Sir Sandy, 63, will continue in his duties as LGA chairman, a post which he has held since July 2004, before which he spent two years as vice-chairman of the association and of the LGA executive.
Born in Wakefield in 1942, Sir Sandy farmed in Zimbabwe before settling in Kent in the 1960s, where he has concentrated on fruit growing and packing.
Meanwhile, in a press release from Kent CC, Paul Carter, who took over as council leader last October, said that he knew he spoke for many hundreds of the county's residents when he expressed his delight at the news.
'Sandy is an inspiration not just to those of us at County Hall who know him and work with him but to everyone who comes into contact with him. Whatever the issue, it receives his unstinting time, vision and commitment.'
Sir Sandy said: 'I am deeply grateful to so many people in Kent who supported me throughout my time leading the county council and I am delighted now to have a new and national opportunity. I will serve to the very best of my ability, whatever way the House of Lords develops, and work to promote the interests of Kent and the values that so many of us share.'
Sir Sandy was elected a county councillor in 1989 and became leader of the Conservative group in 1993. He was leader of the council from 1997 until October 2005.
He is chairman of the Kent Thameside Delivery Board and a trustee of the Institute of Social Justice.
Working life peers list