The second technology drivers are the impact of Robotics and 3D Printing, which will demonetize the cost of building structures.
Demonetized Cost of Living
Peter Diamandis

Ahhhh… But in this you miss the meaning of personality, character and history to a location. People prefer to live in certain places because of it’s personality, character and history. People often do not like ultra-modern neighbourhoods. Although I guess potentially robots and 3D printing could “demonetise” redevelopment of older buildings too, it could not produce older monuments that didn’t exist (since that wouldn’t be possible without a time machine :P )