You arrange permission for the spot. This is general guidance, not legal advice and no guarantee. Rules differ per municipality. Always check with your municipality or the Omgevingsloket (the Dutch permit portal).
Placing a unit briefly in your own garden is often not a problem. Do check your municipality's rules.
For longer periods other rules may apply. Ask your municipality what applies to living temporarily on site during a renovation.
A care unit (mantelzorgwoning) at your home can, under conditions, be placed without a permit. Rules apply, for example about where on the plot. Ask your municipality.
You also need permission from your landlord or owners' association.
The client or site owner decides. The unit must fit into the site layout.
The organiser or site owner decides. Without their permission we don't deliver.
Check whether extra sleeping places fit your permit and your municipality's rules.
Not without permission from the municipality.