They, do that, first, and then come back through with zoning changes that eliminate SF zones to create 15 minute cities and cram everyone together in urban areas.Also, with the Oregon required super tight urban growth boundary there are very limited lots available to build on. West Linn, Lake Oswego, Tualatin, Tigard, Sherwood, Wilsonville are pretty much built out. Lots are expensive and the demand for a relatively safe environment for families puts home prices at a premium. When my kids were at Stafford Elementary there were two kindergarten classes of about 23 kids each. Today, one class with 18 kids.