The story "The Best Christmas Present in the World" by Michael Morpurgo tells the tale of a soldier named Jim who finds a letter in an old coat he bought at a thrift shop. The letter was written by a soldier named Bertie, who was stationed in France during World War I, to his wife Connie. The letter tells of a brief truce between the German and British soldiers on Christmas Eve, during which they exchanged gifts and played football.

However, the question asks about what happened to Connie's house. In the story, Connie's house is described as being "a tiny cottage, with a thatched roof and a garden full of flowers."

In the letter, Bertie writes about how he and his fellow soldiers took shelter in Connie's house during the truce. They were welcomed warmly by Connie and her young daughter, and they enjoyed a simple meal together.

After the truce ended and the soldiers went back to fighting, Bertie wrote that he hoped to return to Connie's house someday and thank her properly for her kindness. However, it is not explicitly stated what happened to Connie's house after the war.

It is possible that the house was damaged or destroyed during the fighting, as many buildings were during World War I. Alternatively, Connie and her daughter may have moved away or passed away, leaving the fate of the house unknown.

Overall, while the story doesn't provide a clear answer to what happened to Connie's house, it does highlight the human connections and moments of kindness that can arise even in the midst of war.

It was in a ridiculous condition because of the striking of fire and water.