Cefn Mably House

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Cefn Mably House
Cefn Mably in springtime (geograph 5857423).jpg
Cefn Mably in springtime
Cefn Mably House is located in Caerphilly
Cefn Mably House
Location within Caerphilly County Borough
General information
Architectural styleTudor style
LocationCefn Mably, Cardiff
Coordinates51°33′18″N 3°07′05″W / 51.555°N 3.118°W / 51.555; -3.118Coordinates: 51°33′18″N 3°07′05″W / 51.555°N 3.118°W / 51.555; -3.118
Construction started12th century

Cefn Mably House (Welsh: Ty Cefn Mabli) is a mansion situated in Cefn Mably, Caerphilly County Borough, Wales. It is a Grade II listed building.[1]


Cefn Mably mansion ca. 1860

A house of some sort stood on the site in the early 12th century and this was largely rebuilt by Edward Kemeys, High Sheriff of Glamorgan, in the Tudor style in the late 16th century.[1] The east wing was subsequently rebuilt in the Georgian style from 1688.[2] It was described by the Cardiff Times in 1893 as one of the finest and most historic country seats in Wales".[3] It was inherited by Sir Charles Kemeys Tynte in the mid 18th century and then acquired by Viscount Tredegar in 1920.[1]

Tredegar made the building available to the local health board at a subsidized rate and it opened as a tuberculosis sanatorium with 112 patients in 1924.[2] It joined the National Health Service in 1948 and, subsequently, became a geriatric hospital, before closing in the early 1980s.[4]

The building was badly damaged in a fire in 1994 and subsequently became derelict.[3] In 1998 the heritage organisation, SAVE Britain's Heritage, described it as "a beautiful house that has been so brutally vandalised it has now become the local fly tip."[5] In the early 2000s it was restored and converted into luxury apartments.[3]


  1. ^ a b c "Cefn Mably". British Listed Buildings. Retrieved 21 February 2019.
  2. ^ a b V Goodman, "Cefn Mably Hospital", Glamorgan Family History Society Journal no 59, September 2000
  3. ^ a b c "Cefn Mably House, Caerphilly". BBC. Archived from the original on 3 January 2004. Retrieved 9 June 2015.
  4. ^ "Cefn Mably Hospital, near Cardiff". National Archives. Retrieved 21 February 2019.
  5. ^ "Memorandum submitted by Save Britain's Heritage". UK Parliament. 1 July 1998. Retrieved 21 February 2019.