Announcing the award at MIPIM last week, mayor of London Ken Livingstone said: 'dRMM could bring a refreshing new approach to the design of commercial buildings and challenge our existing expectations for commercial architecture.'
The winning practice saw off competition from 6a Architects and S333, who were both on the three-strong shortlist.
Director of the Architecture Foundation and jury chair Rowan Moore said: 'dRMM takes each project as it comes, whether it is a school, a housing block or a restaurant, and gets the most out of it, through the creative use of materials and strategic thinking.'
The new award aims to provide a platform for architects who, given the chance, could make an exceptional contribution to commercial architecture in the UK.
The competition jury also included Pipers director Nick McKeogh, Eric Parry and deputy chief executive of Argent David Partridge.