In the mid-19th century, with nearby Devon Great Consols mine at Blanchdown one of the biggest copper mining operations in the world, Tavistock was booming again, reputedly earning the 7th Duke of Bedford alone over £2,000,000. A statue in copper of the 7th Duke stands in Guildhall Square. The Duke built a 50,000 imperial gallon (230 m³) reservoir to supply the town in 1845, as well as a hundred miners' houses at the southern end of town, between 1845 and 1855. There is a strong, recognisable vernacular "Bedford style" of design, exemplified most strikingly in Tavistock's Town Hall and "Bedford Cottages" ubiquitous across Tavistock and much of the local area to the north and west, where the Bedfords had their estate and summer "cottage" at Endsleigh House and Gardens, which since 2005 is the Hotel Endsleigh run by Alex Polizzi.