Upper Marlboro, MD SOLD Homes March 2011 Houses SOLD:  81 Average LIST price:  $265,065 Average SELLING price:  $259,070 Average DAYS ON MARKET: 123 LOWEST SALE price:  $50,915- 3 bedroom, 1.5 bath condo built in 1974 located in Cinnamon Ridge - foreclosure HIGHEST SALE price:  $610,000 - 4 bedroom, 4 full & 2 half bath single-family home located in Nicholson, built in 2007 - short sale  Upper Marlboro, MD ACTIVE listings (as of 4/6/2011)                        ACTIVE Houses:  664 Average LIST Price:  $285,377 LOWEST LIST Price:  $25,000 - 2 bedroom,1 bath mobile home located in Flower Village built in 1983 HIGHEST LIST Price:  $1,750,000 - 7 bedroom, 5 baths, single-family home built in 1790 Current Average Days on Market:  166   Upper Marlboro, MD UNDER CONTRACT listings (as of 4/6/20... 04/05/2011