No. 1 Royal Crescent is the first building at the eastern end of the Royal Crescent in Bath, Somerset, and is of national architectural and historic importance. It is currently the headquarters of the conservation charity, the Bath Preservation Trust, and also operates as a public "historic house" museum displaying authentic room sets, furniture, pictures and other items illustrating Georgian domestic life both 'above stairs' and 'below stairs'. The house was the subject of a major renovation project during 2012 and 2013 (The Whole Story Project) which reunited No. 1 with its original service wing at No. 1A, from which it had been separated during the 20th century.