The £18m spend for 2006 compares with a £6.3m investment last year and will fund more than 20 projects, starting with a recent new-build Spar store in Dundonald.
Other developments for 2006 include the re-opening of the company’s first ‘knock-down and rebuild’ Spar Shell filling station in Bangor on March 7.
The group is also investing £3m in its retail partners to help develop their businesses and £6.4m to market its retail brands.
Henderson sales and marketing director Paddy Doody said: “Our significant investment in both our company-owned estate and our retail partners’ businesses demonstrates our commitment to growth. We plan to open 28 new stores in the year ahead and are confident this investment will make it achievable.”