Hello,

I suppose the map you are talking about is the standard map on openstreetmap.org: this is a collection of PNG images built from map data.  They are regenerated a few times an hour; your place is already visible on higher zoom levels.  It might take a few more hours to make sure the tiles at all zoom levels are refreshed too.

It is also searchable: someone who type   quartier latin, brussels   in the search box will see it in the search results.