Church House

Built in the late 1850s as one of John Mowlem's offices on the island. Mowlem was a contractor in London who used Guernsey granite supply for paving and started his own quarry in Guernsey. The wedge/triangle shape is believed to have allowed cart access to the surrounding stone yards. The building was uninhabited for approximately 25 years before restoration. At the peak of the granite industry in the 19th century, there were 268 functioning quarries on Guernsey.

Church House is a listed 1850 heritage property in St Sampson, managed by the National Trust of Guernsey. Built as part of John Mowlem's granite quarrying operation, the distinctive wedge-shaped building is known locally as "The Triangle House" or "The Cheese". Following restoration completed in 2022, it is now privately tenanted as a two-bedroom dwelling and is not open to the public. — about this text