Hi, 

The current street names were a mix of dutch and bilingual ones. I figured since the commune has official french names for most of our roads (Wezembeek-Oppem being a commune with language facilities), it would be best to make the map more uniform by adding them, similar to neighboring Kraainem. 

I can confirm that the (dutch and french) names are from the official list of the commune since I work for them. 

For the technical remarks, I was unaware that this could have an affect on the buildings and adresses. I will try to double check them. I'll excuse myself for any trouble caused in the meantime. 

I'll also double check the french translations, maybe the list that we use does indeed miss some accents on certain characters. 