Grand Declines: The hauntingly beautiful abandoned mansions of Wales

Once grand and bustling with activity, they’ve long since been left to crumble in the elements or be swallowed up by nature.

In fact, all around Wales are derelict and neglected properties for which time has stood still since the last person to live in or love them slammed shut the front door that final time and walked away.

Portals to the past, or shells with potential for a new future, they remain hidden amidst the trees, behind imposing rusted gates or in lonely corners of forgotten fields – until, that is, someone happens to stumble across them again.

Occasionally, some have been taken on and, thankfully, given a new lease of life.

Hafodunos Hall

Hafodunos Hall, near Llangernyw, Conwy, has a beautiful historic garden that’s been undergoing restoration after 30 years of neglect and an arson attack. The garden was opened under the National Garden Scheme.

The Gothic revival house was designed by Sir George Gilbert Scott and built between 1861 and 1866 for Henry Robertson Sandbach, replacing a house that had been built in 1674. After being sold by the Sandbach family, Hafodunos subsequently housed Kent House school for Girls, which was based in Sale but acquired it as a site for evacuation during World War Two.

Dr Richard Wood purchased the mansion and garden in 2010, and has begun a restoration project to return Hafodunos to its former glory.

Kinmel Hall

The ‘Welsh Versailles’ was once one of the finest homes in the land but now lies derelict and unloved.

A private home has been on the site of Kinmel Hall since the 12th century. The present Grade I 122-room building was finished in 1876 and funded by Robert Hughes, heir of a huge copper mining fortune.

It was the family’s home until 1929 and went on to be a boy’s school, a health spa, a military hospital, a hotel and a Christian conference centre.

The cost of its restoration has been estimated at £20 million.

Plas Glynllifon

Plas Glynllifon was a grand neo-classical mansion built in the 1830-40s by Lord Newborough. It sits at the heart of a historical estate which exerted a profound influence over the landscapes and communities of Caernarfonshire for centuries.

In 1969, it played host to the Prince of Wales Investiture Ball but the mansion had lain empty for several years after a previous attempt to create a wedding venue failed. However, Paul and Rowena Williams took on the 102-room stately home in 2016 and announced multi-million pound plans to transform the house into a five star hotel. You can see the 50 best hotels in Wales here – and the country’s best restaurants here.


This derelict house is in Llanychaer in Pembrokeshire. According to Urban Ghosts Media , it has an intact roof despite its dilapidated exterior. The website also cites the 1811 Tour of Pembrokeshire book, in which Richard Fenton described the house as “a handsome modern mansion”.

“Today, its outbuildings are also in ruins and the tree stump in the foreground is all that remains of a cedar grown from a seed brought from the Holy Land,” says Urban Ghosts Media.

Edwinsford House

Grade II-listed Edwinsford was the residence of Sir Rice Williams, the high sheriff of Carmarthenshire in the 1680s.

Built on the left bank of the River Cothi, north of Llandeilo, in 1635, it fell into disrepair in the 1970s.

Cornist Hall

Cornist Hall, in Flint, is the birthplace of a navy admiral who served under Lord Nelson but it has sat unoccupied for several years and has become a regular attraction for vandals.

The building was the 18th century family home of Thomas Totty, who served under Nelson on several ships, including HMS Invincible. It was used as a dining and wedding venue until it closed its doors in 2013.

It was previously owned by members of the Summers family, who owned John Summers and Sons Ltd, a prominent iron and steel producer in Shotton. After being taken over by Clwyd Council in 1953, the house was modified for catering purposes. The building was under private ownership from 1987, before being sold to a new owner.

Golden Grove

There have been three mansions on this Carmarthenshire estate. The first was built in 1560 by the Vaughan family. This was destroyed by fire and replaced in 1754. In 1804, the estate was bequeathed by John Vaughan, the last of the Golden Grove Vaughans, to his Oxford friend John Frederick Campbell, Lord Cawdor of Castlemartin, later the first Earl Cawdor, who demolished the previous property and built the existing house, designed by the leading architect Sir Jeffry Wyatville.

Golden Grove remained in Cawdor family occupation until 1935. During the Second World War it was occupied by the United States Air Force and, until 2003, by Coleg Sir Gar as an agricultural college.

Carmarthenshire council sold the Grade II listed, 59,000 square feet Golden Grove mansion and 100 acres of park and woodland, including a famous arboretum, in 2011. The park used to feature nature trails, a cafe and a children’s play area. But it has now deteriorated. There were plans to renovate it as a hotel, then as flats and a convalescent home for wounded armed forces veterans, but they came to nothing.

Ruperra Castle

Built in 1626 by Sir Thomas Morgan near Caerphilly, it was one of the first ‘mock’ Tudor castles to be built in Wales. King Charles I spent two nights there in 1645.

