How to Find a Parcel Number by Address

To find a parcel number by address, open the official property search for the local assessor or tax office and search the property’s street address. Select the matching record and look for a field labeled parcel ID, tax map number, APN or a local equivalent. A current property tax bill is another useful starting point.

Copy the identifier exactly, then confirm that the record describes the property you mean to research. This guide explains that verification step and common New York and New Jersey naming differences. It helps you locate records; it does not replace a survey or establish ownership, title or permission to develop land.

A parcel number is an identifier used by a local property-record or tax system to distinguish a parcel. The terminology and format depend on the jurisdiction. APN commonly means assessor’s parcel number. In New York, you may see SBL, print key or tax map parcel number. New York City uses borough, block and lot, usually shortened to BBL.

The identifier is useful because an address alone can be ambiguous. A vacant parcel may have no ordinary street number, and a building can have multiple units or associated lots. Keep the jurisdiction with the number in your notes; do not assume an identifier is meaningful without knowing which local system issued it.

Identify the state, county and municipality where the property is located. Search for that jurisdiction’s official assessor, property appraiser or tax office. Begin with the government website and follow its property-search link, including any third-party record system that the office itself identifies.

Before paying a commercial lookup service, check what the local office makes available directly. If the online search is unclear or unavailable, ask the assessor how to locate the record by address. A state directory or county GIS map may help you reach the right office, but keep track of the source and its stated limitations.

Enter the building number and street name, then choose the matching municipality or borough if requested. If the result is empty, read the search instructions: some systems separate the number from the street, or use different abbreviations. Check spelling before changing the search.

Try a less specific street-name search only if the site supports it. For vacant land without a numbered address, use an official parcel map to identify a candidate record or contact the assessor with the location and available sale documents. A nearby house’s street address is not a substitute for the vacant lot’s identifier.

Open the detailed record rather than relying on a map label alone. Compare the location, municipality, lot or unit details and acreage where shown. Use the map to understand which candidate you selected, while recognizing that the map is not a boundary survey.

New York’s tax department explains that tax map numbers can also be called SBL, print key, tax map parcel or parcel identifier. Its sample tax-bill guidance tells users to retain the number’s periods and hyphens. Look for the matching field on your own bill rather than assuming every municipality uses an identical layout.

For New York City, the Department of Finance’s Property Information Portal supports address and borough/block/lot searches. ACRIS also provides an address-to-BBL lookup. Use the borough and, where applicable, unit information to distinguish the intended record. For a condominium, confirm that you have the unit’s tax lot rather than a building-level billing reference.

If you continue into recorded-document research, note the system’s coverage: ACRIS provides land-record searches for Manhattan, Queens, the Bronx and Brooklyn. Follow the appropriate local records route for Staten Island. Finding a BBL and reviewing the correct recorded documents are separate steps.

New Jersey’s official property transparency page points users toward parcel information including location, block and lot, assessment and tax information. Start there or with the property’s municipal assessor. Record the municipality alongside the block and lot so the identifier has the necessary context.

If the record shows an additional qualifier, copy it as well and ask the assessor to explain it if necessary. Compare the resulting record with the property being offered. Do not assume a nearby map label, matching owner surname or similar street name identifies the same land.

A listing may include multiple tax parcels, or a subdivision or combination may have changed the identifiers used in older documents. Ask the seller or listing agent for the complete parcel list and ask the assessor to explain the current record. Keep older and current identifiers labeled separately.

Condominiums deserve particular attention because a unit record and a building reference can serve different purposes. If two plausible results remain, stop short of treating either as confirmed. Ask the responsible office or your title professional to reconcile the documents instead of guessing from the map pin.

Use the confirmed identifier to organize questions about taxes, recorded documents and local land-use records. Finding the number does not answer those questions automatically. The NYC Property Information Portal, for example, expressly says its GIS information is not a substitute for engineering drawings or surveys.

For a property purchase or auction, keep a short parcel sheet with the listing address, confirmed identifier, source records and unresolved discrepancies. Use Auction14’s title-search and land-buying guides below to plan the next checks, and resolve any mismatch before relying on the parcel information in a purchase decision.