A building permit is almost never required for our self-assembly kits. However, different regulations apply in different countries of the European Union or even in different regions of the same country. Our apartment tent kits do not require permanent foundations, which is why they are generally considered temporary structures that do not require planning permission in most places. Planning permission is generally not concerned with the size of the structure, but with its location, external appearance and intended use. In most cases, you will need planning permission if you want to erect a tent as a semi-permanent structure in a National Park, Areas of Outstanding Natural Beauty and World Heritage Sites. The only real restrictions in conservation areas, which are much more common, relate to buildings erected to the side of properties. In the UK, the regulations for outbuildings may also apply to apartment tent kits from us, as well as sheds, greenhouses and garages, and other garden outbuildings such as swimming pools, ponds, sauna cabins, dog kennels, enclosures (including tennis courts) and many other types of structures required for the use of the dwelling house. Outbuildings are considered approved structures for which planning permission does not need to be applied for, provided all conditions are met. Further details can be found in the local building regulations, which are usually provided by government agencies, or you can contact your local planning office for detailed information.