Coal house conversion to utility
Changed a coal house to a utility room nearly 35 years ago. Originally the coal house was only connected to the house by an arched single brick wall. So the access was open to weather. I roofed the coal house, added 2 doors and did some brickwork. Very little. I knocked down 2 internal walls. Would I have required any permissions at that time and would I need them now? Still single brick. Looking to sell.