granny flat
A "granny flat" is a small, self-contained living space typically located on the same property as a larger home. It is often designed to accommodate elderly family members, hence the name, but can also serve as a guest house or rental unit. Granny flats usually include essential amenities like a kitchen, bathroom, and living area.
These units can be built as separate structures or converted from existing spaces, such as garages or basements. In many places, local governments have specific regulations regarding the construction and use of granny flats, which can vary by region or city.