Every address added in the current release, with enough context to tell growth from data cleanup.
The distinction that matters
An address appearing for the first time means one of two quite different things. Either a dwelling was built, or a source improved and an existing dwelling finally got recorded. Treating the second as growth will overstate your pipeline, sometimes badly, and the error is concentrated in exactly the rural and small-municipality areas where the base is thinnest.
Each record carries an addition_reason: construction where a building footprint appeared in the same window, source_improvement where the parcel was already built, and unknown where neither test is conclusive.
Subdivision grouping
Additions are grouped by subdivision where one can be identified. A subdivision going from 4 addresses to 60 in one quarter is a development coming online, and it will produce enrolment in two to four years. Scattered single additions across a municipality are infill, with a different and faster timeline.
Fields
addition_reason: construction, source_improvement, unknownsubdivision_codeandsubdivision_namewhere identifiedfirst_release: the release in which the address first appearedparcel_status: whether the parcel is on the assessment roll yet
Why parcel status is useful
A freshly platted parcel that is not yet on the assessment roll has no assessed value, which means it cannot be classified as residential by value. These are the earliest visible signal of a development, appearing before construction starts. They are flagged rather than dropped.
Format
Supplied as CSV and GeoJSON rather than GeoPackage, because this product is small, frequently loaded into spreadsheets, and often passed to people without GIS software.