The shortlist was selected by a panel of judges that included Royal Academy of Arts curator Kate Goodwin, Klein Dytham Architecture founders Mark Dytham and Astrid Klein, photographers Richard Bryant and Matt Emmett, and designer Andrew Chen.
"The winning images not only captured the aesthetics of different architecture and space, but also went beyond recording the images by telling stories about the meaningful built environments," said Chen.
All 20 images will be exhibited at the World Architecture Festival in Berlin next month, during which the winner will be announced. A selection of the shortlisted entries will also feature in an exhibition at Sto Werkstatt, London, in 2018.