Garden rooms are such a good idea for so many reasons there defiantly on my xmas list. Great value for money is just a start , they offer you a different aspect of living outdoors an escape at the end of the garden. The technology of new products can water proof and retain heat so efficiently that it can make these a welcome retreat 24 7 365 days of the year!
As long as you keep them below 2.4 meters and the floor size below 30 square meters no planning is needed. You can choose your own design and measurements to suit your garden, windows and doors to suit your views and to optimise natural light. Doors and windows are double glazed with toughened glass and installed with high security locks so normal house insurance policy covers all.