During the service the Rector, Canon George Irwin, drew attention in his address to the very challenging social and economic circumstances in 1975 when the new Church of St. Mark was consecrated for the conduct of worship and the adjoining Parochial Hall dedicated for the carrying out of a wide range of activities. He paid tribute to the faith and courage of the Select Vestry and parishioners of 40 years ago who were responding to the challenge of providing for the spiritual and social needs of a growing community in North Lisburn. Such was their spiritual commitment that they proceeded with this major project even as the inflation rate was often bordering on 20% and unemployment steadily rising.
Since 1975 several additions and improvements were made to the suite of buildings including the erection of the Canon Jones Hall in 1986, the installation of a new organ in 1992, the building of a new kitchen and Committee room in 1994 and the creation of an additional car park in 1999. Then in 2010 a major renovation of the building complex was carried out and was accompanied by a re-design of the worship area resulting in the beautiful liturgical space which exists today with excellent lighting and acoustics and the enhancement of a high-level stained glass screen.