Following the Welsh Intermediate Education Act of 1889, the County Intermediate School, Pembroke Dock opened in the former Victoria Hotel at the top of Pembroke St. in January 1895. This was only temporary as a new school was built on the corner of Bush Street and Argyle Street between 1897 and 1899; a 2-storey building with a variety of window shapes and sizes, a bell turret and railings.

The school was enlarged in 1904 to provide science laboratories. Further buildings were added in 1933, including the school hall and gymnasium. In 1947 the County Intermediate School became Pembroke Grammar School. In around 1955-56 pupils were relocated to the new Grammar School at Bush and the old school became part of Coronation School as a Secondary Modern School.

When Bush Grammar School became a Comprehensive School in the early 1970s the County School was closed and soon demolished c.1975, leaving only those buildings erected in 1933. On this site were built Pembroke Dock Junior School and Park Infants School. Both these schools have since been demolished, the Junior School in 2001 together with the 1933 buildings.

Sources: early black and white photograph, undated; John Hogg, Lost In Time: Forgotten features of Pembroke and Pembroke Dock (Pembrokeshire: Jackydando Books, 2010), pp.144-45; 'Demolition crew moves in at old school site', Western Telegraph 31 October 2001

RCAHMW, 17th December 2007. Updated by M. Powel, RCAHMW. May 2022.