Plans for a major £20m (EUR23.8m, US$31m) mixed-use development on Saudi Arabia's east coast have been unveiled by the UK-based multi-disciplinary firm, Capita Symonds.

The firm designed the 50,000sq ft (4,645sq m) project on behalf of a private client, which is poised to include a new gymnasium and a spa facility within a six-storey building.

It is expected that work will start in early 2012, with the design of the building incorporating a triple-skinned façade with chevrons of stainless steel and LED-lit faceted acrylic crystals.

Due for completion in 2013, the building also boasts a roof formed as a balanced wing with tapering edges to all sides and a gold leaf soffit to reflect light from the top floor.

Capita Symonds' Chris Boyce said: "The crystals on the façade and gold leaf underside to the roof are a nod to the client's connections to the precious stones and gold trade."

Details: www.capitasymonds.co.uk