Where Louden's house is at
Okay I was watching the movie last night and it dawned on me his house is in Peaceful Valley, where Benny & Joon was also filmed and their house is a block down from their street he lived on. When he goes outside and runs, you see the edge of the Maple Street Bridge and then I looked at the street on googlemaps on street view and it was there but that light post you see in front of Louden's house, that was just fake I think because it's not there in real life.
What's funny is in B&J, where Joon has her break down on the bus, it takes place under that bridge and Louden's house is right next to the park that is under the bridge.
I just thought it was cool and it also surprised me because how can I have not ever noticed if I have been to the neighborhood many times just to see the B&J house and I have driven on that street Louden's house is on? I think you do see the house in the background when Aiden Quinn gets out of the El Camino and tries to run up to Joon who was placed in the ambulance after her breakdown. But it's hard to tell which house you were seeing because you only see the bottom of it.
http://s10.invisionfree.com/Nova_Infinity/