Hi all

I have inserted a map of a building using the default projection but checking other software / websites like Google Earth, Nearmap and Bing maps, all of them the width of the building match but Online Maps. The width of the building is roughly 81m but in Online Maps is 100m, a big difference. Does anyone know if we have to scale the image? If the scale changes, then the coordinates will change, right?

 Many thanks in advance