Building completion year is the calendar year when a building was completed or put into use, as recorded in housing and census statistics. In plain English, it is the year the building is treated as finished for a dataset or official form, not a technical judgment of every stage of construction. In European census standards, building-related data are collected under harmonized topics, while national statistical authorities may define and publish the field in slightly different ways.
Completion year is a simple age marker for buildings. It helps analysts, buyers, owners, and public bodies understand the age structure of the housing stock and compare older buildings with newer ones. That matters because building age is often linked to renovation needs, housing supply patterns, and statistical reporting on construction and dwellings. The field is useful, but it should be read as a recorded year, not as a full construction timeline or legal certificate of completion.
Latvia, Lithuania, Estonia, Finland, and Sweden may use local standards, labels, filing systems, or access rules for building completion year. The broad statistical idea can be similar across countries, but the exact field name and public availability can differ by jurisdiction.