Parish of St Mark, Myddelton Square, Islington , Church of England

The church of Saint Mark was built between 1826 and 1828 by William Chadwell Mylne, surveyor to the New River Company, in the centre of the Company's new residential estate. It was intended as a chapel of ease for Saint James, Clerkenwell. It is in mixed Gothic style with a 90 foot high west tower, and a traceried and pinnacled porch. The New River Company stipulated that the surrounding enclosure should not be 'appropriated as a cemetery'. The church suffered serious war damage but was later restored.