Validation reports
Every release ships with a validation report before the data is available for download. If a municipality is thin, the report says so, and it says so where you will see it rather than in a footnote.
What each report contains
Parse completeness. The share of source records that resolved to a full structured address, reported per municipality rather than only nationally. A strong national figure can hide a municipality where parsing failed entirely.
Positional accuracy distribution. The proportion of records in each position_class. A municipality that is 95% class C is technically covered and practically unusable at the block level. The report shows the distribution rather than a median that would obscure it.
Orphan records. Addresses that could not be attributed to a census subdivision. Small counts are normal, usually along boundaries. Large counts indicate a boundary or projection problem on ingest.
Postal derivation coverage. The share of addresses carrying a postal code, and the distribution of address_count and spread_m across the derived points. This is the figure that tells you whether the postal layer is usable in your area.
Coverage delta. Change in record count against the previous release, per municipality, with an expected range.
Reading the completeness flags
Each municipality carries one flag.
Complete. Parse rate above 97%, and the majority of records class A or B.
Partial. Coverage exists with a known gap — usually poor positional accuracy in rural areas.
Thin. Sparse coverage. Usable for locating a place, not for counting one.
Do not aggregate across flags without saying so. A regional total that mixes complete and thin municipalities is a number with no defensible interpretation, and it will be the number that ends up in a council report.
A caution specific to launch
The base is the National Address Register alone. Its positional accuracy is variable, and a meaningful share of records sit at a representative point rather than a structure. Class C is more common at launch than it will be once municipal sources are layered in.
The report tells you where. Check it before assuming block-level work is supported in your area.
Access
Reports are published on this page as each release goes live, and are included in every download as PDF and CSV so you can filter to your own municipalities.