When did they start using bricks in the UK?

Bricks have been used in the UK since at least the Roman period, around the 1st century AD, when they were introduced by Roman builders. However, brickmaking became more widespread during the medieval period, particularly in the 12th century, as a response to the demand for durable building materials. The development of brick kilns and improvements in firing techniques further popularized brick use in construction throughout the subsequent centuries.