The building is first shown on the 1906 edition of the Ordnance Survey 25in map. The Central Wales Railway (nprn 291119) was adjacent to the site and from 1935 a loop with two short sidings, to the south of the road crossing, served the creamery. The milk factory was superseded by Llangadog Creamery (nprn 91743) which opened in 1957/8, and Ffairfach Creamery was closed on 01 October 1959. The rail siding was not removed until 1963.
The main building is of two phases: there is a three storey stone and brick building with a later three storey brick extension to the east, all under a pitched slated roof. A stepped and rendered 1930s-style gable fronts to the main road on the west, and two concrete gateposts in a similar style flank the entrance to the yard. The buildings stand substantially complete, although in alternative use (16 May 2001) as a motor repair garage.
The adjacent boiler house and brick chimney stand intact.

There is a photograph of the building in a privately-owned album of photographs and documents in a scrapbook produced by P. F. Carter to provide a record of the development of the milk industry in West Wales 1928-1961. See People's Collection Wales www.peoplescollection.wales/items/491959.

Sources include: Field visit by B.A.Malaws on 16 May 2001; Clift, T., The Central Wales Line, Ian Allan 1982; Smith, M., Portrait of the Central Wales Line, Ian Allan 1995; Doughty, A., The Central Wales Line, Oxford Publishing 1997.
B.A.Malaws, RCAHMW, 03 January 2012.