new walled kitchen gardens covering . The gardens stand to the west of the lake and include: A fig house, a peach house, a vinery, and other greenhouses. Wyatt's designs culminated in c. 1790 with the Great Barn, located in the park half a mile south-east of the obelisk. The cost of each farm was in the region of £1,500 to £2,600: Lodge Farm, Castle Acre, cost £2,604 6s. 5d. in 1797–1800. The lake to the west of the house, originally a marshy inlet or creek off the North Sea, was created in 1801–1803 by the landscape gardener William Eames. After his death, Coke was commemorated by the Leicester Monument, designed by William Donthorne and erected in 1845–1848 at a cost to the tenants of the estate of £4,000. The monument consists of a Corinthian column high, surmounted by a drum supporting a wheatsheaf and a plinth decorated with bas-reliefs carved by John Henning Jr. The corners of the plinth support sculptures of an ox, sheep, plough and seed-drill. Coke's work to increase farm yields had resulted in the rental income of the estate rising between 1776 and 1816 from £2,200 to £20,000, and had considerable influence on agricultural methods in Britain. In 1850, Thomas Coke, 2nd Earl of Leicester, called in the architect William Burn to build new stables to the east of the house, in collaboration with W. A. Nesfield, who had designed the parterres. Work started at the same time on the terraces surrounding the house. This work continued until 1857 and included, to the south and on axis with the house, the monumental fountain of Saint George and the Dragon dated c. 1849–57 sculpted by Charles Raymond Smith. To the east of the house and overlooking the terrace, Burn designed the large stone orangery, with a three-bay pedimented centre and three-bay flanking wings. The orangery is now roofless and windowless. Holkham today The cost of the construction of Holkham is thought to have been in the region of £90,000. This vast cost nearly ruined the heirs of the 1st Earl, but had the result that they were financially unable to alter the house to suit the whims of taste. Thus, the house has remained almost untouched since its completion in 1764. Today, this perfect, if severe, example of Palladianism is at the heart of a thriving private estate of some . Though open to the public