However, much of the significant development of the house took place after it was acquired by the East India Company trader, Richard Barwell, in the mid-18th century.

A degree of re-modelling took place when Barwell commissioned Sir William Chambers to re-design much of the interior in 1762.

[4][5] Various sources state that the mathematician and writer, Ada Lovelace, lived at Sandown from 1841 until her death in 1852.

[6][7][8][9][10][11][a] The house was then became the home of the Governor of the Bank of England, James Pattison Currie, in the mid-19th century.

[15] After Esher Urban District Council was formed in 1894, it was initially based at Brabant Villa in Thames Ditton; however, by the end of the First World war, these premises were inadequate and, in 1922, the council acquired Sandown House to serve as Esher Town Hall.