 It comprises the Wood Memorial Hall containing the Library, lecture theatre and other small rooms and Neville Hall which was primarily office space that from the beginning until recently was let to various mining and other organisations, such as the Coal Trade Association, Blyth and Tyne Railway, Freemasons and the Law Society.The architect was Archibald Matthias Dunn, whose father, mining engineer and Mines Inspector Matthias Dunn, had been present at the Institute's inaugural meeting.It was built at the height of the English Gothic Revival and shows a mixture of gothic and "Tyneside Classical" themes.