▁Building ) ▁in ▁ 1 9 7 5 . ▁The ▁original ▁wooden ▁ver and ah s ▁on ▁the ▁northern ▁fac ade ▁of ▁the ▁ 1 9 0 0 ▁South ▁Wing ▁were ▁replaced ▁in ▁concrete ▁and ▁the ▁South ▁Wing ▁was ▁extended ▁east ▁to ▁provide ▁a ▁new ▁inf irm ary . ▁Const ruction ▁was ▁pl ag ued ▁by ▁industrial ▁un rest ▁and ▁the ▁main ▁contract or ▁went ▁into ▁liquid ation . ▁ ▁Ext ensions ▁( mid - 1 9 8 0 s ) ▁ ▁The ▁Main ▁Building ▁reached ▁its ▁current ▁form ▁during ▁a ▁development ▁program ▁that ▁comm enced ▁in ▁the ▁mid - 1 9 8 0 s . ▁At ▁the ▁beginning ▁of ▁the ▁ 1 9 8 0 s , ▁the ▁ever - in cre asing ▁size ▁of ▁the ▁school ▁and ▁the ▁per enn ial ▁problem ▁of ▁in ade qu ate ▁fund ing ▁led ▁to ▁the ▁rem od elling ▁of ▁the ▁administration ▁of ▁the ▁school . ▁A ▁business ▁manager ▁was ▁appointed ▁and ▁an ▁Ad vis ory ▁Board ▁established . ▁In ▁ 1 9 8 4 , ▁Civil ▁& ▁C iv ic ▁comm enced ▁work ▁on ▁a ▁Camp us ▁Development ▁Str ategy ▁and ▁a ▁Foundation ▁was ▁established ▁to ▁raise ▁funds ▁for ▁the ▁proposed ▁develop ments . ▁ ▁Work ▁began ▁on ▁implementing ▁this ▁strategy ▁in ▁ 1 9 8 5 . ▁The ▁Qu ad rangle ▁was ▁ref urb ished ▁and ▁the ▁following ▁year ▁an ▁administration ▁block ▁was ▁ere cted ▁to ▁the ▁east ▁of ▁the ▁Dun ne ▁Memorial ▁Block . ▁A ▁Man ual ▁Arts ▁Block ▁was ▁built ▁in