The union of Dalry Trinity Church and St Margaret’s was determined through the formal processes of the Church of Scotland. Under the Presbytery Mission Plan, the Presbytery reviewed ministry provision within the parish and brought forward a Basis of Union for consultation. Both Kirk Sessions and congregations were given opportunity to consider and respond to the proposal before it was finalised. Following that period of consultation, Presbytery approved the union and enacted it constitutionally, bringing the two congregations together as Dalry Parish Church.