The period of industrialization that led to the great creation of wealth as a result of new technologies and unparalleled growth was known as the Gilded Age...
See the link below for more background:
https://www.history.com/topics/19th-century/gilded-age
See how some of the giants of industry lived in this era:
Kykuit-the country home of John D. Rockefeller Sr., John D. Rockefeller Jr., Nelson A. Rockefeller, and their families...
https://hudsonvalley.org/historic-sites/kykuit-the-rockefeller-estate/
http://www.abbeville.com/bookpage.asp?ISBN=0789202220
Andrew Carnegie Estate
https://www.cooperhewitt.org/carnegie-mansion-history/
Cornelius Vanderbilt lived in a modest home, but his descendants made up for it.
https://untappedcities.com/2012/02/01/remnants-of-the-vanderbilt-mansion-in-new-york-city/
http://thegildedageera.blogspot.com/2012/07/the-cornelius-vanderbilt-ii-mansion-new.html
Jay Gould
http://www.lyndhurst.org/