He studied art at the St Martin's Lane Academy in London, where he was a pupil of George Lambert (1700–1765), sometimes regarded as the "Father of English Landscape Oil Painting".
Like his contemporary Francis Hayman, Richards worked as a scene painter in London's theatres (1777–1803).
[citation needed] He is credited with the design of the Chestnut Street Theatre in Philadelphia.
(America's first purpose-built professional theatre, opening in 1793), built for his brother-in-law Thomas Wignell.
He left her a snuff box which was decorated with a picture of her mother and his former lover.