There are often buildings, that exist but are not in the cadastre, instead the whole property has a housenumber attached. The cadastre has many errors, but more in the villages, than in big cities. But if you checked on the building and also in the cadastre and no number was to be found, then that looks good. We also cross-check with State register of addresses (Register adries) that also has additional addresses/housenumbers to be found (but sometimes wrongly placed). There are no numbers either, for these 2 objects.

Thanks.