Which dimensions of the building should be used for determining VA/sq ft area?

The correct choice is outside dimensions, as these measurements give a complete overview of the building's footprint and are critical for various calculations, including determining the overall square footage for valuation purposes. Using outside dimensions accounts for the entire structure, including external walls and any brackets or elements that extend outward from the primary structure. This approach helps to ascertain the total area that a building occupies on a site, which is essential when considering property assessments and zoning regulations.

Inside dimensions, while useful for understanding usable space within the building, do not provide an accurate assessment of the property's exterior footprint. Average and minimum dimensions might not reflect the true size of the building, as they can exclude important features or misrepresent the overall area. Therefore, outside dimensions are the most reliable and comprehensive option for calculating the area required for valuation and other regulatory purposes.