In 1986, Sargy Mann was introduced Christopher Burness, founder of Cadogan Contemporary which was at the time situated on Pont Street. Mann had not shown significantly in 10 years, but when Burness saw the work at the artist’s house in Peckham, he offered him a show on the spot. His first solo exhibition in 1987 was an immediate success and turned out to be the first of eighteen solo exhibitions with the gallery.

In the summer of 1987, the family's took a trip to Tuscany, one of the first of many holidays in the region. Throughout the 1990s, Frances and Sargy both taught at the Verrochio Centre near Sienna for several summers. Sargy particularly enjoyed the strong, bright Italian light which allowed him to observe subjects which he had difficulty seeing in the more muted English light.

Thanks to the commercial success of his exhibitions, Mann was very soon able to stop teaching (which had become increasingly difficult due to his failing eyesight) and devote himself entirely to his work. He continued to experiment with perspective and the effects of light on landscapes and forms. His visual language evolved constantly, adapting both to his findings and to the changes in his worsening eyesight.