Washer and Dryer are in the kitchen under the worktop. I have quite a large kitchen and this is fairly common in the UK. Alternatively they can be housed in a large pantry, garage or basement if you have one.
Also, if your socks smell so bad that you can smell them while in the room with them, especially if they're in a sealed, water tight space then you need to get more and change them more often.
It's fairly convenient given that the kitchen has a large open space in the centre (fuck auto correct trying to Americanize my Queen's English) and is next to the back doors if I either need a plumber or to get them in/out.