Holy Trinity Chapel was built in or a little before 1709, by Peter Legh of Lyme. It was consecrated in 1709. It lay in Sankey Street, in the centre of the town. The original chapel was 60' x 33', without any settled funds for repair. By the original foundation, Legh had the right to nominate a chaplain to Holy Trinity Chapel who had leave to preach only in the four winter months. It was rebuilt, enlarged and reconsecrated in 1760 (and further re-edified in 1780). By the 1760 scheme, the minsiter was obliged to read daily morning and evening prayers on weekdays, festivals and feasts, and on the evening before Holy Communion, either in the chapel or church; he was also to preach in the chapel morning and afternoon every Sunday, summer and winter, administer the Eucharist on the third Sunday in every month, and to assist at the mother church at the great festivals. VCH Lancs, III, 316-24; Gastrell, Notitia Cestrienses, II, ii, 241-2.