St Marys School

St Mary's School is a house, now used as a school, with origins dating back to the 14th and 15th centuries. It was remodelled around 1760, raised and extended in the early 19th century, and a rear addition was made around 1910. The building is constructed of dressed stone and brick, with stone dressings, and has gabled and hipped slate roofs. Four brick side wall stacks are present, along with a medieval round side wall stack.

The exterior features a chamfered string course to the main block and a chamfered plinth to the south end, with a single coped gable. The main block, of three storeys and five bays, has a double-range plan with two-storey wings extending to the sides. A slightly projecting, off-centre bay features a chamfered stone doorcase, a six-panel door with overlight, and surrounding sash windows. Some windows have splayed lintels and glazing bars, while others have margin lights. The left wing, dating from around 1820, has a parapet and a single glazing bar sash with a 2-light casement above. The right wing also features a parapet and two glazing bar sashes with joggled lintels on each floor, with two blank panels in the parapet. A late 19th-century gabled dormer is positioned centrally above the right wing.

The interior boasts a rare and outstanding Palmyrene plaster ceiling, probably created in the mid-18th century by Sir William Chambers. A panelled entrance hall contains a mid-18th century cantilever wooden staircase with vase and stem balusters (three per tread) and a ramped scrolled handrail. The staircase landings are supported by a moulded beam and Doric piers. A segmental vaulted cellar, dating from the 15th century, has chamfered ribs.

From around 1400 until approximately 1726, this building was a single property shared with No.4 Pottergate.