JDA is a small architecture practice operated by Joshua Duncan. JDA is based in the South West of WA and is currently undertaking projects across the greater South West region, Perth and Fremantle.

JDA engages with all types of small to medium sized projects, working across the fields of new-build residential, alterations and additions, commercial and small scale public buildings. JDA is not interested in the opulent or flashy, instead pursuing extraordinary qualities latent in the everyday.

The architectural process of JDA is guided by first principles that ground each unique project with common objectives such as optimal solar exposure and control (response to climate), occupant agency (flexibility and adaptability) and simple but delightful architectural tectonics.

Josh continues to think critically and engage with current architectural discourse and education, most recently with teaching roles at the University of Western Australia, an invited guest lecture for Melbourne School of Design, and contribution to the University of Technology Sydney affiliated publication Paradise Journal.