Victorian Architecture: Its Practical Aspects. (Newton Abbot: David and Charles [Holdings] Ltd., 1973).
ISBN 0 7153 6027 2

The Cemeteries and Burial Grounds of Glasgow (City of Glasgow District Council Parks Department, as a contribution to European Architectural Heritage Year 1975). Non-ISBN

Ironwork in Glasgow A pamphlet concerning cast- iron features of the Victorian era in Glasgow (The Scottish Civic Trust for European Architectural Heritage Year 1975) . Non-ISBN

The Erosion of Oxford (Oxford: Oxford Illustrated Press Ltd., 1977). ISBN 0 902280 40 6. A study of how the fabric of the humbler buildings has deteriorated through blight, official policies. demolitions, and gradual changes

English Architecture: an Illustrated Glossary (Newton Abbot: David and Charles [Publishers] Ltd., 1977). ISBN 0 7153 7110 X. A comprehensive dictionary of architectural terms, fully illustrated, aimed at the conservationist approach

* Mausolea in Ulster (Belfast: Ulster Architectural Heritage Society, 1978) A comprehensive illustrated study of Mausolea in Northern Ireland. 
Non-ISBN

* MONEYMORE AND DRAPERSTOWN. The Architecture and Planning of the Ulster Estates of the DRAPERS’ COMPANY (Belfast: Ulster Architectural Heritage Society, 1979). Non-ISBN

A Celebration of Death. An introduction to some of the buildings, monuments, and settings of funerary architecture in the Western European tradition (London: Constable & Co. Ltd., and New York: Scribners, 1980). ISBN 0 09 463000 3

* The History, Architecture, and Planning of the Estates of the Fishmongers’ Company in Ulster (Belfast: Ulster Architectural Heritage Society, 1981). Non-ISBN

The Egyptian Revival. An introductory study of a recurring theme in the history of taste (London, Boston, and Sydney: George Allen & Unwin [Publishers] Ltd., 1982). ISBN 0-04-724001-6

The Life and Work of Henry Roberts, Architect (1803-76). The Evangelical Conscience and the Campaign for Model Housing and Healthy Nations (London and Chichester: Phillimore & Co. Ltd., 1983). ISBN 0 85033 446 2

Winchester Walks (Southampton: Paul Cave Publications Ltd, 1983). ISBN 0-86146-038-3

The Londonderry Plantation 1609-1914. The History, Architecture, and Planning of the Estates of the City of London and its Livery Companies in Ulster (Chichester: Phillimore & Co Ltd, 1986). ISBN 0-85033-577-9

English Architecture: an Illustrated Glossary (Newton Abbot: David & Charles Publishers plc, 1987). New revised edition of the book originally published in 1977. ISBN 0-7153-8887-8

English Architecture: an Illustrated Glossary (Toronto, Ottawa, Halifax, Winnipeg, Edmonton. & Vancouver: Fitzhenry & Whiteside Ltd, 1987). ISBN 0-88902-943-1

Victorian Architecture (Newton Abbot: David & Charles Publishers plc, 1990). ISBN 0‑7153-9144-5

Simon Stringer, Sculptor Catalogue of Exhibition at the Goldmark Gallery, Uppingham (Uppingham: Goldmark Gallery, 1990). ISBN 1-870507-09-6

The Art and Architecture of Freemasonry. An Introductory Study (London: B T Batsford Ltd, 1991). Winner of the RIBA Sir Banister Fletcher Award for Best Book of the Year on Architecture, 1992. ISBN 0-7134-5827-5

The Art and Architecture of Freemasonry. An Introductory Study (Woodstock & New York: Overlook Press, 1993).
ISBN 0-87951-494-9

Classical Architecture. An Introduction to Its Vocabulary and Essentials, with a Select Glossary of Terms (London: B T Batsford Ltd, 1992). ISBN 0-7134-6772-X

Victorian Architecture (Newton Abbot: David & Charles Publishers plc, 1992) Paperback edition of the 1990 hardback. ISBN 0-7153-9144-5

Classical Architecture. An Introduction to its Vocabulary and Essentials, with a Select Glossary of Terms (New York: Van Nostrand Reinhold, 1992). ISBN 0-442-30896-5

Georgian Architecture (Newton Abbot: David & Charles Publishers plc, 1993). ISBN 0-7153-9851-2

The English Heritage Book of Victorian Churches (London: B T Batsford Ltd & English Heritage, 1995).
ISBN 0 7134 7491 2 (pbk.) and 0 17134 7490 4 (hbk.)

Georgian Architecture (Newton Abbot: David & Charles, 1996). ISBN 0 7153 9851 2
Oxford Dictionary of Architecture (Oxford: Oxford University Press, 1999). ISBN 0-19-210006-8

Oxford Dictionary of Architecture  in the Oxford Paperback Reference Series (Oxford: Oxford University Press, 2000) ISBN 0-19-280017-5

The Honourable The Irish Society and the Plantation of Ulster, 1608-2000: The City of London and the Colonisation of County Londonderry in the Province of Ulster in Ireland. A History and Critique (Chichester: Phillimore & Co Ltd, 2000). ISBN 1 86077 136 X

Classical Architecture. An Introduction to its Vocabulary and Essentials, with a Select Glossary of Terms (London: B. T. Batsford Ltd., 2001). ISBN 0 7134 8684 8

Classical Architecture. An Introduction to its Vocabulary and Essentials, with a Select Glossary of Terms (New York & London: W.W. Norton & Co. Inc., 2001). ISBN 0-393-73119-7

Piety Proclaimed. An Introduction to Places of Worship in Victorian England (London: Historical Publications Ltd., 2002). ISBN 9780948667770

Death and Architecture. An Introduction to Funerary and Commemorative Buildings in the Western European Tradition, with Some Consideration of their Settings (Thrupp, Stroud: Sutton Publishing Ltd., 2002). ISBN 0-7509-2877-8

A Dictionary of Architecture and Landscape Architecture (Oxford: Oxford University Press, 2006).
ISBN 9780192806307 (hbk.) and 978019860679 (pbk.)

Victorian Architecture: Diversity & Invention (Reading: Spire Books Ltd., 2007). ISBN 978-1-904965-06-0