es ▁of ▁the ▁ar cade . ▁The ▁base ▁of ▁the ▁building ▁is ▁rendered ▁in ▁a ▁band ed ▁pattern ▁with ▁arch es ▁opening ▁to ▁the ▁under cro ft . ▁The ▁bay ▁in ▁the ▁centre ▁of ▁the ▁symmet rical ▁fac ade ▁is ▁orn ament ed ▁with ▁pil aster s ▁and ▁narrow ▁st ained ▁glass ▁arch ed ▁windows ▁with ▁decor ative ▁ped iments . ▁A ▁large ▁ped iment ▁with ▁a ▁cross ▁mounted ▁on ▁its ▁a pe x ▁sur mount s ▁the ▁central ▁bay . ▁Ad jo ining ▁the ▁ped iment ▁is ▁a ▁par ap et ▁with ▁classical ▁bal ust ers ▁that ▁conce al ▁the ▁edge ▁of ▁the ▁g able ▁roof . ▁The ▁st air ▁tower , ▁which ▁pro tr udes ▁from ▁the ▁centre ▁of ▁the ▁central ▁bay , ▁has ▁an ▁orn ate ▁z inc ▁roof ▁with ▁small ▁arch ed ▁d orm er ▁windows ▁and ▁decor ative ▁round ▁and ▁arch ed ▁st ained ▁glass ▁windows . ▁The ▁symmetry ▁of ▁the ▁fac ade ▁is ▁further ▁emphas ized ▁by ▁a ▁set ▁of ▁wide ▁m ason ry ▁st airs ▁position ed ▁on ▁axis ▁with ▁the ▁st air ▁tower ▁that ▁lead ▁down ▁to ▁Ross ▁O val . ▁ ▁The ▁southern ▁fac ade ▁of ▁the ▁building ▁is ▁much ▁pla iner ▁than ▁the ▁northern ▁fac ade ▁and ▁over look s ▁the ▁Form er ▁Qu ad rangle ▁( Ed mund ▁R ice ▁Mall ), ▁an ▁extension ▁of ▁the ▁cour ty ard ▁space ▁at ▁the ▁rear ▁of ▁the ▁Main ▁Building . ▁With ▁the ▁exception ▁of ▁the ▁band ed ▁base , ▁the ▁walls ▁are ▁simply ▁rendered