If you want to transform the look of your granny flat, consider installing new interior doors. You can add to the beauty of your granny flat with the right style of doors. Think ahead and choose a door that will look great if you plan to remodel your kitchen, for example. For bedroom doors, explore the different materials that can provide more privacy. Try looking for heavier duty doors that can help prevent sound from escaping. There are doors that will help maintain the quiet in your bedrooms without needing to be completely sound proof.