The property near Llanfyllin has a bomb shelter within the seven and a half acres of land.
Halls estate agents, Oswestry says Penylan was first built in the early 1900’s as a council farm for soldiers returning from the First World War to rent and make a living.
It was extended about 20 years ago.
There are also outbuildings on the land but also within the grounds of the property is a 1920s bomb shelter.
It was once manned by the Royal Observer Core on the lookout for incoming aircraft, along with other posts towards Lake Vyrnwy and Lake Bala following the First World War.
The bunker is located on a mound in a small wooded rectangular compound near to the property and has two rooms with table, shelf, cupboard and twin bunk beds. It is believed to have been used as a nuclear bunker between 1965 and 1968.
Steven Murgatroyd from Halls said: " This property is not only steeped in Welsh history, but offers the potential purchaser roadside land
and a diverse selection of outbuildings which provide opportunity for potential future development projects subject to statuary consent.
"It really is one of a kind and should be viewed to be fully appreciated.”
Halls are currently following government guidelines on viewings, and are taking bookings for when they can start again in Wales.