Presumably, when these people bought their homes, they felt they'd be able to live with a relatively continuous sense of community, not feel forced to sell as a billionaire's compound encroached on them.

There's an assumption that these homeowners are getting bought out above market, but what's the market rate for a multi-million dollar home next to the perpetual construction and noise of a billionaire's fife, on a street where an increasing number of homes are being bought out and lay vacant? And why would the property team not negotiate any sale somewhat aggressively?

"but what's the market rate for a multi-million dollar home next to the perpetual construction and noise of a billionaire's fife"

I assume still pretty good, as the expectation is the billionair will rather pay a bit more, than be annoyed by the delay of his plans of grandeur.