His notable works include:
- A History of Architecture on the Comparative Method (1896),
- Andrea Palladio: His Life and Work (1902),
- The English Home (1903),
- Gothic Architecture in England (1905),
- Architecture of the Renaissance in England (1907),
- The Building of London (1908),
- London Past and Present (1910),
- The Story of Architecture (1911),
- The Renaissance in Italy (1912),
- Architecture of the Orders (1915),
- The Cathedral of Saint Paul (1916),
- The Great War and the Future of Architecture (1917),
- The City of London (1918),
- The Architecture of the Seventeenth Century (1919),
- The Architecture of the Eighteenth Century (1920),
- The Architecture of the Nineteenth Century (1921),
- The Architecture of the Twentieth Century (1922),
- The History of Architecture: A Comparative Method (1931),
- The Building Trades Dictionary (1932),
- The Architecture of the United States (1933),
- The Temple of Mithras (1934),
- The History of the Royal Academy (1934),
- The Architecture of the Royal Academy (1934),
- The Architecture of the British Empire (1935).