on . ▁Later ▁his ▁own ▁house ▁in ▁Bright on , ▁built ▁in ▁ 1 9 2 5 , ▁was ▁also ▁made ▁of ▁concrete , ▁this ▁time ▁in ▁a ▁char ming ▁Old ▁English ▁style . ▁From ▁the ▁later ▁ 1 9 2 0 s ▁he ▁special ised ▁in ▁large ▁resident ial ▁hot els ; ▁the ▁first ▁was ▁the ▁design ▁for ▁the ▁Alexander ▁Hotel ▁( now ▁the ▁Sav oy ▁Hotel ) ▁in ▁Sp encer ▁Street , ▁which ▁opened ▁in ▁ 1 9 2 8 ▁with ▁ 2 0 0 ▁bed rooms , ▁all ▁with ▁bath rooms , ▁an ▁innov ation ▁at ▁the ▁time . ▁In ▁ 1 9 3 4 ▁he ▁o vers aw ▁the ▁design ▁and ▁construction ▁of ▁the ▁up market ▁Che v ron ▁Hotel ▁in ▁St ▁K ilda ▁Road ▁in ▁only ▁six teen ▁weeks , ▁seen ▁as ▁important ▁for ▁Melbourne ' s ▁cent en ary ▁celebr ations ▁of ▁that ▁year . ▁The ▁Hotel ▁Australia ▁ ▁in ▁Collins ▁Street ▁was ▁the ▁most ▁modern ▁in ▁the ▁city ▁in ▁ 1 9 3 9 , ▁and ▁became ▁the ▁social ▁ep ic entre ▁of ▁Melbourne ▁in ▁the ▁ 1 9 4 0 s ▁( it ▁was ▁demol ished ▁in ▁ 1 9 8 9 ). ▁ ▁In ▁the ▁early ▁ 1 9 5 0 s , ▁Per rott ' s ▁son , ▁also ▁Les lie ▁M ▁Per rott ▁but ▁known ▁as ▁Les ▁Per rott ▁( 1 9 2 6 – 2 0 0 1 ), ▁joined ▁the ▁firm , ▁as ▁well ▁as ▁the ▁dynamic ▁young ▁Ron ald