A muted green shade with a historical origin, courtesy of our National Trust partnership. Bound on the east by Windmill Lane, Osterley Park is one of the largest open spaces in London, and in it sits a glorious manor house of the same name. Originally built as a country retreat for the banker Sir Thomas Gresham in the mid-1500s, the house was remodelled 200 years later under the direction of celebrated architect Robert Adam. This soft, muted green paint colour, from the main stair and north passage, characterises his exquisite taste and understanding of colour.