Situated on the island Kvarnholmen, it was built during the mid 17th century around Kalmar Cathedral and became the centre of religious life, justice, education, commerce and municipal management.
The resulting architectural competition was won by British architects Caruso St John in a joint proposal with Eva Löfdahl called Field of stones/Ett stengolv.
The Grand Square was redefined as an open space within the dense urban core, providing respite from the busy shopping streets.
Following its completion in 2003, the project received several awards in 2004 and 2005, including the 2004 Siena Prize of the Association of Swedish architects (Sveriges Arkitekter).
The Square, dominated by former and freshly laid cobblestones and paving stones in walkways, has been designed to provide a large uniform surface to form a cohesive impression without sticking events.