It was bought as a home by John Morgan, a wealthy merchant, in the 18th century and was absorbed into the Tredegar estates of the Morgan family. It was destroyed by fire in 1785 but rebuilt and turned into a home again. In 2010 it was put up for sale for £1.5m after years of legal wrangles over the site


Iscoed, at Ferryside in Carmarthenshire, is a ruined eighteenth century mansion attributed to the architect Anthony Keck. It was built for Sir William Mansel in 1772 and purchased by the Napoleonic general Sir Thomas Picton in 1812. It remained in that family until the end of World War One.

Used subsequently as council housing, it has been empty since the 1950s, and is now a derelict shell. As of 2018, it was listed for sale by auction.

Great Frampton

Great Frampton is a late 18th century front on a 16th centure house. Gutted by fire in the late 1990s, Great Frampton became a hollow shell. According to the website WelshRuins.co.uk , the famous astronomer, Nathaniel Pigott, stayed at Frampton, near Llantwit Major, during the 1770s and erected an observatory. Great Frampton also has a walled garden.

Red Dress Manor

This grand-looking former dairy farm in Llanymynech, Powys, eerily displays signs of still being inhabited. Strewn with personal effects, including photographs, lights and clothes, were it not for the decades of dust covering them you’d think someone remained in residence there. It still has photos of the last owner hanging on the wall and even the dress that gives the derelict manor house its name can still be found inside.

The derelict dairy farm dates from 1725. In 2013, a photographer gained access and took these remarkable pictures .

Piercefield House

Heralded as a neoclassical masterpiece when it was built in the late 1700s, this architectural gem at St Arvans, in the Monmouthshire countryside, was designed by British architect John Soane – the man behind the Bank of England building.

Once overlooking 129 acres of parkland, it served as a base for US troops to conduct D-Day Landings exercises in 1944. It’s laid derelict since then, despite having been bought in recent years by billionaire property development siblings David and Simon Reuben.

Gwrych Castle

The astonishing Gwrych Castle has a rich and diverse history, with direct links to the British Royal Family. It was built by Lloyd Hesketh Bamford-Hesketh between 1810 and 1822 incorporating his ancestral home. The castle was the largest newly built structure of the 19th century and was designed by several prominent architects. The frontage stretches for more than 1,500 feet and contains 18 battlemented towers, with expansive views over the parkland towards the Irish Sea.

The main house, at Abergele, Conwy, is believed to have had 120 rooms and marble staircase, and it’s considered one of the finest examples of picturesque architecture in Britain. But its future looks bright after half a century of uncertainty: having fallen into a perilous state-of-disrepair, it was bought by the Gwrych Castle Preservation Trust, which plans to open it to the public .

Baron Hill

Originally built in 1618 for the Bulkeley family – one of the most powerful dynasties in north Wales – it was remodelled into the Neo-Palladian style in 1776 by the architect Samuel Wyatt for the 7th Viscount of Bulkeley, who was also the first and last Baron of Beaumaris.

It remained the family home until the 1920s, when they moved to more modest accommodation and the mansion was then used for storage.

When the Second World War broke out, the Government requisitioned it and it was used as a billet for Polish soldiers.

Over the years, however, the house in Beaumaris and associated outbuildings have become derelict and now stands roofless and overgrown by trees.

In 2007 multi million pound plans were revealed to turn the Grade II listed building into 43 apartments in a partnership between developers Watkin Jones, Sir Richard Williams-Bulkeley and the Baron Hill Estate , but it didn’t materialise.


Cilgwyn House was once an important estate, which owned huge areas of Carmarthenshire and Cardiganshire. AThe Cilgwyn we see today was built in 1870.

West Wales postman Paul White has spent years documenting run down and ramshackle buildings, often to very spooky effect, including this one. You can see more of Paul’s pictures here .

“Being a postman helps in find them,” he admitted. “Otherwise, I’d use reference books and Ordnance Survey maps, scanning them for hours until I’d built up a list of potential places to visit.

“And I’d usually spot the few telltale signs that a house has been abandoned straight away, such as wireless electricity poles or driveways that hadn’t been used for years.”

Denbigh Hospital

Not a mansion, but one of the most remarkable abandoned buildings in Wales, Denbigh Hospital was built between 1846 and 1848 and home to 200 patients in its day. This Grade II-listed North Wales psychiatric hospital closed in 1996, before being ravaged by a number of fires, leaving it teetering on the brink of collapse.

Earlier this year, multi-millionaire Lawrence Kenwright announced he wanted to turn it into two luxury hotels and homes . You can read about the dark history of Wales’ abandoned asylums here. The tragic stories and haunted faces of the troubled men and women whose home was the Glamorgan County Lunatic Asylum can be seen here .

Mid Wales Hospital

Another Victorian asylum, this was opened at the start of the 20th century, and closed in 1999. It included kitchens, workshops, a bakery, a tailor, printing shops and eight acres of market gardens.

The hospital was originally known as the Brecon and Radnor Counties Joint Lunatic Asylum.

At least one patient is reportedly known to have died on the site from a pre-frontal lobotomy.

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