The smaller New Park, also known as the Lady Park, of about 114 ha (281.7 acres) is now known, from a statement in the 1521-22 compotus, to have been created in 1470, and was probably imparked for Thomas Stanley’s first wife, Eleanor Neville. It can be suggested that the hamlet of Alton, or Olton, later corrupted to Halton, may have lain close to the moated site known as Halton Castle, which lies within New Park. The lack of documentary sources after 1366 suggests that this settlement may have been deserted before New Park was imparked in 1470. An aerial photographic and walkover survey of the Halton Castle site has revealed that there are extensive low earthworks which may relate to the remains of this former village.

New Park or Lady Park, created before 1470 by Sir Thomas Stanley
For his first wife Lady Eleanor Neville

Burscough Priory Park, now known to be in the north-west corner of the study area, but previously only known from late twelfth century documentary references in the Burscough Cartulary , has been located from field names on the 1846 tithe map. Its constituent parcels were also listed in estate accounts of 1611, and totaled at least 56 customary acres in extent (128 statute acres, 51.8 ha). Documentary evidence has also produced evidence for an enigmatic Stand Park, referred to in a 1697 document which was presumably at or near Stand Farm.

Following the Civil War sieges, the later medieval house was partially demolished. The project has established that, in the second half of the seventeenth century, the 8th and 9th earls not only went to considerable expense to re-build the siege-ravaged Lathom House, but to transform the deer park into a designed landscape with one of the longest and widest avenues in England. This was known as The Lines, and was as much as 3000 metres in length and 200m in width, and is of potentially national importance.

Charles 8th earl of Derby who spared no expense when rebuilding Lathom
House and parks after the damage caused by two prolonged civil war sieges.

In about 1724-25, the estate was acquired by Thomas Bootle, and the house was
rebuilt to the designs of Giacomo Leoni, evidently retaining much of the earlier
standing masonry. The moat was infilled, a ha-ha was created on its line and the park was designed incorporating pleasure gardens, a screening wood called The Belt around the park perimeter, Temple Wood to the south of the House and a circular building within, ice houses, deer houses, and several major water features. By the late eighteenth century, there were no visible traces of the earlier medieval house.