basisadresse

Basisadresse is a term used in public administration and geospatial information to denote the canonical or base address of a location within an official address framework. It represents the officially recognized, stable form of an address that serves as the single source of truth for all address data in a jurisdiction. The concept is intended to provide a consistent reference point for linking and integrating diverse data sets across agencies and systems.

A Basisadresse typically includes core elements such as street name, house number, locality or city, postal code, and country, and may also carry a unique identifier, coordinates, address type, and status. The base form is intended to be unambiguous and durable, even when ancillary address variants (such as informal names or PO boxes) exist.

Maintenance and governance are usually carried out by a national or regional authority through an address register or central data repository. Key processes include deduplication, normalization of street names and language variants, standardization of formats, versioning, and linking to related objects such as parcels or buildings. Data quality, completeness, timeliness, and privacy considerations are central to stewardship.

Applications and importance are broad: Basisadresse supports mail delivery, emergency response, taxation and statistics, urban planning, and geographic information systems. It enables reliable geocoding, routing, and cross‑system interoperability by providing a stable reference that other address data can reference.

In German-speaking contexts the term Basisadresse is common, and in some countries it corresponds to a national or regional address register (for example, Basisadresseregister or BAR). Variants across jurisdictions reflect local governance and data standards, while the underlying objective remains a single, authoritative address reference.