St Winefride's Well Chapel is located in Holywell, Flintshire, North Wales. The Well Chapel is part of a late fifteenth century perpendicular-style rectangular structure of two storeys. The upper level is occupied by the chapel nave, with a north aisle and a polygonal chancel apse opening onto the east. Below is the well chamber, with a central arcaded basin surrounded by an ambulatory, having an open arcade on the north. It was thought to have been built by order of Lady Margaret Beaufort (Lady Stanley, mother of Henry VII).
As with several other ‘Stanley’churches in North East Wales, built under the patronage of Margaret Beaufort, the chapel has fine sandstone carvings and is particularly noticeable for the animals carved on the string course.
The chapel stands adjacent to St James's church, and overlooks the grounds and bathing pool of the Saint Winefride’s Holy Well.