Tom studied Archaeology and Anthropology at the University of Cambridge before training at the Institute of Advanced Architectural Studies at the University of York and achieved an MA with distinction in the Conservation of Historic Buildings. He established and ran Addyman & Kay, subsequently Addyman Associates and later Addyman Archaeology. This is now one of the leading archaeological companies in the north of Britain concerned with historic building, recording and analysis.
Tom has extensive experience as an archaeologist and has participated in over 300 archaeological excavations in the UK and internationally. For a number of years he worked in Central America on archaeological sites of the Maya, in the United States on colonial period sites and Native American sites. He spent four years in Puerto Rico as the Deputy State Historic Preservation Officer working on colonial Spanish sites and buildings for the Governor's Office.
Tom has carried out archaeological work for the National Trust for Scotland on many projects including Culzean Castle, Ayrshire; 26-31 Charlotte Square Edinburgh; major surveys at Pitmedden Garden and Brodick Castle. He also oversaw a two-year-long archaeological and analytical study at Newhailes House and designed landscape in Musselburgh. A series of inter-related recording, analytical and historical studies have contributed significantly to the ongoing restoration of Ossian's Hall and the Hermitage Gardens at Dunkeld in Perthshire, also for the National Trust for Scotland.
He directed a comprehensive analytical survey of the Riding House Range at Bolsover Castle in Derbyshire for English Heritage and a similar project involving Queensberry House in Edinburgh for the Scottish Parliament. He ran important excavations over three seasons at Dunure Castle in Ayrshire, a complex multi-period maritime fortress, and at Dreghorn near Irvine, where a developer-funded project revealed one of the most extensive neolithic and medieval rural landscapes excavated in Scotland in recent years.
Tom has been involved in the assessment of cultural significance of a number of historic buildings and sites including a lead role in the conservation plan for St Giles’ Cathedral, Edinburgh and recently the Mint Yard, York.
Tom was a principal contributor to the Scottish Parliament archaeology project report focusing on Queensberry House, and of Understanding Historic Buildings in Historic Scotland's Technical Advice Note: Recording Historic Buildings, the leading technical publication in this field. He was also principal author and editor of Kirk Ness, North Berwick, reporting the excavations of this major pre-Reformation Scottish site completed in 2006, aimed at a wide readership, and currently in production.
Tom has also acted as consultant on a number of large-scale landscape assessment projects including Chillingham Park, Northumberland; Dalquharran Estate, South Ayrshire; Newhailes Estate, Musselburgh; Mavisbank Estate, Midlothian; and the landscape surrounding Lindisfarne Castle. He also undertook the Culzean to Dunure Coastal survey in south Ayrshire and multiple landscape assessments for the Discover Bute Landscape Partnership Scheme.