▁of ▁a ▁new ▁building ▁in ▁the ▁style ▁of ▁a ▁Scottish ▁bar onial ▁style ▁castle . ▁The ▁architect ▁was ▁J ens ▁Z et l itz ▁Mon rad ▁Ki ell and , ▁who ▁would ▁later ▁draw ▁the ▁Ber gen ▁Railway ▁Station ▁and ▁the ▁brick ▁buildings ▁at ▁Bry gg en . ▁The ▁construction ▁was ▁finished ▁in ▁ 1 9 0 0 , ▁and ▁Mich elsen ▁with ▁family ▁moved ▁in ▁the ▁next ▁year . ▁He ▁deleg ated ▁the ▁task ▁of ▁converting ▁the ▁far ml ands ▁surrounding ▁the ▁building ▁into ▁a ▁park ▁to ▁gard ener ▁O lav ▁Mo en , ▁who ▁designed ▁it ▁as ▁an ▁English ▁park . ▁Bar ring ▁his ▁years ▁as ▁Prime ▁Minister ▁of ▁Norway ▁from ▁ 1 9 0 5 ▁to ▁ 1 9 0 7 , ▁Christian ▁Mich elsen ▁lived ▁at ▁Gam le h au gen ▁for ▁the ▁remainder ▁of ▁his ▁life . ▁ ▁Royal ▁residence ▁▁ ▁Following ▁Mich elsen ' s ▁death ▁in ▁ 1 9 2 5 , ▁his ▁closest ▁friends ▁and ▁colle agues ▁initi ated ▁a ▁national ▁fund - ra ising ▁campaign ▁which ▁sought ▁to ▁collect ▁the ▁money ▁needed ▁for ▁the ▁state ▁to ▁purchase ▁Gam le h au gen , ▁as ▁well ▁as ▁create ▁a ▁fund ▁to ▁pay ▁for ▁the ▁costs ▁of ▁operation ▁and ▁maintenance . ▁While ▁the ▁campaign ▁did ▁not ▁raise ▁the ▁goal ▁of ▁one ▁million ▁N OK , ▁the ▁state ▁did ▁never theless ▁buy ▁the ▁property . ▁The ▁fund ▁eventually ▁ran ▁dry , ▁and ▁the ▁state ▁has ▁paid ▁for ▁the ▁up keep ▁since ▁ 1 9 6 5 .