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Plas Dinefwr (also known as Dynevor Castle)2643

Short Description

The site is a beautiful and picturesque landscape park of around 1750-1780. It incorporates the remains of a medieval castle, small lake, two walled gardens, and fine sweeping drives. Lancelot Brown is known to have visited and to have admired it.

Visitor Facilities
  • Mansion House (featured building)
  • Description: The house was in existence by 1454, with later additions and modifications.
  • Earliest Date:
  • Latest Date:
  • Dairy
  • Description: Dairy cottage
  • Ruin
  • Description: The remains of the medieval castle.
  • Planting
  • Description: There are two walled gardens.
  • Kitchen Garden
  • Description: Walled kitchen garden.
Ha-ha, Fountain, Dovecote, Icehouse, Lake, Drive
Access & Directions

Access Contact Details

The site is open daily throughout the year, with shorter hours in the winter months.


Civil Parish

  • Llandeilo


The castle, possibly erected about 1151, was ruined by the early-16th century. The mansion house at the nearby settlement of Newton was in existence by 1454. It was partially rebuilt around 1660, and changed again around 1720 and 1857.


  • 18th Century
Associated People