I agree it's certainly possible. But I've seen a lot of housing developments since the 1980s in the Western cities' suburbs that are at odds with conservationism. I think it happened to not be felt until relatively recently because there was some "slack" available due to lower populations to allow those large lots to exist and not feel crowded or encroach on the environment.

Unfortunately, I'm not sure there is a politically tenable solution since everyone likes their own personal vehicles, and for that you need a driveway or garage, and for that you need space and roads, and that does not scale well with population increase.