Full Report for Listed Buildings
Summary Description of a Listed Buildings
Date of Designation
Date of Amendment
Name of Property
Old Dynevor Castle
Set high on a rocky, wooded ridge above Afon Tywi with exceptional, picturesque views to the castle from S over the river and from the landscaped park to N.
Extensive remains of a medieval castle first built by the Welsh princes in C13; partly remodelled by King Edward I with a gatehouse added on S and a rectanuglar tower on N. Late C15 additions by Sir Rhys ap Thomas.
The masonry remains include an angular curtain wall, incorporating a circular tower to NW and a large round tower at SE angle, now surmounted by a C17(?)/C18 gazebo. Later additions include a rectangular hall facing N.
Reason for designation
Old Dynevor Castle became a major feature in the C18 landscaped park to Newton House (now Plas Dinefwr) situated approximately one kilometre to N.
Scheduled Ancient Monument: Cm29.
Cadw : Full Report for Listed Buildings [ Records 1 of 1 ]