Discount will be the UK’s fastest growing physical channel to 2030, reaching a value of over £50bn with a CAGR of 3.5%. In the near term, that is being accelerated by a renewed focus on network investment: more stores in better locations drives both trial and repeat trips, and helps discounters capture more of the top-up mission that has traditionally favoured convenience and smaller supermarkets.

That strategic emphasis is clear in 2026 plans, with the two market leaders in the channel committing substantial capital to expansion, logistics and store modernisation.

Aldi is investing £370m in 40 new store openings in 2026, forming part of a broader £1.6bn two-year investment programme as it works towards a long-term ambition of 1,500 UK stores. The discounter is targeting underserved catchments as well as high-footfall urban sites, with a particular focus on increasing its London presence. Alongside new openings, Aldi is also beginning to trial a “globally unified” store format developed for Aldi Süd markets, designed to be modular and adaptable across different building types. While this is unlikely to have an immediate impact on suppliers, it could in the longer term.

Lidl’s plan is similarly ambitious. With more than 1,000 stores now trading in country, it has committed over £600m to strengthen its UK infrastructure and open more than 50 new stores over the next 12 months. As well as expanding the estate, the investment supports the capabilities required to service a broader network, including a new regional distribution centre in Leeds and further investment at its Belvedere site in London. For the wider market, this matters because the battle for growth is increasingly a battle for sites: retailers that can secure prominent, high-footfall locations will be best placed to capture incremental trips as shoppers continue to prioritise value.

Property rules are also becoming a point of contention. The Groceries Market Investigation (Controlled Land) Order 2010 restricts designated large grocery retailers from using certain land agreements that can prevent competing grocers from opening nearby. Aldi and Lidl have historically not been designated under the Order, reflecting the way their limited-range model was viewed when the rules were first introduced. However, with discounters now competing directly for mainstream baskets and prime locations, several major retailers have argued that the current exemption creates an uneven playing field. The Competition and Markets Authority (CMA) is reviewing whether Aldi and Lidl’s designation should change, with a provisional decision likely in July and a final ruling in September.

Beyond grocery, high street disruption could also reshape the available sites for discount operators. Poundstretcher has sought court approval for a restructuring plan that would ask landlords to reduce rents across its circa 300-store estate; the business has warned it would likely have to enter administration if the plan is not approved. In an administration scenario, store disposals or lease renegotiations could release a meaningful number of units into the market—particularly in town-centre and edge-of-centre locations that align with the discounters’ growing appetite for higher-footfall, more urban areas. Poundland’s recent changes under new ownership (including planned store closures as part of a wider reset) underscore a similar theme: value retail is not immune to cost pressures, and rationalisation can create opportunities for stronger players.

There is also an operational dimension to potential restructuring. Where estates are sold or resized, associated supply chain assets such as distributions centres can become available. These can be used as enablers for rapid rollout by an acquirer, or as assets that can be repurposed by third-party logistics partners. In a market where speed-to-open and cost-to-serve are critical, these behind-the-scenes factors can be as important as the headline store numbers.

It’s not only grocery discounters that are scaling up. Variety discounters such as Home Bargains and B&M are continuing to expand their footprints as well, supported by consumers’ sustained focus on value and by the availability of second-hand space in some high streets and retail parks. As more value operators compete for prominent units, location strategy becomes a differentiator: the winners will be those that can balance headline footfall with the practicalities of servicing smaller, more numerous stores profitably.

Looking ahead, three developments will shape the next phase of UK discount growth:

• the pace at which Aldi and Lidl can secure high-footfall sites, especially in urban areas

• the outcome of the CMA’s review and whether it changes how discounters can use land agreements

• the extent to which high street restructuring releases sites that can be reconfigured for modern discount formats

Discount is still a growth story but the constraints are shifting from consumer demand to property, regulation and operational execution.