ICC Permit Technician Practice Exam

In the context of zoning and building codes, a nonconforming structure is one that does not comply with current zoning regulations but was lawful when it was built. One critical aspect of nonconforming structures is the restriction on expanding or altering them in ways that would increase their nonconformity.

The addition of extra floor area represents a significant change that could exacerbate the nonconformance of the structure. This could further violate zoning laws, which are designed to promote uniformity and safety in a given area. Increasing the floor area could also impact neighboring properties and their rights, leading to potential conflicts with local regulations.

On the other hand, repairs, maintenance, and structural alterations, when conducted within specific limits, are typically allowed for nonconforming structures. Repairs and maintenance activities are necessary for the upkeep and safety of the existing building and do not fundamentally alter its status. Structural alterations may be permitted as long as they do not increase the nonconformity or violate current codes. Thus, the restriction on adding additional floor area is a key reason why this activity is not permissible for nonconforming structures.