The interior is notable for the staggering mid-17th century plasterwork in the ceilings of the Great Hall and drawing room, which have heavy wreaths and disporting cherubs.
The staircase is of the same period with a coarse but vigorously carved acanthus scroll balustrade and square newels with vases of flowers on top.
The lower parts of the hall are panelled with inset paintings of a curious selection of modern worthies, including Protestants such as Elizabeth I and William the Silent; Catholics such as Philip II and Ambrogio Spinola; the explorers Christopher Columbus and Ferdinand Magellan, and Muslim rulers such as Bajazet and Mohammed II, Sultans of Turkey; it is thought this scheme might be rather earlier than the other work and date from the time of MP Thomas Charnock, who died in 1648.
In 1922 the house and its contents were given to Chorley Corporation by Reginald Tatton, as a memorial to the local men killed in World War I.
It is rumoured that Oliver Cromwell stayed at the Hall during the Battle of Preston in the 17th century, and reportedly left his boots behind.
A wide range of temporary exhibitions are displayed in the art gallery throughout the season and events are organised throughout the year.
The grounds with a small lake were landscaped by John Webb and feature a picturesque meandering stream running through a wooded ravine.
The Park, Coach House and Walled Garden have recently been renovated with help from the Heritage Lottery Fund and Chorley Council.