I did Google it, and it's ridiculous.

It's usually called infill, and it's unequivocally supported by most and opposed by NIMBYs. From an article in NYT about the infill happening in downtown Brooklyn in 2006

>“Regions and cities, in trying to combat sprawl, are encouraging infill development,” said Ted Droettboom, an official with the Association of Bay Area Governments. “But you’re doing that with existing neighborhoods with existing neighbors, who fear traffic, who fear density and height.”

>The trend toward infill development is in part a product of the “smart growth” movement that has gained currency among land-use planners and environmentalists. Higher-density, mixed-use development built around mass transit hubs, they argue, is more environmentally sound than suburban sprawl and produces better quality of life.

https://www.nytimes.com/2006/08/06/weekinreview/06confessore.html