As of May 2022[update] he is based in Sydney, New South Wales.

He is a Dhungatti man,[1] with Irish, Scots, English, and German ancestry.

[2] Douglas (as Adam Hill) created the exterior artwork on the new recording studios and offices of the Gadigal Information Service,[3] opened in 2008.

[6] A portrait of Douglas by Euan Macleod was finalist for the 2021 Archibald Prize.

[7] He won the 2022 Archibald Prize for his portrait of Wiradjuri artist Karla Dickens.