Aldi and Lidl Face UK Land Rules as Expansion Raises Competition Concerns

Aldi and Lidl’s expansion has brought their treatment under UK grocery land rules into question. The competition regulator has provisionally decided to bring both discounters within the Controlled Land Order, which restricts major grocers from using certain land arrangements to limit rivals’ ability to open nearby stores.

The change would put Aldi and Lidl under the same rules as Asda, Co-op, Marks & Spencer, Morrisons, Sainsbury’s, Tesco and Waitrose. The two chains were previously excluded because they were classified as “limited assortment discounters”. The regulator now plans to classify them as “large grocery retailers”, citing their rapid growth.

That shift matters because access to suitable sites can shape where supermarket groups compete. If one retailer’s land arrangements make it harder for another to open a store nearby, the effect may be felt locally in the range of available shops and the pressure competitors face. The proposed change is intended to apply the same limits to Aldi and Lidl as to the other named chains.

Expansion changes the scale of the question

Iceland, which is not covered by the order, backed the provisional decision. In a letter to the regulator published on Thursday, it said the existing rules let Aldi and Lidl use “problematic land arrangements […] at scale” and could have “a material adverse impact on competition for groceries across the UK market”. Iceland argued that the two chains now exert “a significant and compelling degree of competitive influence” in the UK grocery market, unlike when the order was first established.

The scale of their planned growth is central to the case put by rival grocers. Morrisons, Waitrose and Iceland each wrote to the regulator with concerns about further expansion, pointing to plans for Aldi and Lidl to reach 1,500 stores apiece. That figure describes the goal cited by the retailers’ critics; the source does not say when either chain expects to reach it.

For grocers competing for sites, the proposed rule change could affect the terms on which they pursue store locations. For customers, the potential effect is more local: whether rival retailers can establish a presence in the same areas. The regulator’s executive director for competition enforcement, Juliette Enser, said the rules would “help level the playing field and make sure shoppers get the best choice of products and prices in their area”. That is the intended outcome, while the effects will depend on how the rules are applied and what sites become available.

Disagreement over what counts as a major grocer

Aldi and Lidl have argued that their smaller product ranges mean they should not be treated as large grocery retailers. Morrisons challenged that reasoning, saying both chains “publicly market their product range as being suitable for a full weekly shop”. It also said they compete intensely in product categories where they say their ranges are weaker.

The dispute turns on how the retailers are classified, as well as how their land arrangements affect competition. A narrower product selection may distinguish a discounter from a full range supermarket, but Morrisons’ argument is that customers can still use those stores for a full weekly shop and that the chains compete across key categories. The regulator’s provisional view is that their expansion has made the existing classification less suitable.

Waitrose told the regulator it had seen Lidl use the land order to “restrict the ability of other grocery retailers to open new stores and shield Lidl from local competition”. It urged the regulator to put its decision into effect without delay, arguing that equal opportunity to secure grocery sites matters as the groups seek further locations. Those claims come from a competitor with its own interest in access to sites; the proposed rules will determine how the restrictions apply across the named retailers.

Both chains say store growth will continue

Aldi and Lidl responded to the provisional ruling in August by saying it would not slow their UK expansion plans. Aldi said it remained committed to opening hundreds of new stores across the country. Lidl said it would continue opening stores and bringing its groceries to more communities.

Their statements signal that both chains intend to keep pursuing growth, even if the rules change. The immediate point to watch is how the regulator finalizes and applies the proposed extension, and how that affects the process of securing sites. For rival grocers, the stakes are access to locations; for shoppers, the practical test will be whether nearby choices and prices are affected as the store networks grow.