A garden room has quietly become one of the most valuable additions to a British home: a considered, separate space for work, rest or hobbies, without the upheaval of an extension. Choosing the right one means balancing practicality with the same qualities we look for indoors, proportion, materials and a sense of permanence. The best garden rooms feel less like garden buildings and more like a natural continuation of the house. Here is what is worth considering before you cho