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ACCC Moves to Block Coles' Kalgoorlie Supermarket Lease Over Competition Concerns

ACCC Moves to Block Coles' Kalgoorlie Supermarket Lease Over Competition Concerns
Stocks · 2026
Photo · Marcus Devlin for Daily Digest Invest
By Marcus Devlin Equities Correspondent Jun 30, 2026 4 min read

Australia's competition watchdog is taking action to prevent Coles from leasing a vacant site in the Western Australian town of Kalgoorlie-Boulder for a new supermarket and Liquorland outlet, warning the move could squeeze out an independent rival and reduce competition in the local grocery market.

The Australian Competition and Consumer Commission (ACCC) said the proposed lease would give Coles a dominant position in the area, potentially forcing a smaller independent grocer out of business. The regulator's intervention underscores its heightened focus on market concentration in Australia's supermarket sector, where Coles and Woolworths together control roughly two-thirds of the national grocery market.

What the ACCC Is Arguing

The ACCC's concern centers on the specific location in Kalgoorlie-Boulder, a mining and regional hub about 600 kilometers east of Perth. The regulator argues that if Coles secures the lease for a supermarket and a Liquorland bottle shop, it would effectively corner the local market, leaving little room for an independent competitor to survive.

"The proposed lease would likely result in a substantial lessening of competition in the local grocery market," the ACCC said in its submission. The regulator believes that without the Coles development, the independent rival would have a better chance to grow and offer consumers more choice and lower prices.

This is not the first time the ACCC has challenged Coles or Woolworths over property deals. The regulator has previously raised concerns about the major chains using land holdings and restrictive leases to block competitors from entering shopping centers or developing new sites.

Why This Matters for Investors

For everyday investors, this case is a reminder that regulatory risk is a real factor when investing in dominant companies. Coles is one of Australia's largest listed retailers, and its ability to expand into new locations is a key driver of revenue growth. If the ACCC successfully blocks this lease, it could signal a tougher stance on future property deals by both Coles and Woolworths.

"The supermarket sector is already highly concentrated, and the ACCC is signaling it will not tolerate moves that further entrench that concentration," said a market analyst. "Investors should watch for any broader regulatory actions that could limit the growth strategies of these companies."

The case also highlights the importance of local competition for consumers. In regional areas like Kalgoorlie-Boulder, where options are already limited, the loss of an independent grocer could lead to higher prices and less choice. That dynamic is something the ACCC is keen to protect.

For context, Australia's grocery market has been under increased scrutiny in recent years. A 2023 parliamentary inquiry into supermarket pricing examined allegations of price gouging and anti-competitive behavior by the major chains. The ACCC has also been investigating loyalty program data practices and supplier relationships.

What Happens Next

The ACCC's move is the first step in a legal process. Coles will have the opportunity to respond to the regulator's concerns, and the case could ultimately be decided by the Federal Court. If the ACCC succeeds, Coles would be blocked from proceeding with the lease, and the independent rival would have a clearer path to establish itself in the area.

Coles has not yet publicly commented on the ACCC's action, but the company has previously defended its expansion plans as pro-competitive, arguing that new stores give consumers more options and drive down prices.

The outcome of this case could set a precedent for how the ACCC handles similar property deals in the future. Investors in Coles and Woolworths should monitor developments closely, as any restrictions on expansion could affect long-term earnings growth.

In the meantime, the Kalgoorlie-Boulder community will be watching closely. For a town that relies on mining and agriculture, access to affordable groceries is a daily concern. The ACCC's intervention suggests that even in a remote corner of Australia, competition policy matters.

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