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Dinefwr Park

Dinefwr is a National Nature Reserve, which is also home to a historic house and 18th-century landscape park, enclosing a medieval deer park and Castle.

Dinefwr Park

Is one of the most illustrious places in Welsh history, a stunning 800 acre estate on the outskirts of the old farming town of Llandeilo in Carmarthenshire. It is a Sight of Special Scientific Interest (SSSI) and the only parkland National Nature Reserve (NNR) in Wales, Dinefwr Park is a microcosm of Welsh heritage and natural history.

Dinefwr Wildlife

Here there is a dense population of some of Britain’s most astonishing native and migrant birds, the estate is home to many of Britain’s most elusive mammals such as otter, pole cat, voles, fallow deer and badgers. Also on the property is the ancient and rare breed of White Park Cattle

Dinefwr hosts badgerwatch evenings between May and August, which is a real treat to observe the private life of such an elusive mammal. Dinefwr also has a hundred-acre medieval deer park, where a herd of over 100 Fallow Deer roam. Dinefwr ancient woodland is home to some of the oldest trees in Britain. There is over 300 Oak Trees some that are over 400 years old, making them true veterans and providing vital ecosystems of diverse species.

Dinefwr Heritage

Newton House found on the Dinefwr estate was built in 1660. Most of what you will be able to see of the grand building today dates back to the 1850s, when it was given a fashionable Gothic facelift, with stone cladding and four impressive turrets.

Newton House was the home of the Rhys (or Rice) family. They were descendants of the powerful Princes of Deheaubarth, who ruled from the nearby Dinefwr Castle; perched on top of the hill overlooking the Towy valley. George and Cecil Rice designed the landscape around Newton House. The family ran into financial difficulty and had no choice but to sell Newton House and was used by some rather diverse individuals – an antique dealer, squatters and even a television company. However in 1990 the National Trust took over, having already bought the deer park and parkland National Nature Reserve (NNR) that surrounded Newton House four years prior.

Also on the Dinefwr Estate is Dinefwr Castle, Click Here to find out more about this.




SA19 6RT

T: 01558 824512
E: [email protected]
W: Click Here to Visit



Seasonal Variations may apply so check before visiting. However roughly open daily 10am until 5pm

Last admission 30 minutes before closing. Closed 24th, 25th, 26th December and 1st January



FREE to Visit Dinefwr Castle

The Car Park is free to National Trust or Cadw Members, non-members will have to pay £5.

Access to the whole property is free to National Trust Members otherwise entry prices are:

Adult £9.90
Child £5
Family £24.80
1 adult, 2 children £14.90

You can save on normal admission and car parking fees if you are a member of National Trust. Click Here to find out more about individual or family membership prices and how to join online.



Prices correct at time of publishing in February 2023 –  We Advise Double Checking Details before Visiting

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