we are currently in the process of buying a detached house linked to next door by the 2 garages meeting. Would anyone know if we could get planning permission to put a bedroom above the garage or would it affect next door..??? thanks in advance. ian
Some problems here. The foundations of the garage will not support an upper floor.
The width of the garage is only about 8' wide and only 1 skin so your room will be less than this.
As you are using a party wall you will need to get permission from your neighbour. It will devalue both your houses as you are making it a semi rather than link detached. Your windows would probably overlook your neighbours garden and he can raise strong objections to this.