El Sierra, Homes for Sale in Downers Grove, IL El Sierra Real Estate Statistics Average Home Size: 1760 Average Property Taxes: 4384 Homes Listed: 17 Homes Sold: 11 Average Number of Days To Sell: 26 The above Downers Grove real estate statistics were compiled by Team Bowers Realtors based on homes listed for sale in El Sierra, Downers Grove, Illinois between October 11th, 2012 and October 11th, 2013. Homes for sale in El Sierra Address Beds Total Baths Total Sqft Year Built List Price 6643 Briargate Drive 5 2.1 2492 1965 $419,700 812 Bonnie Brae Drive 3 2 1650 1968 $369,000 Sold Real Estate in El Sierra - (July 13th, 2013 - October 11th, 2013) Address Beds Total Baths Total Sold Price 6761 Meadowcrest Drive 3 2 $255,000 6737 Meadowcrest Drive 3 2 $330,000 603 72nd Street 3 2 $265,000 ... 10/11/2013