Dr Williams's Library in Gordon Square, London WC1, houses the pre-eminent collection of English Protestant non-conformist literature in the UK. RTA have been involved with many projects to maintain and upgrade the fabric and facilities of the 1849 building built to house students, but converted in the late 1880's for the Library. Current work provides rare book storage in the basement, and the insertion of a lift and new entrance to provide much improved access throughout the building.