Mckissock General Appraiser Sales Comparison Approach Practice Test

Gross Building Area includes which components?

Stairwells, hallways, and storage areas Parking spaces Exterior walls Roof area

Correct Answer:

Stairwells, hallways, and storage areas

Explanation:

Gross Building Area is the total floor area contained within the building’s exterior walls, counting every enclosed space on all floors. That means circulation and service areas such as stairwells, hallways, and storage rooms are included because they occupy floor space inside the building envelope and contribute to the overall footprint. Parking areas are outside the building and thus not part of GBA, and exterior walls or the roof define the boundary rather than adding interior floor area. In practice, you’d sum the floor area of each level, including enclosed spaces like mezzanines if applicable, to arrive at the total GBA.

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