"The ne0-Louis XIV castle has been abandoned since the Second World War when the Rothschild family fled to England before the arrival of the Germans, who would later inhabit and plunder the house during the four-year Nazi occupation of Paris. After the city’s liberation, the U.S. army were the next self-service tenants at the Chateau Rothschild– their stay didn’t do the residence any favours either. The Rothschilds never returned to their home and over the decades it has been left to deteriorate while serving as a playground for graffiti artists and vandals."Renovation is important, but sometimes, like second hand books, it's useful to keep houses in their ongoing state so that they reflect the life they've led.
Architecture Messy Nessy has some atmospheric images of the rotting Rothschild Mansion in Paris: