[1] It had emerged out of the "Newton Says No" group, who campaigned to stop housing development within the area.
[2][3] In February 2023, two members of Newton Abbot Town Council joined the party.
[4] In the 2023 Teignbridge District Council election, the SDA won 9 seats.
[5] One candidate was David Knopfler from Dire Straits who contested Ashburton and Buckfastleigh ward.
[7] Liam Mullone was the South Devon Alliance candidate in Newton Abbot constituency in the 2024 United Kingdom general election.