1998 Caroline Aldiss founded the event with the support of the London Parks and Gardens Trust and English Heritage. Around 40 private squares participated. For the first few years, the event was organised purely by an extremely committed group of volunteers and grew organically. http://www.opensquares.org/en/more.html
via Facebook http://www.opensquares.org/en/more.html
via Facebook http://www.opensquares.org/en/more.html
