You misunderstood me, you can build your house here too anywhere you want, I am asking about fences mostly and why people have those big open lawns where anyone can walk as they please, in theory at least.
Here you could have the houses be the same distance from the road like in USA, but people would put fences in front of their house all the way up to the sidewalk, so its nothing sound related, just safety related, also by putting a fence, you turn it from a “public” lawn, to your private yard, where kids can play, where you can build a pool and anything else a yard serves for.
Unless that is law regulated, and it apparently is, then creating a big lawn that is open for everyone and that you don’t use for a private yard, just seems like a waste of a property and money.
Just poke around in Google street view, places like Poland, Hungary, Serbia, Romania,etc. Germany unfortunately has low coverage and I suppose that most French and Italian villages have tighter neighborhoods due to their traditional architecture, Netherlands is also not good, since they have a very, very high population density and their neighborhoods look extremely planned (a bunch of rows of the exact same model of a house).
Here’s a example from a Hungarian city https://s20.postimg.org/db9dlryx9/Szeged.png
In that particular example houses are kinda close to the road, but for example my cousin’s house starts 12 meters from the road and the fence starts right after the sidewalk. In USA I looked at a random suburb and the distance was less, about 10-11 meters from the road and there was no fence. My own house is some 7 meters I think, a little less than in USA, but I don’t really notice any cars unless the windows/doors are open.