originally named britannic house, citypoint was built in 1967 as a 35-storey, tall headquarters for british petroleum (now bp). this became the first building in the city of london area to pass the height of st paul's cathedral. the designers were f. milton cashmore and h. n. w. grosvenor. in 1991 british petroleum moved back to their original headquarters on finsbury circus and the building was renamed britannic tower.