Cardiff in making iron and later steel, brought to the sea by packhorse from Merthyr Tydfil. This was first achieved by the construction of a long canal from Merthyr (510 feet above sea-level) to the Taff Estuary at Cardiff. Eventually the Taff Vale Railway replaced the canal barges and massive marshalling yards sprang up as new docks were developed in Cardiff – all prompted by the soaring worldwide demand for coal from the South Wales valleys. At its peak, Cardiff's port area, known as Tiger Bay, became the busiest port in the world and – for some time – the world's
Cardiff Bay attention has been paid to develop affordable housing. With the recent falls in property values, sales in the area have become problematic. Therefore, landlords might be more willing to rent their places out to "people who may not be suited to that type of living." Connecting the bay area to the centre of Cardiff was a primary goal when plans to develop the docklands were first mooted. Original plans included a grand boulevard (similar to where Lloyd George Avenue is located now) with high-density commercial and residential units straddling both sides. This would have created significant demand for quality public