A small gabled timber panelled relay room with brick base and concrete steps is located just off the west elevation of the signal box.

A 40 lever type A PL interlocking machine with associated signalling equipment is the major element in the space and is still in operation.

[7] External: A small rusticated weatherboard out-of-shed with gabled corrugated metal roof is located to the west of the signal box.

It is used for flammable liquid storage and has only a timber board door with fanlight and a band window on the opposite elevation.

A number of garden beds and hanging pot plants together with remnant railway equipment/tools scattered between the buildings further enhance this unique curved station's setting.

A large double hung window and a door opening with a skillion roof on timber brackets has been added on the west wall.

The tiled and marble threshold records the name "MARX" an early Katoomba businessman who used the premises.

The goods shed is a simple gabled timber building on an east–west axis sited close to the south side of the yard.

A sandstone retaining wall raises the railway boundary of the site, behind the goods shed, extending the Yeaman Bridge at the west.

[7] Located to east of platform is a large shed building, painted with a mural and corrugated iron roof.

The Signal Box is adorned with hanging plants, memorabilia and stone edged planter beds, which form part of the significance of the station precinct.

[7] The following modifications were undertaken over the years:[7] The railway from Wentworth Falls to Mount Victoria was opened in 1868, passing through what was to become Katoomba.

The goods yard contains a valuable collection of traditional railway structures, including the 5 ton jib crane (no.

[7] The present island platform and building at Katoomba date from 1891 and was constructed for £6,922 (including the subway) by builders Quiggan and Kermode.

It is typical of the construction time and is similar to boxes at Mount Victoria, Newnes Junction, Lithgow Yard and Exeter.

[7] As at 23 September 2010, Katoomba Railway Station and Yard is of state significance as a unique railway site in NSW developed around a former ballast quarry and is significant for demonstrating Katoomba's growth in the 1880s and 1890s as the first tourist and local commercial centre in the Blue Mountains, before the duplication of the Western line in 1902.

[7] The site of the goods yard is of particular significance as it was part of the original Katoomba station precinct dating from 1878, which was used for locomotive turning and minor servicing and stabling of trains.

While fulfilling a minor railway use at present for per way maintenance, it contains two relatively rare items, which are the former 1881 timber station building as its goods shed and the 1891 crane.

[7] The station group comprises a homogenous collection of timber structures adding significance to the townscape and streetscape with direct relationships to both.

Situated at the focal point of Katoomba, the station is connected visually and physically to the town's commercial heart by the pedestrian subway and landscaped surrounds.

The adjacent Progress Buildings from part of the station group and contribute to the early 20th Century character of the commercial precinct of Katoomba with their largely intact shopfronts.

[7] Katoomba railway station was listed on the New South Wales State Heritage Register on 2 April 1999 having satisfied the following criteria.

[7] The site of the goods yard was part of the original Katoomba station precinct dating from 1878, which was used for locomotive turning and minor servicing and stabling of trains.

[7] The place is important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in New South Wales.

Katoomba Railway Station is of aesthetic significance as one of few surviving timber railway station buildings known as "The Standard Eddy" (as it was designed under Commissioner Eddy) outside of the Sydney metropolitan area including Newtown, MacDonaldtown, Ashfield, Lewisham (all demolished) and Summer Hill, Homebush and Croydon (extant).

Katoomba station building features an unusual deep timber valance to the awnings and it is unique to the other examples for its curved form along the platform.

The sandstone retaining walls to the north and south of the site are well built solutions to the perpetual problems of dealing with the Katoomba's topography and contribute to the character of the townscape.

[7] The place has potential to yield information that will contribute to an understanding of the cultural or natural history of New South Wales.

[7] The place possesses uncommon, rare or endangered aspects of the cultural or natural history of New South Wales.

[7] This Wikipedia article was originally based on Katoomba Railway Station and yard group, entry number 1174 in the New South Wales State Heritage Register published by the State of New South Wales (Department of Planning and Environment) 2019 under CC-BY 4.0 licence, accessed on 12 April 2019.