[3][4] In 1961, the year he completed his studies at the Royal College of Art, Berg moved into a flat at Gloucester Gate, a residential terrace designed by the celebrated architect John Nash overlooking Regent's Park.

The park and its changing seasons would be his primary subject for the next 27 years, a period in which he reimagined the long British tradition of landscape painting.

According to the critic Charles Darwent, "Berg, a psychiatrist's son, appraises nature with a cool doctor's eye, noting its symptoms, observing its changes.

There he became known as an eccentric old man, his spine bent double by arthritis, but he continued to paint, focusing now on such landscapes as the Sussex coast and the gardens of Stourhead in Wiltshire.

[3][4] In 1993 the Barbican Centre in London mounted an exhibition of his work, "Adrian Berg: A Sense of Place," that subsequently travelled to Bath, Sheffield, Edinburgh, and other cities in Britain.