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What is the BAG and what does it say about your home?

The BAG (Basisregistratie Adressen en Gebouwen) is the official register of all addresses and buildings in the Netherlands. Municipalities maintain the data, and the Kadaster (the Dutch Land Registry) manages the national system. Government bodies are required to use the BAG.

Updated · 1 min read

The key terms

  • Nummeraanduiding (address designation): the address itself (street, house number, suffix, postcode).
  • Verblijfsobject (residential or business unit): the space with that address, such as a home or a shop. It has a use and a usable floor area.
  • Pand (building): the physical building. A building can contain several units, such as flats.

Usable floor area

The usable floor area (gebruiksoppervlakte) in the BAG is determined according to the NEN 2580 standard. It is the area within the enclosing walls, excluding thick load-bearing walls and shafts, among other things. Estate agents use their own measurement guidelines based on this standard for the living area in listings; small differences are normal.

Use and status

The use (gebruiksdoel) is the purpose for which the unit is intended under its permit, for example residential or retail. The status shows whether a unit is in use, still under construction or has been demolished.

Is something wrong in the BAG? Only the municipality can correct it. You can report a possible error to your municipality.

Sources

In the property report: Property

See this for your own address.

Energy label, year of construction, foundation, permits, plot and surroundings of the house you want to buy, in one report. From official sources.

Or browse the sample property report first.

Further reading