Green joined the BBC straight from university and has specialised in radio newsreading since 1998.
She said: “I’ve thoroughly enjoyed working for the BBC for over 30 years. Radio 4 listeners have always been very warm and appreciative of what I’ve done, whether doing the Shipping Forecast, reading the news or taking part in the News Quiz. I’ll miss the buzz of live radio, but I’m really looking forward to getting involved in new projects.”
In January 2002, Green was named the most attractive female voice on British radio by RadioTimes.com readers – more than 6,000 people participated in the poll, which saw Terry Wogan voted most attractive male voice.
Green signed an open letter to the then BBC chairman Michael Lyons in 2007, protesting against planned cuts to radio news.
Radio 4 controller Gwyneth Williams said: “Harriet Cass and Charlotte Green have made an immense contribution to Radio 4. We will all miss them - and I know I speak for listeners as well as colleagues.
“They have both chosen to move on and they go with my personal respect and affection as well as the good wishes of everyone who has grown to know and love them over many years.”