He was Recruitment Advisor to the Ministry of Defence, 1970–1971, and Chairman of Tyzack & Partners, 1979–1985. He was also a director of British Home Stores, 1973–1987. He lived in the village of Long Melford in Suffolk. In retirement, as of 2008 he lived in London. Atcherley died on 29 January 2017, aged 98.
Atcherley married first, in 1946, Anita Helen Leslie. They had one son and two daughters and divorced in 1990. He married secondly, in 1990, Elke Jessett, the daughter of Carl Langbehn (she died in 2004). He married thirdly, in 2005, Sarah Mordant.
In the aftermath of the 9/11 attack on the World Trade Center, Atcherley, writing in The Independent, ascribed the fundamental causes of the disaster to the non-observation by the British government of the Balfour Declaration. He wrote to The Times on 3 August 2006: "How can the Israelis, Bush and Blair think they can ever achieve lasting peace in the Middle East by allowing Israel to continue its futile attempt to 'defeat' Hezbollah? ...Unless military action is replaced by negotiation, I can only see disastrous consequences for our relations with the Muslim world."
On 6 September 2001, a letter from Atcherley was published in London's The Independent newspaper, headed Reports of my death... and enquiring why for two years running the newspaper had failed to include his name in its Today's Birthdays column. He suggested:
It occurs to me that it may be because I am dead without being aware of it. This is perhaps too fanciful, if only because, as far as I am aware, my name has not yet appeared in your Deaths section... My own hunch is that my supreme unimportance may have something to do with it.
His birthday, however, has continued to be reported in The Times.
British Army