Garden buildings come in all shapes and sizes, and you can choose the size that suits you best. However, there are a few upper limits to be aware of if you don’t want to apply for planning permission. For example, the overall height should be no more than 3 metres, but it can be 4 metres for a dual-pitched roof. Also, the maximum size should be no more than 10m2. The best thing to do is ask us during the design stage and we will let you know whether you are likely to need planning permission.