▁for ▁the ▁building ▁was ▁granted ▁in ▁June ▁ 2 0 0 6 . ▁Dem ol ition ▁of ▁the ▁previous ▁building ▁on ▁the ▁site ▁- ▁the ▁ 1 9 5 0 s ▁office ▁block ▁Bow ater ▁House ▁- ▁took ▁place ▁between ▁July ▁and ▁December ▁ 2 0 0 6 . ▁Const ruction ▁work ▁began ▁in ▁January ▁ 2 0 0 7 . ▁The ▁super structure ▁of ▁the ▁building ▁was ▁completed ▁in ▁March ▁ 2 0 0 9 . ▁F itting - out ▁of ▁the ▁building ▁began ▁in ▁April ▁ 2 0 0 9 . ▁In ▁August ▁ 2 0 1 0 , ▁a ▁pent house ▁in ▁the ▁development ▁was ▁rum oured ▁to ▁be ▁sold ▁for ▁£ 1 4 0 ▁million , ▁making ▁it ▁the ▁most ▁expensive ▁resident ial ▁property ▁in ▁Britain . ▁ ▁It ▁was ▁also ▁announced ▁that ▁Mc L aren ▁Autom ot ive ▁would ▁be ▁opening ▁a ▁car ▁show room ▁in ▁the ▁building ▁in ▁early ▁ 2 0 1 1 . ▁As ▁part ▁of ▁the ▁construction ▁of ▁One ▁Hy de ▁Park , ▁a ▁new ▁entrance ▁to ▁Kn ights bridge ▁t ube ▁station ▁was ▁built . ▁This ▁opened ▁in ▁December ▁ 2 0 1 0 ▁ ▁A ▁pent house ▁was ▁sold ▁to ▁One ▁Hy de ▁Park ▁developer ▁Christian ▁C andy , ▁who ▁reported ly ▁paid ▁£ 3 1 ▁million , ▁" about ▁£ 1 0 0 ▁million ▁less ▁than ▁the ▁asking ▁price ". ▁In ▁January ▁ 2 0 1 1 , ▁a ▁newspaper ▁report ▁at ▁the ▁time ▁of ▁the ▁development ' s ▁launch ▁party