That is up from the 2018 conforming loan limit in the D.C. In D.C., and all surrounding counties for 2019, the conforming loan amounts will be capped at $726,525. The Washington metro is one of those markets. Priciest houses for sale in Maryland, Virginia and DCīut FHFA makes exceptions in particularly pricey housing markets where median prices exceed the conforming limit.Where DC-area housing prices are rising most.Tips for buying, selling a home during the holidays.Business & Finance Click to expand menu.