You figure out how to extract the meshes and textures from SC4, and use these to make the new NBhood deco (finding a tutorial on the how-to might be an idea).
Then again, it might be a bit difficult, as
(from here)Unfortunately SimCity4 doesn't have meshes for the buildings, it's just made of 2D sprites like Sims 1. So they are only suitable for viewing in a game where you get 4 fixed viewing angles.
No idea about the animals or other things, as I don't have the game myself.
