Here's an exerpt from the new book, U2 By U2, all about the houses:
Edge speaking:
Early in the Nineties, Bono hatched this idea that the band would try and buy a huge house in France and create a small compound with enough space for us all to spend time there together. An estate agent called to say he had found a fantastic place right on the sea and we all went down to view it. Adam and Larry took one look and said they thought the whole idea was completely mad. But at that point I was on my own, I'd moved out of the family home and it felt like somethhng that had potential to be the next phase of life. So Bono and myself bought this house together and started making plans to renovate, because it was in such bad condition. We are only just finishing it, over fifteen years later. It's two houses on a single piece of land and we swap houses every couple of weeks. When I tell people I go on holidays with Bono they look at me a little funny but it has actually worked out really well. We bought it in 1992, it was at least another year before one of the houses was habitable and we spent a lot of time there during 1994. That was our summer of love, as Bono calls it. We had a rare old time.