Electric driveway gates planning permission

I am looking to submit a planning application for a an electric cantilever driveway gate and just wanted to have a nosy on the local council planning permission page to see what others have done but I cannot seem to find any planning permission for any of the other properties in my area with driveway gates in places which to me look well over 1m tall and are all adjacent to a highway. Can anyone advise why this may be? I am looking to have mine at 5ft 9 tall but don’t want to chance it and just have them installed in case anyone complains. Thanks