Former Deputy London Mayor Jenny Jones has called for the Queen to move to a "bungalow in Bromley or Sutton".
Green Party member Jones - who came third in the London Mayoral election last year with 5% of the vote - has suggested the monarch should switch to the suburbs because "we expect too much of her".
She wrote on Twitter: "Have started a blog on why the Queen should live in a comfy bungalow in Bromley or Sutton. We expect too much of her. (sic)"
The 63-year-old trained archaeologist, who lives in Southwark, added: "Am not sure yet who'll publish the blog."
The tweet received many responses, including one suggesting the Queen should move into a retirement home.
Jenny replied: " Yes. Somewhere with [Prince] Philip."
The London Assembly member later told one follower who thought sending the Queen to Bromley would be a "punishment", that her comment wasn't intended to be "cruel".
She added: "I didn't mean to be cruel. She and Philip could choose a suburb, obviously."
Jones was Deputy London Mayor from 2003-2004 under Ken Livingstone.