Mansfield Street

I have taken this out of an old book called 'Memorials of Liverpool':

The noble mansion on the east side, at the corner of Mansfield Street, was built about 1825 by Mr. Samuel Sandbach, who filled the office of mayor in 1831. He resided only a short time in the house, and was succeeded by Mr. Thomas Colley Porter in 1827.

I don't know if Mr. Sandbach owned this mansion, and how much wealth he had.