If you're looking to add a golf simulator to your home, you might be wondering if you need planning permission. In some cases, you don't need planning permission for a golf simulator. Under permitted development rights, you are able to construct a garden room providing it does not exceed more than 50% of the original garden space. The garden room must have a maximum eaves height of 2.5m so it all depends on the layout of your golf simulator.nnHowever, if you're looking to install a golf simulator in your garage, you will need planning permission as this is not considered part of the original garden space. So before you start construction on your golf simulator, be sure to check with your local planning authority to see if you need planning permission.