Complex sentence: Davidson Day School was oriinally located at 404 Armour Street in Davidson, about 1.5 miles from its current location it was at this location from its establishment till 2007 when the new biulding at 750 Jetton Street in Davidson was finished.
Split into simpler sentences: Davidson Day School was originally located at 404 Armour Street in Davidson, about 1.5 miles from its current location. It was at this location from its establishment till 2007, when the new building at 750 Jetton Street was finished.