0 - acre ▁tract ▁bounded ▁by ▁Sun set ▁Bou lev ard ▁on ▁the ▁north , ▁Santa ▁Mon ica ▁Bou lev ard ▁on ▁the ▁south , ▁C res cent ▁Avenue ▁( l ater ▁renamed ▁Fair f ax ▁Avenue ) ▁on ▁the ▁east ▁and ▁S weet zer ▁Avenue ▁on ▁the ▁west , ▁which ▁Hay ▁had ▁sub div ided ▁and ▁developed ▁starting ▁in ▁ 1 9 0 5 . ▁ ▁The ▁estate ' s ▁original ▁address ▁was ▁ 8 0 8 0 ▁Sun set ▁Bou lev ard ▁but ▁was ▁later ▁changed ▁to ▁ 8 1 5 2 . ▁It ▁occupied ▁a ▁ 2 . 5 ▁a cre ▁lot ▁that ▁front ed ▁Sun set ▁Bou lev ard ▁and ▁was ▁bounded ▁by ▁C res cent ▁He ights ▁Bou lev ard ▁on ▁the ▁east ▁and ▁Hay ven h urst ▁( now ▁sp elled ▁H aven h urst ) ▁Drive ▁on ▁the ▁west . ▁The ▁property ' s ▁southern ▁boundary ▁was ▁also ▁the ▁border ▁between ▁the ▁Hollywood ▁district ▁of ▁the ▁city ▁of ▁Los ▁Angeles ▁and ▁the ▁then - un in cor por ated ▁area ▁that ▁later ▁became ▁the ▁city ▁of ▁West ▁Hollywood . ▁ ▁Hay ▁and ▁his ▁wife ▁K atherine ▁personally ▁super vised ▁construction ▁of ▁the ▁estate . ▁The ▁house ▁had ▁twelve ▁rooms ▁and ▁four ▁bath rooms . ▁The ▁finish es ▁were ▁all ▁in ▁Circ ass ian ▁wal nut ▁that ▁the ▁H ays ▁had ▁collected ▁on ▁a ▁trip ▁to ▁the ▁Philippines ▁in ▁ 1 9 1 2 . ▁The ▁interior ▁walls ▁were ▁covered ▁in ▁canvas ▁and ▁hand - p aint