The station building on the northeast corner of Argyll Street and Oxford Street was designed by Harry Bell Measures. The upper storey offices designed by Delissa Joseph were later added in 1908. The building as a whole was described as a "vigorous and well-detailed composition" and the best preserved. This design of the station resembles the traditional design of a Central London Railway (CLR) station. The materials used are of pinkish-buff terracotta and red brick with slate roof. The detailed description of the facade is quoted below: