Ahrends Burton & Koralek's British Embassy in Moscow has won an RIBA Award and will compete for the Stirling Prize on 4 November alongside 54 other buildings.
The £81 million building qualifies because it is on British soil even though it is outside the European Union.
The building is designed as four separate pavilions, connected at their base. The three clear spaces created were praised by the judges as were the 'stunning penthouses' for senior diplomats. 'Throughout the building there is evidence of enormous attention to detail executed in a confident, classic modern vocabulary, ' the judges concluded.