Chicago expanded their shoreline via landfill from 1870-1940. Not sure about cost / land value. http://www.encyclopedia.chicagohistory.org/pages/3713.html http

Chicago expanded their shoreline via landfill from 1870-1940. Not sure about cost / land value. http://www.encyclopedia.chicagohistory.org/pages/3713.html http://www.encyclopedia.chicagohistory.org/pages/3713.html https://www.cityofchicago.org/content/dam/city/depts/cdot/ShorelineHistory.pdf https://www.cityofchicago.org/content/dam/city/depts/cdot/Sh... A modern article says an additional 225 acres could add $62.5B. https://chicago.curbed.com/2015/1/21/10001048/we-could-keep-the-lakefront-sacred-by-adding-more-of-it https://chicago.curbed.com/2015/1/21/10001048/we-could-keep-... Also, somewhat related, Chicago raised their city 6 ft in the 1850-1860's. https://en.wikipedia.org/wiki/Raising_of_Chicago https://en.wikipedia.org/wiki/Raising_of_Chicago