The American Society for Testing and Materials (ASTM) AHP/Expert Choice software product, ASTM_EC, is used to model how a private company would go about selecting the best headquarters building from among a small set of candidate properties. This "building selection problem" illustrates not only how to draw attributes from the ASTM model template, included in the software product, but also how to add a new attribute which is of interest to private-sector decision makers. The model objectives are a subset of those contained in ASTM's list of building related attributes.