Room adverts sometimes come with house rules written as though tenancy law stops at the bedroom door: notice measured in days, rent set at whatever the market will bear, protections treated as an apartment-only luxury. Shared and single-room lets carry real statutory rights, with one narrow exception that catches people out.
More than most people assume. Even an onzelfstandige woonruimte — a room with a shared kitchen or bathroom — carries statutory huurbescherming, meaning your landlord generally needs a valid legal ground to end the tenancy, not just a text saying you're out by the weekend. The one real carve-out is hospitaverhuur, where the landlord lives in the same home: that comes with a 9-month proeftijd (trial period) during which they can end things without giving a reason, after which normal protection kicks in exactly as it would for an apartment. Rooms get their own, smaller WWS points calculation, so it's worth checking whether your rent is fair against it, and the same servicekosten transparency rules and annual rent-increase caps apply as anywhere else — landlords renting rooms sometimes act like different rules apply to them, and they mostly don't.