Do I need a special base or planning permission?

You don’t need a special base, but the ground must be level and able to hold up to 2,500 kg once the tub is full, depending on its size. Leave at least 50 cm clear on all sides. Most freestanding garden hot tubs don’t need planning permission, but check with your council if you live in a listed building or conservation area. In a smoke control area, outdoor burners such as chimineas and pizza ovens are allowed, and stricter rules apply only where a chimney sits on the roof of a building, so check with your council before you buy.. What you need before installation.