Our row of new build houses have gardens that slope away from the house. Our neighbours have recently just levelled their garden by building decking that is level with the house, which means by the end of the garden they’re torso height above the fence. Not only that but they’ve built a pergola at the end of the garden and put a hot tub. This pretty much touches our boundary fence and means they can easily see into our garden when they use it. They said they would put trellis to screen but instead they’ve put fairy lights all over it! I think they need planning permission to raise the level that much but we’re going insane from the lights and the noise of the hot tub. I’m tempted to call the planning office but I don’t know if I’m being unreasonable? HELP