As you're using the wizard in overpass turbo already, simply use copy the following expression in to the wizard popup: ("addr:housenumber"=* and "addr:postcode" is null) in Gatineau overpass turbo link: http://overpass-turbo.eu/s/auT

As you're using the wizard in overpass turbo already, simply use the following expression in the wizard popup: ("addr:housenumber"=* and "addr:postcode" is null) in Gatineau overpass turbo link: http://overpass-turbo.eu/s/auT