Blog · September 25, 2026 · New Jersey
How to Find the Block and Lot Number of a New Jersey Property
In New Jersey a property is not identified by one long parcel number. It is identified by its town plus a block, a lot and sometimes a qualifier. Permit clerks, surveyors, title searchers and tax offices all ask for those three pieces, and there are four quick ways to find them.
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How New Jersey numbers land
Each municipality in the state keeps its own official tax map. On that map, land is grouped into blocks that carry numbers, and every block is broken up further into lots with their own numbers. The block and lot pair is how the assessor, the tax collector and the county clerk’s deed index all refer to a parcel.
The key detail is that the numbers restart in every town. Block 12, Lot 3 in one township has nothing to do with Block 12, Lot 3 next door. That is why a New Jersey lookup always begins with the county and municipality, and why a block and lot written without the town name is incomplete.
A qualifier is a short code added when more than one tax account shares a block and lot. Condominium units are the classic case. In the statewide parcel data for Berkeley Heights, for example, condo records carry a qualifier of CONDO and lot numbers such as 1C.1 and 1C.2 on the same block. Most single-family homes have no qualifier at all.
Method 1: Your tax bill or assessment notice
The fastest answer is on paper you already have. New Jersey tax bills and the annual assessment notice show the block, the lot and any qualifier in the property section at the top of the page. If you are buying, ask the seller or listing agent for a copy of a recent bill, or check the disclosure packet.
Method 2: The deed
Deeds in New Jersey usually recite the tax map block and lot in the legal description or on the first page. Older deeds may cite numbers from a tax map that has since been revised, so treat a very old block and lot as a clue rather than a final answer. Deeds are recorded with the county clerk, and most county clerks offer an online index.
Method 3: A county parcel viewer
Most New Jersey counties publish a parcel map that shows block and lot when you click a property. Our New Jersey county list links the official viewer for each county we have verified. Open it, search by street address or zoom to the property, and click the lot. The pop-up normally lists block, lot, qualifier, owner and property class.
A few counties are marked “verify” in our directory because we could not confirm a stable direct viewer. For those, use the statewide map in the next method or call the municipal tax assessor. Our Sussex County guide shows what a full county walkthrough looks like.
Method 4: The statewide parcel layer
The state publishes tax parcel data for the whole state on its GIS server. The parcel layer used for tax list searches stores each property with fields for county, municipality, block, lot, qualifier, owner name, property class, deed book and page, and a calculated acreage. It also builds a combined key called PAMS_PIN by joining a four-digit municipal code, the block and the lot with underscores. A record for Block 1205, Lot 6 in Berkeley Heights Township reads 2001_1205_6, and a condo unit adds its qualifier on the end.
You rarely need to read that raw data yourself. The New Jersey Department of Environmental Protection’s NJ-GeoWeb map includes a Parcel Search tool that lets you pick a county and municipality and search by block and lot, then export what you find. It is handy when a county viewer is down or when you are checking parcels that straddle a town line.
Common lookup mistakes
- Wrong town. A mailing address uses the post office name, which is not always the municipality that taxes the house. Confirm the town on the map before you trust a block and lot.
- Missing qualifier. If you search a condo by block and lot alone, you may get the common land record instead of the unit.
- Old numbers. Towns revise tax maps, and subdivisions and lot mergers renumber land. If old numbers come up empty, search by address and compare.
- Decimal lots. Lots such as 14.01 or 1C.2 are real numbers, not typos. Enter them exactly.
What you can do with block and lot
With the three pieces in hand you can request a tax search, order a certified list of property owners within 200 feet for a zoning board application, look up the deed chain at the county clerk, or give a surveyor what they need to find the filed map. Builders and contractors use block and lot on permit applications, and the municipal tax assessor uses it to answer questions about a specific parcel. If the land is part of a farm assessment or has an open space deed restriction, the block and lot is how that record is found.
Keep in mind that tax map lines are for assessment. For fences, additions and boundary disputes, the filed subdivision map and a survey by a New Jersey licensed land surveyor control. Our explainer on whether plat maps are public record covers how to request a filed map.
Frequently asked questions
Where is the block and lot on a New Jersey tax bill?
Near the top of the bill, next to the property location, along with any qualifier.
Why does the same block and lot appear in two towns?
Each municipality numbers its own tax map, so identical numbers in different towns are different parcels. Always pair block and lot with the municipality.
What is a qualifier in a New Jersey block and lot?
A code that separates tax accounts sharing one block and lot, most often condominium units. Many homes have none.
Can I search New Jersey parcels by block and lot online?
Yes. Many county parcel viewers accept block and lot, and the state’s NJ-GeoWeb map has a Parcel Search by county, municipality, block and lot.
Open the Platbookmapper county map New Jersey county parcel viewers
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey — especially for fences, setbacks, or boundary disputes.