It's interesting to see how segmented Antwerpen was back in 1777, what the author describes as hedges.

These were usually the result of inheritance, when the land of one owner got split into pieces and each child then got one piece. They got smaller and smaller.

I didn't think that this was already so extreme in 1777, but comparing it to the other maps, only Antwerpen and Brugge seem to be affected.