This data represents footprints of buildings within Strathcona County. Buildings greater than 400 square feet were identified and roof corners were captured to create a polygon. The building footprints generated during the 2013 and 2015 ERJOI were updated using 2018 Lidar (captured in May 2018). The ground elevation comes from a DEM generated from the 2018 Lidar. The minimum and maximum roof elevation was generated from the DSM from the 2018 Lidar using 95% percentile values. Height and elevation values are in metres and the area is calculated in square metres.