Set on a hillside to provide panoramic views to the southwest over Pembrokeshire, the S-shaped building was erected in 1824 for Dr. Evans.
Built out of stone with two storeys, the two hipped end panels frame a flat central-door entrance on the three-panel house.
The layout resembles that of Scolton Manor which was also designed by local architects William and James Owen.
[2] In 1905 the estate was bought by Victor James Higgon, whose wife Catherine Octavia Edwards was the last of the Tucker family to live at Sealyham House.
[3] The Hall and the associated entrance lodge both became Grade II listed buildings in January 1963.