[5] In 1856, Stevens took part in the competition for the Wellington monument, originally intended to be set up under one of the great arches of St Paul's Cathedral, though it was only consigned to that position in 1892.

Stevens devoted most of his career to this grand monument, constantly harassed and finally worn out by the interference of government, want of money and other difficulties.

Stevens was aware of the position finally decided on for the work, and he suppressed the equestrian group intended for the summit and left the model for the latter feature in a rough state.

On the removal of the monument from the chapel to the inter-columnar space on the north side of the nave for which it was originally designed, the model of horse and man was placed in the hands of another sculptor, to be worked upon and cast in bronze.

[5] The monument consists of a sarcophagus supporting a recumbent bronze effigy of the duke, over which is an arched marble canopy of late Renaissance style on delicately enriched shafts.

At each end of the upper part of the canopy is a large bronze group, one representing "Truth tearing the tongue out of the mouth of False-hood", and the other "Valour trampling Cowardice underfoot".

In Dorchester House (demolished in 1929 to make way for the hotel of the same name), Park Lane, there was some of his work, most notably a mantelpiece supported by nude female caryatids in a crouching attitude, modelled with great largeness of style,[5] now in the central refreshment room at the Victoria and Albert museum.