Regency architecture refers to a style of building that emerged in Britain during the early 19th century, particularly between 1811 and 1820, when King George IV ruled as Prince Regent. This architectural style is characterized by its elegant proportions, decorative details, and the use of classical elements, such as columns and pediments. Common features of Regency architecture include large windows, symmetrical facades, and the incorporation of natural materials like brick and stone. Notable examples can be found in cities like Bath and Brighton, where grand terraces and villas showcase the style's emphasis on beauty and harmony in design.