Sarah Treadwell studied architecture in Aotearoa, registered and practiced in Te Whanganui-a-Tara, Wellington and London, and then returned to the School of Architecture at the University of Auckland as the first woman academic staff member. She taught design and architectural drawing and studied early drawings of Aotearoa. She has written on the work of contemporary artists including Barbara Tuck, Maureen Lander and Pauline Rhodes.
Following her academic career Sarah retrained as a painter and printmaker and currently works in these fields. The focus of her research has been on conditions of ground in Aotearoa and Te Moana-nui-a-Kiwa, the Pacific, investigated with painting and mixed media. Her work has been exhibited at Te Tuhi, Pakuranga, Gus Fisher Gallery, University of Auckland and Adam Art Gallery Te Pātaka Toi, Wellington, New Zealand.