ɐdˈɪʃənəl wˈɪŋz wɜːɹ ˈædᵻd tə ðə bˈɪldɪŋ ɪn nˈaɪntiːnhˈʌndɹɪd sˈɛvənti wˈʌn wˈɛst ˈɛnd tˈuːstˈoːɹi wˈɪŋ, nˈaɪntiːnhˈʌndɹɪd sˈɛvənti fˈoːɹ ˈɛn.dˈʌbəljˌuː. ɹˈuːm ʃˈɑːp wˈɪŋ ænd nˈaɪntiːnhˈʌndɹɪd sˈɛvənti fˈaɪv ˈɛn. dˈʌbəljˌuː. ˈɑːɹt ɹˈuːm ʃˈɑːp wˈɪŋ.
Additional wings were added to the building in 1971 (west end 2-storey wing), 1974 (N.W. Room shop wing) and 1975 (N. W. Art room shop wing).