Thornhill, Cardiff facts for kids

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Thornhill, Cardiff
  • Welsh: Draenen Pen-y-graig
Thornhill, Cardiff shown within Cardiff
Population 6,300 
OS grid reference ST17478283
Principal area
Ceremonial county
Country Wales
Sovereign state United Kingdom
Post town CARDIFF
Postcode district CF14
Dialling code +44-29
Police South Wales
Fire South Wales
Ambulance Welsh
EU Parliament Wales
UK Parliament
  • Cardiff North
Welsh Assembly
  • Cardiff North
List of places
CardiffCoordinates: 51°32′19″N 3°11′28″W / 51.5386°N 3.1911°W / 51.5386; -3.1911

Thornhill (Welsh Draenen Pen-y-graig draen thorn + -en one + pen top + 'y' the + craig rock [mutated to 'graig']) is a northern suburb in the city of Cardiff, capital of Wales, south of Caerphilly. It is a relatively modern area with housing stock dating mainly from the late 1980s and beyond. The area has a centralised precinct providing services, comprising a community centre (Thornhill Church Centre), a Sainsbury's supermarket, with an integral Post Office and Pharmacy; and a Medical Centre.

There are four public houses located in Thornhill: the Old Cottage, Pendragon, Pentre Gwilym House and the Ffynnon Wen. A fifth pub, The Traveller's Rest is de facto in Thornhill due to its geographic location; although it is de jure in Caerphilly based on its postcode and council locale. Despite being placed directly off the M4 corridor, Thornhill has no motorway junction; although it is generally theorised amongst residents that the long-awaited 'Junction 31' will serve Thornhill.

Thornhill Cemetery is a major cemetery located in this area of Cardiff. Thornhill crematorium was built on this site during the 1950s as a dedicated crematorium. This differs from the crematorium that was set up in nearby Glyntaff; this in contrast was a chapel that was originally used for traditional burials and modified to serve as a crematorium.

Most of Thornhill's residential development took place during the 1990s, Cardiff County Council originally planned Thornhill as "The Villages of Thornhill"; with clusters of houses interspersed by large "green" areas. These green areas were short lived as rapid housing development resulted in homes being built in areas adjoining the "Villages".

Thornhill also houses a few tucked away historical sites including the remains of a castle situated close to the Caerphilly/Thornhill border known as Castell Morgraig.

Thornhill falls into the Llanishen Ward on Cardiff County Council.




Thornhill is served by Lisvane and Thornhill railway station which replaced Cefn Onn Halt railway station which closed in 1986.


Capital City Green bus, Cardiff
The Capital City Green bus on Service 27
Thornhill Centre Cardiff
Shops at Thornhill Shopping Centre

Thornhill is served by bus services operated by Cardiff Bus, . The 27 and 28 service runs through Thornhill and terminates at the Central Bus Station at regular intervals. Stagecoach Service A and B runs every 30 mins from Cardiff Central Bus Station and stops outside cemetery. NAT Group have its X8 services, running from Thornhill to Cardiff city centre and onto Cardiff Bay.


  • The M4 motorway passes through Thornhill between junctions 30 and 32 but there is no interchange.

Thornhill, Cardiff Facts for Kids. Kiddle Encyclopedia.