Grade A-listed Thomas Hamilton building has been largely empty for more than 25 years

Plans to transform Edinburgh鈥檚 grade A-listed Thomas Hamilton building into new premises for the National Centre of Music have been given the green light.

Richard Murphy Architects鈥 proposals for the Royal High School Preservation Trust were approved by Edinburgh council earlier this week.

They will see the creation of a major new cultural destination in the neo-classical building, a monumental former high school built in 1829 which was once mooted as a possible home for the Scottish Parliament.

Thomas Hamilton 4

The listed former high school was built in 1829

Once complete, the building will include three performance spaces, rehearsal rooms and a recording studio providing a centre for Scotland鈥檚 music sector.

New gardens and outdoor areas, a caf茅, conference and business facilities will also be built alongside a vaulted bar with views over the city鈥檚 New Town, a Unesco world heritage site.

Royal High School Preservation Trust executive director Grant MacKenzie said: 鈥淭he Royal High School is both architecturally and culturally significant for Edinburgh, and we鈥檙e grateful to Edinburgh city council for allowing us to bring it back into public use as an exciting indoor and outdoor cultural destination.鈥

The plans are the latest in a series of failed development proposals for a building which has been mostly vacant since plans to transform it into the home of the Scottish Parliament were shelved in 1997.

A proposal to turn it into a hotel in 2010 came to nothing and was replaced with another hotel proposal in 2015 by Hoskins Architects which would have included two six-storey wings on either side.

This scheme was widely condemned by heritage campaigners and refused planning by councillors.

Main Hall-Lighting

View of how the building鈥檚 main hall will look under the plans

A revised plan for the hotel was then followed by a proposal from St Mary鈥檚 Music School which stalled after an objection from the developers.

An Edinburgh Council spokesperson said the plans by Richard Murphy will 鈥減reserve an iconic listed building in Edinburgh鈥檚 historic core in an enduring and sustainable use.

鈥淭he scheme is conservation-led and the proposed interventions are informed by thorough research of the building and its historical development.鈥

Funding for the redevelopment is being supported by a 拢45m cash injection from the Dunard Foundation.