After World War II, Armitage studied at the Chelsea School of Art, where she trained to be a painter.
[1][2] In the 1950s, after she was married and had children, Armitage started designing and making lino-cut wallpaper.
[4] After sketching the design, she uses hand-cut lino blocks and a century-old offset lithographic printing press to create custom-printed rolls of wallpaper.
[8] In 2004, the historic wallpaper design company Hamilton Weston agreed to represent her work.
[9] She designed a wallpaper she entitled "Alphabet" for The Woman in Black, which was created for the film which is based on Susan Hill’s ghost story.