Nisa has announced strong growth in its annual results, with sales up 10.5% in value terms and 12.9% in volume year on year.
During the year it recruited 692 stores, and the retail group says that on average retailers who join it see a sales uplift of around 10% in the first year.
Nisa said it was aiming to drive growth through a focused investment plan that has seen a new own label range, which it plans to develop from a £200m to £500m brand, and store formats rolled out in 2014.
Nisa launched the first of its new store formats this month following a detailed analysis of its existing store formats and shopper missions, and both stores opened to a double digit uplift in sales.
Simon Webster, finance director for Nisa, commented: “The convenience sector is in a period of expansion with a number of operators looking to increase their estate, but convenience store development is a tough thing to get right.
“Our new formats recognise that shoppers in different locations want different things, so we can’t simply operate a one size fits all model and say this is going to be the best in the market. The first two new format sites we’ve launched have a very different store offer specific to the local area.
“It’s an evolving project but early signs are positive with the Cardiff store experiencing a sales uplift of 21% in its first week trading and the Peterborough site seeing a 11.5% uplift.”