▁the ▁house ▁built ▁by ▁E ber ▁B unker ▁in ▁the ▁second ▁de cade ▁of ▁the ▁ 1 9 th ▁century ▁and ▁not ▁the ▁building ▁ear mark ed ▁in ▁ 1 9 7 3 ▁for ▁conservation . ▁The ▁kitchen ▁block ▁was ▁later ▁proved ▁to ▁have ▁been ▁built ▁▁ 1 8 6 5 , ▁some ▁ 3 0 ▁years ▁after ▁B unker ' s ▁death . ▁ ▁The ▁restored ▁Col ling wood ▁was ▁officially ▁opened ▁by ▁the ▁Prime ▁Minister ▁of ▁Australia , ▁the ▁Hon ▁G ough ▁Whit lam , ▁M . P ., ▁on ▁ 6 ▁September ▁ 1 9 7 5 . ▁Since ▁ 1 9 7 5 ▁Col ling wood ▁House ▁has ▁operated ▁as ▁a ▁house ▁museum ▁under ▁the ▁management ▁of ▁the ▁Liverpool ▁Regional ▁Museum . ▁ ▁The ▁Royal ▁Australian ▁Institute ▁of ▁Arch itect s ▁( NS W ▁Division ) ▁awarded ▁the ▁inaug ural ▁" Green way ▁Award " ▁to ▁Col ling wood ▁in ▁ 1 9 7 9 . ▁ ▁On ▁ 3 ▁July ▁ 2 0 0 9 , ▁Col ling wood ▁P rec inct ▁Ab original ▁Place ▁was ▁declared ▁under ▁the ▁National ▁Park s ▁& ▁Wild life ▁Act ▁ 1 9 7 4 . ▁National ▁Park s ▁& ▁Wild life ▁Act ▁ 1 9 7 4 ▁by ▁then ▁Minister ▁for ▁Cl imate ▁Change ▁and ▁the ▁Environment , ▁Car mel ▁T eb but t . ▁This ▁recogn ised ▁the ▁special ▁significance ▁of ▁the ▁Ab original ▁Place ▁include ▁the ▁r idge ▁line ▁" high ▁ground " ▁view ▁meeting ▁place ▁for ▁the ▁D