In Amsterdam there is a great housing shortage for people who want to live in the city. This is why people who are looking for a reasonably priced house have to comply with the rules set by the Amsterdam authorities, the Dienst Wonen.

For a self-contained house with a rent of under € 520,12 (index july 1st 2006) you need residence permission ("huisvestingsvergunning") from the Dienst Wonen, except for Amsterdam South East. To get a residence permit you have to work or study in the Amsterdam area or you have to have lived there for at least two years.
If that is not the case, you will probably have to accept a room in someone else's house or in the attic. Usually you can use your landlord's kitchen, toilet and bathroom.