Citizen Space is an open-source online consultation platform built for the UK government to facilitate public participation in policymaking [1]. It was developed over 14 months at a cost of £400,000 through collaboration between the government and Delib [2]. Citizen Space provides core functions like online surveys, analysis of responses, and reporting [3]. It has been used by over 30 government departments and agencies to date to efficiently and legally gather public input across departments on policy issues [1][4].