Outdoor domestic swimming pools can be either in-ground or above ground and may be constructed using various methods, such as a vinyl liner, concrete with tiles, or pre-formed fibreglass shell.
In many cases, planning permission is not required for installing an outdoor pool, as they may fall under permitted development rights, provided they comply with specific limits and conditions. These limits and conditions can be found in the outbuildings guidance on Planning Portal.
Always contact your local planning authority if you are unsure.
Building regulations approval is not normally required for outdoor swimming pools, provided it is not enclosed. However, you should check with your local council's building control team if you are unsure if approval is needed.