By BMTQS | www.bmtqs.com.au | Submitted May 2009 The age of the building can be determined by obtaining council documents with dates pertaining to the original application approval date or the Occupancy Certificate date and final inspection date. Similar methods are used Australia wide, however some properties are privately certified. BMT conduct the relevant searches required to accurately determine the age of a building. These include historical council searches regarding lodged development applications, as well as Occupancy Certificates and certified final inspections.