Thanks for working on Brentwood. The complicated mix of interior/exterior paths and building shapes across levels has intimidated me away from touching this too much. Your changes are definitely an improvement.

Personally I still haven't wrapped my head around when a building should be it's own vs when it should be a building part. For the podium-tower design that is common in Vancouver, I think separating the tower from the podium is better at showing that the tower is very distinct from the podium. I think I am tending to prefer using building parts for when the difference is <= a few levels vs separate buildings when the difference is more significant. The wiki says "A building that has a three-story part and a six-story part is still a six-story building" but I don't think this is useful for all the types of buildings we get in Vancouver.

For example, https://www.openstreetmap.org/way/789720639 and https://www.openstreetmap.org/way/1030541270 could be their own building=* instead of building:part=* due to the fact that there are ~50 levels of difference between them and their adjacent podium.

Any thoughts?

Thanks,
joel56dt