Its usually a win win for all involved. I knew someone who made a fortune selling his corner bar to the city of West Allis Wisconsin. The city paid the alcoholics, err, I mean tenants who lived above it a pretty sum for moving expenses. If someone showed up at my door today and offered 3 times fair market value, I couldn’t pack fast enough.
You are correct...I know someone who got big bucks for their house and built one 6 times as big as the one they had before with money left over...
Back in the 80s a Super Collider was going to be built south of Dallas. I met a guy who sold his land and a few people sitting around said “This guy go rich.”