Tomorrow 80 years ago the NS Chief engineers planned the murder of about 11Million Jews. The villa is still there and is visited by 120.000 people every year. Today young German visitors donot always know all the facts, but the interest is there and the readiness to look closer and question even their own family history increases.
Most of the references I have seen i.e... House of the Wannsee Conference Mention that Wannsee was "used as a guest house" by the SS. "In 1914, pharmaceutical manufacturer Ernst Marlier builds his new luxury villa, and a few years later anti-Republican and right wing industrialist Friedrich Minoux takes ownership of it. He sells the villa to an SS foundation in 1941 for use as a guest house. The following year, National Socialists are already planning the Wannsee Conference. After the Second World War, the villa is handed over to the political party SPD who establish an educational centre called the August-Bebel-Institute." Though I think in the HBO film - "Conspiracy" Heydrich more or less is treating it as his home or has designs on it for such. Wannsee Conference - Wikipedia Has "The villa had been purchased from Friedrich Minoux in 1940 by the Sicherheitsdienst (Security Force; SD) for use as a conference centre and guest house." Sicherheitsdienst - Wikipedia "Its first director, Reinhard Heydrich, intended for the SD to bring every single individual within the Third Reich's reach under "continuous supervision". " Edit - https://podbay.fm/p/we-have-ways-of-making-you-talk/e/1639188000 405. The Wannsee Conference