Stack Rock Fort is a 19th century Palmerston Fort built between 1850 and 1852, and upgraded in 1859. It is now a grade 2 listed building and is currently not used for any activities. It was first proposed by Thomas Cromwell in 1539 to protect the waterway, proposals were also made in 1748 and 1817 however it was not finally approved and started until 1850. The aim of it was to defend Pembroke Dock and The Royal Dockyard.

From it’s completion in 1852 until 1929 it was armed by men who used it as their accommodation too.
When it was disarmed in 1929, Stack Rock Fort was sold for £160! In 2005 it was sold for £150,000 and in 2020 it was sold again with an auction price of £295,000 to a private seller. According to Stack Rock Fort CIC they have a dream to develop it into a venue and activity centre for leisure and tourism and are currently funding money for this development. 📸