The Shard, the London Aquatic Centre, and Portsmouth’s Mary Rose Museum are among 233 projects shortlisted for the Royal Institute of British Architects (RIBA) Regional Awards.

London-based architect Allies and Morrison has the most buildings shortlisted with six, followed by fellow London firm Haworth Tompkins with five.

A total of 64 projects have been shortlisted in the London region alone for this year’s RIBA Awards, including the Shard, which opened to the public earlier this year.

The architects will find out whether they have won a Regional Award at a ceremony on 18 June.

Regional winners will be put forward for the RIBA National Awards, with the nominees announced in June. Those collecting national awards will then be considered for the 2014 RIBA Stirling Prize, with last year’s award going to Astley Castle, near Nuneaton.