The fee is the same as if you were applying for a permit for that use. The most common are: PS462 for each additional dwelling unit built. PS462 is an application for a change of use of a property or land. It must be submitted to the planning department before any building permits can be issued for the changed use. A change of use is the alteration of a building's principal purpose without physically moving the location of the building. For example, if a factory wants to switch from manufacturing cars to making toys, it would need to obtain a new use permit because the construction of the factory would remain the same but its purpose would have switched from one activity to another that requires a different zoning classification. Changes of use are commonly requested by businesses that want to expand their operations or individuals who wish to carry out renovation projects. A use permit is required before any physical changes can be made to the exterior of the building, but internal renovations are generally not subject to prior approval from local authorities. You should seek legal advice before making any major changes to your business or home, especially if you're considering switching from a commercial license to a residential one. It's important to note that a change of use cannot be done as an after-thought.