The Borthwick Institute for Archives is the specialist archive service of the University of York, York, England. It is one of the biggest archive repositories outside London.[1] The Borthwick was founded in 1953 as The Borthwick Institute of Historical Research.[2] It was originally based at St Anthony's Hall, a fifteenth-century guild hall on Peasholme Green, in central York. Since 2005 it has been based in a purpose-built building, situated adjacent to the JB Morrell Library on the University of York's Heslington West campus. This new building was made possible due to a grant of £4.4 million by the Heritage Lottery Fund[1][3] and designed by Leach Rhodes Walker and Buro Happold.[4]