While looking for suburban dwellings, I came accross a collection called
St Pete's Village, by
markiatnet. It consists of 32 different houses:
It would serve well anywhere where a suburban setting is required, such as the latest Pinhead project.
Each model is quite detailed, with an interior layout as well. Components such as windows and doors are separated out, so you can make them into subprops and animate them. The size per model is around 25k polys.
Because of those details, the total scene size is almost one million polys (part of which must be streets, sidewalks, and landscaping) This is a bit unmanageable, so what I did was open a second instance of Sketchup and then copy a single house into it, which I then saved as a new file. I then imported the file into 3DXchange. The scale is not quite right, but when I reduced the size to 80% it was OK.