Mackenzie drew architecture almost exclusively. Of 88 drawings which formed his contributions to the exhibitions of the Water-colour Society during his membership, nearly all were English in subject. On his own account, Mackenzie published
Etchings of Landscapes for the Use of Students (1812), ''Architectural Antiquities of St. Stephen's Chapel, Westminster
(1844) and in 1846 Observations on the Construction of the Roof of King's College Chapel, Cambridge''. The bulk of his work was in the following books: • Britton's
Beauties of England and Wales; •
Architectural Antiquities of Great Britain (1807 and 1809—twenty-five drawings engraved); •
History of the Abbey Church at Westminster (Ackerman, 1812—32 coloured aquatints); • Britton's
Cathedral Antiquities (Salisbury Cathedral—58 plates); •
Robert Havell's ''Noblemen's and Gentlemen's Seats'' (drawings dated 1816 and 1819); •
Histories of Oxford and Cambridge (Ackerman, 1814 and 1815—39 plates); •
Colleges of Winchester, Eton, etc., 1816 (13 plates); •
Abbeys and Castles in Yorkshire (with
William Westall); • Pugin's
Specimens of Gothic Architecture, 1821; •
Principal Antiquities of Oxfordshire, Oxford, 1823; •
Memorials of Oxford, by
James Ingram, 1837 (100 plates); •
Charles Heath's
Picturesque Annual, 1839 (six plates); •
Memorials of Cambridge, by
Thomas Wright and
Harry Longueville Jones, 1841; •
The Churches of London, published by
Charles Tilt (drawings dated 1837–9). Among his drawings were ''The King's Coronation
(1822) and The Principal Room of the Original National Gallery, formerly the Residence of John Julius Angerstein, Esq., lately pulled down''. The latter was contributed to the Water-colour Society's exhibition in 1836, and went to the
South Kensington Museum, together with two drawings of
Lincoln Cathedral and one of
Thornton Abbey, Lincolnshire. sepia drawing of
Antwerp Cathedral went to the
British Museum. In 1842 Mackenzie designed the slab which was placed over the grave of
George Barret the younger. ==Family==