It is negotiable if you want to bring your own furniture. However, you can not bring your own furniture prior to our consent. We want to prevent any damages made by moving furniture or bringing furniture. If you want to make adjustments to the room, you'll have to sign a liability contract. Be aware that some furniture may be attached to floors and walls, so it cannot be moved.
Please note that you are not allowed, amongst others, to make adjustments to your accommodations, like making holes in the wall. Appliances such as your own washing machine, dryers, heaters, or fridges are not allowed.