No-one in my country has a basement but Im considering building a massive loft room in the roof space in the future. We managed to get a nice 4x2 so we both have an office and the nursery is big enough to be our kids room once she's older. Mines full of vintage toys which my partner doesn't give a shit about. Luckily I partnered with someone who doesn't feel the need to homogenise interests/lifestyle so Im free to be a nerd.