Vacant land: assessed on what it could be, not what it is
Land assessment follows zoning, buildability and access. Any of those can be wrong on file.
Vacant land is assessed on its value, and its value follows what can legally and physically be done with it.
What drives it
Zoning, size, road frontage, access, utilities and buildability. A parcel zoned residential and served by utilities is worth more than an identical one that is landlocked or unserviceable.
Where assessments go wrong
- Unbuildable land assessed as buildable. Wetland, floodway, no legal access, or too small for the zoning's minimum lot size.
- Stale zoning on file after a change.
- Acreage that does not match the plat, especially after a road dedication or a taking.
- Farmland assessed residentially before it is subdivided, or the reverse afterwards.
Evidence that works
A survey, the zoning ordinance, a floodplain map, a letter from the municipality about buildability, a percolation test that failed. These are facts, and facts are the strongest ground there is.
Uniformity applies too
Compare assessed value per square foot against nearby lots of similar size and zoning. Vacant land is assessed mechanically enough that outliers are easy to spot.