Upper Marlboro, MD SOLD Homes April 2010 Houses SOLD:  107 Average LIST price:  $268,571 Average SELLING price:  $266,610 Average DAYS ON MARKET: 117 LOWEST SALE price:  $35,000 - 4 bedroom, 1 bath single family home built in 1906, needs rehab HIGHEST SALE price:  $911,325 - 5 bedroom, 3 bath single family home located in Belmont Farm built in 2009   Upper Marlboro, MD ACTIVE listings (as of 5/13/10) ACTIVE Houses:  589 Average LIST Price:  $408,959 LOWEST LIST Price:  $65,000 - 1 bedroom, 1 bath top floor condo located in Treetop , built in 1975 - short sale HIGHEST LIST Price:  $3,276,671 - 7 bedroom, 8 full baths, 2 half baths single-family home to be built on 5 acre lot Current Average Days on Market:  166    Upper Marlboro, MD UNDER CONTRACT listings (as of 5/13/10) UNDER CONTRACT ... 05/13/2010