count ▁Cl erm ont ▁to ▁designs ▁by ▁the ▁architect ▁William ▁Pil k ington . ▁Pil k ington ▁was ▁a ▁pup il ▁and ▁assistant ▁to ▁Sir ▁Robert ▁Taylor ▁( arch itect ▁of ▁the ▁Bank ▁of ▁England ). ▁ ▁Following ▁Vis count ▁Cl erm ont ' s ▁death ▁without ▁issue ▁Cl erm ont ▁Est ate ▁was ▁sold ▁to ▁Sir ▁Francis ▁Ly tt leton ▁Hol yo ake ▁Good ric ke ▁in ▁ 1 8 4 4 ▁and ▁in ▁ 1 8 5 8 ▁it ▁was ▁purchased ▁by ▁the ▁ 2 nd ▁Duke ▁of ▁Well ington . ▁In ▁ 1 8 6 3 ▁he ▁convey ed ▁the ▁Hil borough ▁and ▁Cl erm ont ▁Est ates ▁to ▁John ▁Rem ington ▁M ills . ▁In ▁ 1 8 6 9 ▁M ills ▁bought ▁the ▁Wat ton ▁estate ▁and ▁an ▁out lying ▁farm ▁at ▁Tot ten hill ▁in ▁Nor folk . ▁His ▁son ▁Joseph ▁Tru eman ▁M ills ▁added ▁the ▁South ▁P icken ham ▁estate , ▁Nor folk . ▁ ▁The ▁last ▁owner ▁of ▁Cl erm ont ▁Hall ▁was ▁Sir ▁Richard ▁Prince - Smith ▁who ▁acquired ▁the ▁estate ▁in ▁ 1 9 6 6 ▁and ▁sold ▁it ▁in ▁ 1 9 9 7 . ▁The ▁estate , ▁which ▁originally ▁extended ▁to ▁, ▁was ▁broken ▁up ▁from ▁ 1 9 7 7 ▁on wards . ▁Much ▁of ▁it ▁is ▁now ▁owned ▁by ▁the ▁UK ▁Ministry ▁of ▁Def ence . ▁ ▁Cl erm ont ▁House ▁was ▁built ▁in ▁ 1 9 7 1 / 2 ▁in ▁the ▁w alled ▁garden ▁of ▁Cl