Angus Walker specialises in acting for clients who wish to promote or oppose applications for development consent orders (DCOs) for nationally significant infrastructure projects under the Planning Act 2008, with a leading practice in this field. He has been working almost exclusively in this area since it came into being in 2008, although he also advises on hybrid bills, transport and works act orders, harbours act orders and other special consents.

Since 2009 he has maintained a blog on the Planning Act 2008 regime that now has over 800 entries and over 1000 subscribers, and has set out the evolution of the infrastructure planning regime since its inception. As a result Angus is regarded as a thought leader in this area.