This Multi-Family Home located at 423 Olympia Avenue, Longmont, CO sold for $349,900on Aug 12, 2016. 423 Olympia Ave has 2 beds, 1 ½ bath, and approximately 1,384 square feet. The property has a lot size of 4,400 sqft and was built in 2011. The average listing price for similar homes for sale is $382,450. 423 Olympia Ave is in the 80504 ZIP code in Longmont, CO. The average price per square foot for homes for sale in 80504 is $137.