Pendeen Lighthouse, also known as Pendeen Watch is located 2 kilometres to the north of Pendeen in west Cornwall. Trinity House built the lighthouse and foghorn in 1891 the building was designed by their engineer Sir Thomas Matthews. The 17 metres (56 ft) tower, buildings and surrounding wall was constructed by Arthur Carkeek of Redruth who had to flatten the headland before building could commence. Pendeen Lighthouse was automated in 1995 .

Apart from the tower itself, with its machinery built into the base, there is an 'E' shaped building split into a terrace of four cottages. Three of the cottages were originally used to house the three resident keepers, their wives and families, with the fourth used as an office area and sleeping accommodation for the supernumerary keepers. They are now let as holiday cottages. Behind the cottages are three kitchen gardens (which soon fell into disuse as nothing would grow in such an exposed position) and, on the seaward side of the complex, a foghorn and its accompanying machinery. Water was originally collected off the flat roof of the accommodation block and stored in an underground tank.