 While the reconstruction on the house was being undertaken , William Gibbs had rented <unk> Park in Devon . The total cost of redevelopment to create a house with 23 main bedrooms and 47 in total including servants ' accommodation came to £ 70 @,@ 000 ( equivalent to £ 6 @,@ 040 @,@ 000 in 2015 ) . The sum was equivalent to 18 months gross profit from all of Gibbs 's business interests . After completion of the main building works , Gibbs created more cash by selling shares in Antony Gibbs & Sons to his nephew Henry Hucks Gibbs ( later Lord Aldenham ) , which enabled him to purchase two adjoining properties – including Belmont to the east from his nephew George Lewis Monck Gibbs – to create a farming estate , founded on dairy production and forestry management . Added to further by later land purchases , at its peak the Tyntesfield estate spanned over 6 @,@ 000 acres ( 2 @,@ 400 ha ) , encompassing 1 @,@ 000 acres ( 400 ha ) of forestry , from Portishead in the north to south of the valley in which the main house lay . The house and estate employed more than 500 workers . 
