Polychrome brickwork

He gave as examples Tuscan and Venetian Romanesque and Gothic buildings such as the Doge's Palace in Venice, which has a facade of white stone and pink marble in a diaper pattern (which is in fact a veneer).

The use of coloured brick effects became quite popular in Gothic Revival across the United Kingdom, often in combination with stone, usually with far less elaboration that Butterfield.

Some architects in the 1870s-80s were more enthusiastic, such as in the work of Watson Fothergill in Nottingham, and in Bristol in the 1860s-80s it was often used is what is now known as 'Bristol Byzantine' style, for instance the 1869 Welsh Back Granary.

Crouch & Wilson and Percy Oakden soon also employed it on church design, while Reed also applied it on houses, notably the Rippon Lea Estate.

[3] Rare examples of its use can be found in elsewhere, however it is most prevalent in the Architecture of Melbourne, where it began, and where it became increasingly popular, reaching a peak in the boom years of the 1880s when it was used extensively on all manner of buildings from terrace houses to villas, from shops to factories.

Menier Chocolate Factory, Noisiel, France, 1872, a particularly elaborate example of polychrome brickwork.
Porch of All Saints, Margaret Street, 1850-59, William Butterfield
St Michaels Church, Collins Street, 1866, doorway details. It is considered the first example of elaborate polychrome brick in Australia