New additions to your house such as walls, doors, windows and even a fireplace, require a permit. … Most electrical or plumbing renovations need a permit, such as bathroom remodels. If you plan to do an interior remodel and only change the visual elements of your bathroom, a permit is not required.
A building permit is needed for many bathroom remodels but not always. Structural, electrical or plumbing changes need permits. Changing a fixture does not.