You could buy a 600-year-old Irish castle for the price of a house deposit

By
Orana Durney-Benson
November 2, 2025

A crumbling medieval castle in Ireland is on the market for a bargain price. 

Mountcashel Castle is an imposing square tower that was built in the 15th century for the King of Thomond

Once, it would have been a grand residence and stronghold where the king would have defended his territory from enemies. 

But today the castle has fallen on hard times.

Mountcashel Castle in Ireland. Photo: Castleist

The structure has been abandoned for several decades, leaving the building exposed to the elements. 

The last restoration attempt was back in the 1960s. 

Mountcashel Castle sits on a rocky outcrop in County Clare, a half-hour drive south of the city of Limerick. 

Its thick stone walls and slender arrow-slit windows are a powerful reminder of the building’s military history. 

The castle is on the market for €95,000 ($168,000). 

To put that into perspective, the median price for a house in an Australian capital city is $1.23 million, according to Domain’s latest House Price Report. 

Based on the standard 20 per cent deposit, $247,355 is required to buy the median house in Australia. 

Yet, with this deposit savings, you could buy Mountcashel Castle outright and have a cool $80,000 in change. 

But those keen to buy the castle will be signing up for a major building project. 

“Extensive refurbishment is required,” the listing warns. 

“Good site space to afford a purchaser an opportunity to extend and develop this unique facility.” 

If you prefer to stay in Australia, there are several castles you can check out – albeit of more recent origin. 

A quirky fortress with gargoyles and coats of armour is for sale in south-west Sydney. 

The owner had asked her husband to buy the castle as a symbol of his love and he did.

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