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image for Castle item typeFonmon Castle

  • Historic Houses Association Friends Scheme





Fonmon is one of the few medieval castles which is still lived in as a home. It was built by the St. John family in the early 13th century and has changed hands only once. During the English Civil War Fonmon was sold to Colonel Philip Jones, a direct ancestor of Sir Brooke Boothby, the present owner.

Although most of the present castle dates from the post-medieval period, the rectangular keep was built c.1200 and is still the core of the castle. In later centuries the castle was enlarged by adding wings to the medieval keep accompanied by stunning Georgian interiors.

The castle has many splendid areas open to visitors including the gardens, the hall, the drawing room, the library and the kitchen. On your tour you will hear of the different ways of life and see the different styles of living which have emerged and overlapped as the centuries have passed. Before or after your tour enjoy a stroll around the gardens to see beautiful mature trees from the 19th century, the walled gardens and watch tower.

Fonmon Castle is a licensed venue for weddings and also available for hire throughout the year for a wide variety of events, both outside in the extensive grounds and gardens and inside with its wealth of history.

For groups of 12 or more bookings are made in advance, both during and outside of normal public opening hours. For such groups Fonmon Castle can offer anything from morning coffee to an evening meal with or without a tour. The most popular option is to combine a tour with delicious teas.

Public tours can be conducted in Welsh. All other visits (e.g. larger groups) can also be in Welsh, provided we are notified in advance.

Fonmon Castle welcome research tours and educational groups at almost any time but these need to be arranged prior to the visit.

To book a group tour or for any further information please contact the castle office.

Coach parties acceptedFacilities for groupsPublic toiletsAccepts groupsFacilities for conferencing

Opening details

The Castle is available throughout the year, but times and conditions for visiting vary.
From April to September inclusive, anyone can visit without booking on a Tuesday or a Wednesday. The gardens and grounds are open free of charge from 12:00 to 17:00 (last entrance at 16:00)
There are guided tours of the castle itself on Tuesdays and Wednesdays at 14:00, 15:00 & 16:00 for which there is a charge of £6 per head for all over the age of 14.


Access to Grounds and Gardens are free of charge.
Guided Tours: £6.00 per person over 14.


Vale of Glamorgan,
CF62 3ZN



Plan route to Fonmon Castle using Google mapsPlan route using Google maps

Map reference: ST 047680  Lat: 51.40299 Long: -3.37140

Warning – Using SatNav to approach Fonmon can cause problems. We have a unique postcode which does not ‘link’ to a public highway. Hence you may be told ‘you have arrived’ when you are anywhere up to ½ mile away…..

From Junction 33 of the M4 follow A4232 towards Cardiff.
At the first major intersection take A4050 following signs to Cardiff Airport. (The A4050 becomes A4226 north of Barry.)
Bypass the airport to the north following A4226/B4265 towards Llantwit Major.
Do NOT take 1st left, which is signposted Fonmon (the village), but continue under bridge for another two thirds of a mile.
Follow brown tourism signs, firstly left towards Rhoose and East Aberthaw.
Then, 100 yards beyond the top of the small hill, turn left again into Castle Road.
Go over traffic lights and our lodges are at the end of Castle Road, with the gates on the left.

Parking: free

Accessible by Public Transport: 2 miles from Rhoose station


  • Coach parties acceptedCoach parties accepted
  • Facilities for groupsFacilities for groups
  • Public toiletsPublic toilets
  • Accepts groupsAccepts groups
  • Facilities for conferencingFacilities for conferencing