Cathays railway works the Cardiff Valleys Division, under the Loans and Guarantees Act (1929): the track layout was improved; a new corrugated roof installed; and a new ramp added to the GWR standard-pattern single-road coaling stage. By 1950 under British Railways, the combined depots of Cathays and Radyr (Code:88A), had a complement of 82 locomotives, all tank-types: 2x2-8-2T; 62x0-6-2T; 15x0-6-0T; 3x0-4-2T. In 1959 the shed was divided to cope with the introduction of diesel multiple units. In 1961 the shed closed to steam, and all steam locomotives were moved to Radyr. The shed closed completely in November 1964, with the opening of the
Fairwater, Double Bay a number of mature trees (such as a Bunya Pine, Port Jackson Figs, Silky Oaks, Camphor Laurels, and Jacarandas), dating, in part from the initial European improvement of the area following subdivision. The place has a strong or special association with a particular community or cultural group in New South Wales for social, cultural or spiritual reasons. "Fairwater" has social value in that it is recognised by the community as a place of high historic interest in consideration of its association with the Fairfax family, and as a place which demonstrates through its siting, scale and quality, a style of