Dutch houses are like suitcases.

Everything must be packed in, as compact as possible, because of limited space.

1. Living room is trousers - taking up the bulk
2. Bedroom is shirts - vital, yet less bulky and more flexible
3. Kitchen is shoes - takes space, but can be fitted in with others (e.g. bathrooms)
4. Bathroom and toilet are socks - just stuff it somewhere. If necessary, separate the pair.

The design keeps changing from one house to another - after all, no one ever packs his suitcase the same way.