A seven strong shortlist headed by Adjaye Associates and BIG is chasing a competition to design a £25 million pavilion to be built on a site below Edinburgh Castle.

The pavilion will replace the existing 1935 Ross Bandstand which hosts the city’s Hogmanay celebrations and the Edinburgh International Festival’s closing fireworks concert but has fallen into disrepair in recent years.

Also on the shortlist is last year’s Doolan Prize winner Page\Park – which is leading the restoration of the fire-ravaged Mackintosh building in Glasgow – as well as the practice of Shard project architect William Matthews and Flanagan Lawrence.

Overseas bidders Reiulf Ramstad Arkitekter, which is based in Norway and whose best known work is a public park in the Trollstigen area of the country, and US practice wHY, which has offices in New York and Los Angeles, complete the list.

The competition, which is being organised by Malcolm Reading Consultants, attracted 125 entries from 22 different countries including Australia, Japan, India and the US.

An open day for the finalists will be held next month and the teams will have until June 9 to work up concept designs.

A public and digital exhibition will be held a few days later with a winner due to be announced in early August.

The competition has been organised for arts charity the Ross Development Trust and Edinburgh city council.

The judging panel will be headed by Edinburgh-based Apex Hotels founder Norman Springford who is also chair of the trust. Other members include MYAA Architects director Ada Yvars Bravo, former National Museums of Scotland director Mark Jones and writer Alexander McCall Smith.

Construction is expected to begin in 2018.