A commercial building that is a legal nonconforming use in a residential neighborhood would be considered over improvement
A commercial building is a building where commercial activities take place. Commercial buildings include office buildings, retail spaces, warehouses, etc. This is slightly different from commercial real estate, which also includes multi-family housing such as condominiums.
Commercial property refers to all property used for business activities. Types of commercial real estate include hospitals, assembly plants, warehouses, shopping malls, office space, or other locations of business.
A simple definition of commercial architecture is an architecture that focuses solely on buildings and spaces that are used for commercial purposes. This includes offices, retail stores, and other facilities where commercial business is conducted.
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