Building workshop

Hi, Between your property and the workshop is no legal requirement for leaving a distance but if is attached to the property it can be considered as an extension. Between workshop and boundary: 1. if the distance is less than 2 m your workshop can’t be higher that 2.5m 2. If the distance is more than 2 m, your workshop can be 3 m high if flat roof or 4 m if pitch roof. Usually planning permission is not required, can be built under permitted development, Building control is required. The best advise is to check with an architect, this are general rules but depends on your area some rules can be different.