Lewis Nockalls Cottingham (1787-13 October1847) was a British architect who pioneered the study of Medieval Gothic architecture. He was a restorer and conservator of existing buildings. He set up a Museum of Medieval Art in Waterloo Road, London with a collection of artefacts from demolished buildings and plaster casts of the medieval sculpture.
Cottingham was born in 1787 at Laxfield in Suffolk of a respectable family. He showed a talent for science and the arts early and he was apprenticed to a builder at Ipswich. After several years he moved to London and there placed himself with an architect and surveyor. He commenced his professional career in 1814 at his residence near Lincoln's Inn Fields. Cottingham's first public appointment was as architect and surveyor to the Cooks Company in 1822. Soon after this he erected a mansion in the perpendicular style of Gothic architecture for John Harrison at Snelston Hall in Derbyshire. In 1825 he became architect to Rochester Cathedral[1]