What does 'conversion' mean in building terminology?

In building terminology, 'conversion' specifically refers to the change in the use or occupancy of a structure, which often entails different regulations or requirements. This may involve transforming a building originally designed for one purpose into another, such as converting an office space into apartments or changing a warehouse into retail space. The new use typically comes with specific code compliance related to safety, accessibility, and occupancy limits that differ from the structure's previous designation. Understanding this concept is crucial in building law, as it ensures that the changes adhere to the appropriate zoning laws and building codes meant to maintain the safety and welfare of occupants and the general public.

The other options describe various actions related to a building, but they do not capture the essence of 'conversion.' Changing materials pertains to renovation or rehabilitation rather than a shift in use; increasing a building's height is usually referred to as an expansion or addition; and adding new sections is also an expansion, not a conversion. Each of these actions may involve separate legal considerations and requirements that differ from the idea of a conversion.