Listed buildings in Cardiff Bay Dock to the east and the mainline railway to the north. Listed buildings in Cardiff Bay There are many listed buildings in Cardiff Bay, part of Cardiff, capital city of Wales. A listed building is one considered to be of special architectural, historical or cultural significance, and has restrictions on amendments or demolition. Buildings are listed as either Grade I, II* and II buildings lists, with the Grade I being the most important. Cardiff Bay describes the redeveloped docklands area of the city, including the neighbourhoods of Butetown and Atlantic Wharf, previously better known as Tiger Bay. It is bounded
Cardiff Bay Barrage 85% to 78% as a result of lower levels of winter survival. The freshwater lake had problems with blue-green algae initially which made it impossible to swim in the water or participate in water sports. These issues have now largely been resolved though some toxic algae remain in some of the dock areas in the bay. Cardiff Bay has become the first area of freshwater in Wales to be infested with zebra mussels – an alien species to the UK which multiplies rapidly to the detriment of native marine life. The Cardiff Harbour Authority has decreed that "Personal watercraft" used