We haven't. We moved in about two years ago, and the house needed a little bit here and there, we repainted, etc. But for the most part we didn't have to do anything major. Except for the new roof. The bathrooms are all pretty new and the kitchen is old, but livable. I don't like modern things so it works for me.
Now that we have a new baby on the way we're going to be doing some construction to our guest room to make it livable for LO to move in there. There are double doors right by our living room and it would be way too loud at night for her to sleep like that, so we're switching the closet with the door to give a sound buffer.