Complex sentence: Cathays Park 1 (aka CP1 or old Crown Building) was built in 1938 by P E Hanton as Board of Health offices, this is a three-storey building with of floorspace, designed in the neoclassical style of architecture.
Split into simpler sentences: Cathays Park 1 (aka CP1 or old Crown Building) was built in 1938 by P E Hanton as Board of Health offices. It is a three-storey building with of floorspace, designed in the neoclassical style of architecture.