The Holyrood parliament was officially opened in October

The building, which was completed last year, was named Best Publicly Funded Building and won the overall Architecture Grand Prix at the event.

The Holyrood project was dogged by controversy over delays and spiralling costs. The final price tag was �431m.

Benedetta Tagliabue, the widow of architect Enric Miralles, was in Glasgow to receive the award.

Ms Tagliabue stepped up her involvement in the Holyrood project following the death of her husband in July 2000.

She worked towards the completion of the parliament within the couple's architectural practice EMBT and in partnership with Edinburgh-based firm RMJM.

Ms Tagliabue said she hoped the award, as well as another major prize in Spain, would at last lay to rest the controversy surrounding the building.

The parliament was awarded Spain's greatest architectural prize in April by the VIII Biennal of Spanish Architecture - the Manuel de la Dehesa award.

A month earlier the Parliament picked up the Edinburgh Architectural Association's prestigious centenary medal.

The Scottish Parliament's Presiding Officer, George Reid, welcome the accolades awarded to the Holyrood building.

He said: "These latest architectural accolades from the Scottish Design Awards build on the parliament's strong international reputation as a design project of real significance.

"Holyrood's architectural awards and nominations are a fitting tribute to everyone who helped bring our parliament building to fruition.