From what I have read of Cardinal Ratzinger's apartment, he had books everywhere - all of the walls were lined with bookshelves. That, however, does not mean that he had a 3,000 square foot apartment. That would be an entire floor in that building. Each floor has 2 apartments, I believe. And it's so ill-constructed inside that the others who lived there could here Cardinal Ratzinger playing his piano.
Among those who live in Cardinal Ratzinger's apartment building are: Cardinal Darío Castrillón Hoyos, Cardinal Pio Laghi, Cardinal Walter Kasper, Cardinal Virgilio Noe (Tarcisio Bertone used to live there; Cardinal Hummes lives in the building now). There is also a Sister Yvonne Mary Loucks, R.S.M., Piazza della Citta Leonina, 1, who is in charge of the efforts for beatification for Ven. Catherine McAuley.
According to an article written April 25, 2005, for Der Spiegel, Cardinal Ratzinger was said to live in apartment no. 8.






