If you want to demolish your granny, you should be aware that a demolition permit is required before any work can begin. Whether you're demolish a part of the structure or the entire granny flat, a demolition permit is required to protect the existing home and its character. Here are the steps you need to follow to ensure the demolition process goes as smoothly as possible. Read on for helpful tips. We have listed below the steps to follow when deciding on a demolition permit..