What is the definition of alteration in the context of building works?

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In the context of building works, alteration refers to a change made to an existing structure that does not involve a significant expansion or increase in the overall area of the building. This distinction is essential because alterations can encompass a variety of modifications, including internal renovations or cosmetic updates, which enhance the functionality or aesthetics of the building without extending its footprint or height.

This definition is critical in regulatory and zoning contexts, where changes that do not increase the overall area may not require the same level of review or permits as other significant modifications, such as additions or structural alterations that change the building's size or height. By understanding alteration in this way, stakeholders can better comply with building laws and regulations when planning renovations or improvements.