A granny flat is a small, self-contained living space typically located on the same property as a larger home. These units are often used to accommodate elderly family members, hence the name, but they can also serve as guest houses, rental units, or home offices. Granny flats usually include a bedroom, bathroom, and kitchenette, providing residents with privacy and independence. In many regions, building a granny flat can be a cost-effective way to increase housing options without the need for extensive construction. Local regulations often govern their size, design, and placement, so it's important to check with local authorities before starting a project.