The house is surrounded by formal gardens of in a deer park of about , which are listed at Grade II* in the
National Register of Historic Parks and Gardens. In the gardens and deer park are a number of structures.
Gardens To the west of the house is the former
mill pond. From the south side a lawn slopes down to another pond beyond which is a small
ravine with a stone bridge, this area being known as
Killtime. To the west of the lawn is the sunken Dutch Garden, which was created by William Legh. It consists of formal flower beds with a central fountain. To the west, south and east of the orangery are further formal flower gardens, including rose gardens.
Deer park The park was enclosed in the 14th century by Piers Legh I. In the 17th century Richard Legh planted avenues of
sycamore and
lime trees. Richard's son, Peter Legh XII carried out more extensive tree-planting in the park, giving it its current appearance.
Red deer descended from the original deer present when the park was enclosed graze in the grounds, as do
Highland cattle. Formerly an unusual breed of wild white cattle with red ears grazed in the park, but they became extinct in 1884. Sheep also graze in the park. The
Gritstone Trail and the
Peak District Boundary Walk long-distance footpaths both cross the park.
Structures The most obvious structure in the park, other than the house, is a tower called the Cage which stands on a hill to the east of the approach road to the house (). It was originally a hunting lodge and was later used as a park-keeper's cottage and as a lock-up for prisoners. The first structure on the site was built about 1580; this was taken down and rebuilt in 1737, possibly to a design by Leoni for Peter Legh X. The tower is built in buff sandstone
rubble with
ashlar sandstone dressings. It is square in plan, in three storeys, with attached small square towers surmounted by
cupolas at the corners. The Cage is a Grade II* listed building. Also in the park is the Paddock Cottage which was erected by Peter Legh IX and restored in the early 21st century. To the east of this are the remains of the Stag House (). To the left of the house in Lantern Wood is a
belvedere known as the Lantern (). It is built in sandstone and has three storeys and a spire; the lowest storey is square in plan while the other storeys and the spire are octagonal. The top storey and spire date from about 1580 and originally formed a
bellcote on the north gatehouse; this was removed during the restoration of the house by Wyatt and rebuilt on the present site. It is a Grade II* listed building. Immediately to the north-east of the house is the
Orangery which was designed in 1862 by
Alfred Darbyshire. The Orangery is joined to the house by a covered passage known as the Dark Passage. This was designed by Wyatt for Sir Thomas Legh in 1815 and is a Grade II listed building. Further from the house, to the north-east of the orangery, are the stables (). These are dated 1863 and were also designed by Darbyshire. They are built in sandstone on a courtyard plan and are listed at Grade II. Other structures in the grounds listed at Grade II are the Pheasant House dating from about 1870, an Italian white
marble wellhead in the centre of the courtyard of the house dating from the 18th century and probably brought to the house from Venice in about 1900, sandstone kennels in an H-plan dating from around 1870, a pair of gardener's cottages dated 1871, terrace
revetment walls to the west of the house containing some 17th-century masonry with later repairs, the lodge, gate piers and gates on Lyme Park Drive, the forward gatepiers to Lyme Park Drive, dating from the late 17th century and moved to their present position about 1860, the gate piers in Red Lane, and the gate piers, gates and railings to the north of the north front of the house. ==Preservation ==