In a note entitled “Waterloo Sunset for B&Q?”, Tony Shiret, analyst at BESI, said: “The main point to come out of [the announcement] in our opinion is the possibility that Kingfisher moves its UK DIY operations onto the Castorama facia. While this was not explicitly said, CEO Veronique Laury would not confirm that B&Q would still be a trading format in the medium term.

“This is not a criticism – we believe that Castorama ‘big box’ is a very credible trading format and more focused on selling product than B&Q, which seems to us over time to be more focused on the back-end, logistics, and buying side of the operation to maximise returns whatever the sales.

“If B&Q were to be terminated as a group format this would have far reaching consequences operationally and financially. Clearly running the UK operation in the same way and with the same range as the French one would theoretically simplify the combined operation and allow consolidation of support functions.”

However, Ms Laury, who ran Castorama before becoming chief executive, ruled out the prospect of the B&Q brand disappearing in the short-term.

She said: “We are not there in terms of our thinking, we don’t want to go too fast.”

Ms Laury announced the closures and her strategy for Kingfisher as the company posted annual results. Sales in the year to the end of January fell 1.4pc to £10.97bn, while pre-tax profits dropped 15pc compared to the previous year to £644m as Kingfisher booked an impairment charge of £350m on leases linked to the closing stores.

However, shares in the company rose 20.10, or 5.5pc, to 384.90p as investors welcomed Ms Laury’s comments.

Sir Ian, Ms Laury’s predecessor, had long warned that B&Q had too much space in the UK and would eventually close stores as leases moved closer to their expiry date.

Ms Laury’s plan involves B&Q closing 15pc of its space, including shutting 60 stores and shrinking six. The Kingfisher boss said that the company believes it can “adequately meet local customer needs from fewer stores”.

The stores were identified after Kingfisher conducted a “catchment by catchment analysis”. Despite the pressure on large out-of-town stores, which has led to supermarkets closing, the B&Qs that will shut are a mixture of large and small shops. These sites were generating fewer sales per sq ft than others close by and Ms Laury claimed that consumers affected by store closures will “still be able to shop with B&Q”.

The Kingfisher boss also denied that Britain was falling out of love with DIY, pointing to the fact that 58pc of Europeans conducted a DIY project last year. However, she admitted that B&Q needs to “update” its range and plans to invest millions in “revitalising” its remaining 300 stores.

Matt Woodhams, retail analyst at Added Value, said: “The issue with B&Q’s brand is it doesn’t communicate the clarity of purpose it once did and no longer has a clearly defined view of its role in the retail landscape. Increasing competition has come from what would have seemed unlikely rivals just a few years ago, such as John Lewis as well as more focused brands like Screwfix.

“With online offering a shopping experience that doesn’t come with the hassle of trailing around a huge warehouse or having to get bulky products home, B&Q needs to look hard at what it wants to be.”