“(Stanley) Heaps’ first independent station designs were for the four new stations on the Bakerloo line extension from Edgware Road tube station opened in 1913 and 1915. Although not the first London Underground stations to be provided with escalators, Paddington, Warwick Avenue (see image), Maida Vale and *Kilburn Park were the first stations to be designed specifically for their use rather than use lifts as had the original Bakerloo line stations opened less than ten years earlier.”
Ian Mansfield wrote at IanVisits.co.uk on 31.1.15:
“One hundred years ago, another extension of the Bakerloo opened to the public…the London North West Railway called for…a tunnel down towards Paddington…and this was to become the extension of the Bakerloo Line, which eventually opened in 1915.
Of the four planned stations, only Warwick Avenue and Kilburn Park opened on time — namely the 31st January 1915, with Queen’s Park opening on the 11th February and Maida Vale following on the 6th June 1915. The delays were put down to wartime conditions.
The Times newspaper writing about the new extension noted the new stations are fitted with “moving stairs instead of lifts”, but the greatest shock about the new extension was the stations — they were staffed by women. Yes, women allowed to do a man’s job, and quite necessary, as the men were away in France…In fact, when it opened, Maida Vale was a women only zone as far as staff were concerned. Even more amazingly, the women were paid the same wages as the men, which was almost unheard of at the time.
But back to the moving stairs, as there was no longer any need for an engine room for the lifts, the new station buildings at Kilburn and Maida Vale were built as a single storey building — which they remain to this day, as there has never been the planned oversite office construction.
Kilburn Park was also described by The Telegraph as the finest in London.
Meanwhile the new Warwick Avenue station is underground, but also under the road, so it has just a couple of staircases in the pavement to indicate its existence.”
NB Although the following entry relates to Kilburn Park, it serves as a description of Warwick Avenue, pictured above:
*(Historic England): “By the escalators (renewed) are areas of chequerboard tiling forming a framework for posters. The plain double escalator well is toplit by an oval glazed dome, with higher central light. Lower escalator hall has moulded arches with keystones leading to the platforms to either side, and tiling to above the springing level of this round-arched space.”