The housebuilder’s warning over building cost inflation comes as other construction firms have also cautioned about the impact of the Iran war on UK housebuilder costs
Housebuilder MJ Gleeson has raised concerns over building cost inflation, triggering “higher than usual caution” regarding its financial position.
The Sheffield firm, which specialises in homes at the lower end of the housing market, said: “We have recently seen some softening in footfall and reservations, and limited increases in the cost of some materials.”
The effective blockade of the Strait of Hormuz resulting from the Iran conflict has sent supply chain and energy costs soaring, with construction firms cautioning this could drive up building expenses.
Housebuilders have also indicated that inflation fears are dampening demand for new homes, with MJ Gleeson noting it has witnessed appetite beginning to decline.
“This, together with ongoing challenges with planning and site viability, prompts even higher than usual caution in how we manage the business, including land investment decisions, into the next financial year,” chief executive Graham Prothero stated, as reported by City AM.
However, MJ Gleeson reported it has experienced robust trading at the beginning of this year, with net reservation rates exceeding those from the same period last year, at 0.88 compared to 0.86.
The housebuilder’s share price surged more than 2 per cent on Friday’s opening, reaching 234p, though the stock remained down over 44 per cent year-to-date.
Other construction companies have cautioned in recent days and weeks that the anticipated effects of the Iran conflict on the sector have started to materialise. Proservice Building Services Marketplace also issued warnings about difficulties confronting the construction industry on Friday as it reported revenue that missed market forecasts.
The AIM-listed digital marketplace for building tools and supplies, previously known as HSS Hire before the latter’s sale last year, said on Friday it had experienced “broader macroeconomic pressures – particularly within the UK construction sector, which has weighed on demand across parts of the Group’s end markets”.
Proservice witnessed a substantial 18% decline in its share price on Friday’s opening, to 3.15p, driving the stock to a 56 per cent tumble in the year to date.
There is “an uncertain macro-economic backdrop which is having an impact on both our buyers and sellers,” the company stated.
The firm reported revenue of £248m for the year ending March, beneath analyst expectations of £260m, and said its pre-tax earnings were “expected to be at breakeven.”
Proservice said it was also encountering obstacles in its attempts to refinance its £41m bank debt, with existing facilities due to expire in September. “Wider macroeconomic and geopolitical issues have resulted in discussions taking longer than previously guided,” the company said.
On Thursday, FTSE 100 housebuilder Persimmon said it is starting to witness cost inflation entering its supply chain. The company said: “There are early signs of increased inflation in the supply chain, driven by higher energy costs, which are likely to impact the second half of 2026 and into 2027.
“We are looking to mitigate these where possible through our strong relationships with our suppliers and subcontractors.”
The government is relying on housebuilders to achieve its 1.5m homes target, yet rising construction cost inflation is compounding existing concerns over whether this ambition can be realised.






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