Biagi won the seat of Edinburgh Central in the 2011 Scottish Parliament elections, defeating the Labour incumbent Sarah Boyack by a narrow margin of 237 votes but achieving only the second lowest share of the vote of any successful SNP constituency candidate. He is understood to be the youngest person to have won election to the Scottish Parliament in a constituency seat. When he was sworn in as an MSP he took the oath in his native English and also Italian. His maiden speech was in praise of renewable energy on 2 June 2011 followed by staging the first Member's Debate of the parliamentary term on 8 June in support of the campaign for the UK Green Investment Bank to be situated in Edinburgh. Although the campaign was successful, Biagi changed to a more critical stance when it emerged that the majority of staff were nonetheless based in London rather than his constituency. Biagi has also been a persistent critic of the Edinburgh tram project, which runs through Edinburgh Central, and which he described as "an overpriced downgrade" after suggestions that it would have a longer journey time than the existing airport bus. He publicly supported the retention of the SNP's policy of non-NATO membership in 2012 against a change proposed by the party's leadership, a stance which the deputy leader of the Scottish Conservatives suggested resulted in him being passed over for promotion as a Minister that autumn. After Jean Urquhart resigned from the SNP over the NATO policy change Biagi replaced her as Deputy Convener of the Scottish Parliament's Equal Opportunities Committee in October 2012. In 2013 Biagi laid amendments to the Post-16 Education Bill to create duties on agencies including the Scottish Funding Council to support widening access to further and higher education, which were passed by Parliament with Scottish Government support. Shortly after he was elected as Honorary President of the Federation of Student Nationalists. Openly gay since before he was elected, for his contributions in support of the passage of Scotland's same-sex marriage bill Biagi was named on the inaugural Scotland on Sunday Pink List of 50 influential LGBT Scots in 2014. Biagi joined the Scottish Government as Minister for Local Government and Community Empowerment in November 2014. While in this role, in February 2015, he was appointed as co-chair of the Commission on Local Tax Reform - a cross-party group set up by the Scottish Government, tasked with examining alternatives to the Council Tax.
