Roark Construction Inc built a new high-rise apartment building on a piece of land that it called Randville. Six months after the building was completed, Cooper, the owner of the neighbouring property, proved on the basis of records and documents at the land titles office that Roark's new building extended 1 metre over the boundary between the two properties, and therefore is partially located on Cooper's property. Roark was entirely unaware of that fact during the construction process. Which of the following statements is TRUE?