Soon after Robert Grosvenor inherited the Eaton estate, he rebuilt the country house at Eaton Hall in Cheshire, and he also developed the London estate, creating the areas now known as Belgravia and Pimlico. Eaton had become "an unfashionable and run-down estate". The existing country house had been built for his grandfather, Sir Thomas Grosvenor, 3rd Baronet and designed by William Samwell. He appointed William Porden as architect, who had previously surveyed his London estate. The original plan was for the new house to cost £10,000 (equivalent to £ as of ), and for it to take two years to build. In the event it took just under ten years and cost over £100,000 (equivalent to £ as of ). The previous house was encased and surrounded by "every possible permutation of the gothic style". It included turrets, pinnacles, arched windows, octagonal towers, and buttresses (both regular and flying). Four new wings were added to the house. When the future Queen Victoria visited in 1832 at the age of 13, she wrote in her journal: "The house is magnificent". However others described it as being "as extravagant and opulent as the very latest upholsterer-decorators could make it". It was described as "the most gaudy concern I ever saw" and "a vast pile of mongrel gothic which ... is a monument of wealth, ignorance and bad taste".