, property description and recent sales.
- Use My Nassau Info for local districts and property-related government contacts.
- Use the Nassau County Clerk land records system for deeds, mortgages and liens.
- Search Clerk records by owner, prior owner, grantor, grantee, lender and business names.
- Use the correct town or city tax receiver for current bill payment and receipts.
- Check both general and school tax records before closing or refinancing.
- Use ARC resources for assessment review and grievance guidance.
- Use NYS GIS parcel data only as map context, not legal survey proof.
- Save tax receipts, deed references, SBL, screenshots and closing documents together.
- Use a New York attorney or title professional for title, lien priority and legal ownership questions.
Local Tips Most Guides Miss
- SBL is the master key: Section-block-lot is the best identifier for Nassau County property research.
- Check both school and general taxes: A property tax review is incomplete if you only check one tax type.
- County records and tax receiver records differ: Use the local receiver for payment receipts and current bill questions.
- Use the County Clerk for deeds: Assessment records are not deed records or title reports.
- Search prior owners: Older mortgages, satisfactions and liens may be indexed under a previous owner.
- Do not rely only on address: Nassau addresses can format differently across systems. Confirm SBL.
- ARC is different from many NY grievance systems: Use Nassau-specific assessment review resources.
- Watch escrow timing: A lender payment may not appear immediately in local tax records.
- Use map data carefully: GIS parcel layers are helpful for context, not legal boundaries.
- Keep one property folder: Save SBL, LandRecord Lookup screenshots, tax receipts, deeds and title documents together.
FAQ: Nassau County Property Records Search
How do I search Nassau County property records online?
Start with Nassau County LandRecord Lookup. Search by property address or section-block-lot, then review values, general and school taxes, open and paid taxes, property description, recent sales and My Nassau Info.
Is Nassau County property records lookup free?
Basic Nassau County property lookup, My Nassau Info and many assessment details are available online. County Clerk land record copies, printing and certified documents may involve fees.
Where can I search Nassau County deeds online?
Use the Nassau County Clerk Land Records Official Records Search. It is the official source for recorded land documents such as deeds, mortgages, assignments, satisfactions and liens.
What is section, block and lot in Nassau County property records?
Section, block and lot, often called SBL, is the property identifier used to match Nassau County assessment, tax, land-record and parcel map information.
Where can I find Nassau County property tax information?
Use LandRecord Lookup for general and school tax information, open and paid taxes, and property details. Use the correct town or city tax receiver for current payments and receipts.
Who handles Nassau County property tax payments?
Tax payment collection often depends on the property location. Use the receiver of taxes for the applicable town or city, such as Hempstead, Oyster Bay, North Hempstead, Long Beach or Glen Cove.
Where is the Nassau County Clerk?
The Nassau County Clerk is located at 240 Old Country Road, Mineola, NY 11501. The main phone number is 516-571-2664.
Can I search Nassau County property records by owner name?
Owner-name search may be useful in Clerk land records and some property-record workflows. For assessment lookup, address and section-block-lot are usually stronger search keys.
Can Nassau County parcel maps be used as legal surveys?
No. GIS parcel data and map tools are research resources. They do not replace deeds, tax maps, title reports, legal descriptions or licensed boundary surveys.
Which office should I contact for Nassau County property questions?
Contact Assessment for values and SBL questions, the County Clerk for deeds and land records, the local receiver of taxes for payment questions, and ARC for assessment review or grievance questions.