[1] Halliday has a PhD in Art History at the University of Canterbury completed in 2005,[2] her thesis is about the design and construction of the Beehive which is the Executive Wing of the New Zealand Parliament.

Halliday is the director and co-founder of Te Pūtahi Centre for Architecture and City Making in Christchurch, this followed on from FESTA.

[10] ...the design of our cities has a huge part to play in the future of the planet, climate breakdown and the possibility of regeneration.

[14] Halliday spoke on the Christchurch Regeneration Panel at Te Kōkiringa Taumata New Zealand Planning Institute Conference in April 2023.

[5] Halliday features in the documentary Maurice and I, contributing a number of interviews about the practice and works of Warren and Mahoney.