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A recovery derailed: how geopolitics reshaped the 2026 development outlook

Entering 2026, the mood across UK residential development was cautiously optimistic. The Bank of England had cut its base rate to 3.75% in December 2025, average mortgage rates were drifting towards 4%, and the major forecasters — Nationwide, Hamptons, Rightmove — were calling for modest but positive house price growth of between 2% and 4% through the year.

Then came the shock.

The escalation of conflict in the Middle East at the end of February 2026 triggered an immediate repricing of risk across global markets. Oil prices surged from around $70 to over $110 per barrel, inflation — which had already been sticky at 3.3% in March — looked set to remain well above the Bank of England's 2% target, and the rate-cutting cycle that developers had been counting on was effectively put on ice. The Bank has since held the base rate at 3.75% at every subsequent meeting, including 18 June 2026, with markets now divided over whether a hike, rather than a cut, comes next.

For the UK housing market, the implications have been swift and severe. What began as a macro shock quickly became a residential crisis of confidence — and for developers trying to bring schemes forward, the viability arithmetic has shifted sharply for the worse.

What RICS data tells us about the collapse in buyer sentiment

The most immediate gauge of the damage comes from the Royal Institution of Chartered Surveyors. Its March 2026 UK Residential Market Survey recorded new buyer enquiries falling to a net balance of -39%, down from -29% in February — the weakest reading since August 2023. Near-term price expectations collapsed to a net balance of -43% from -19%, again the lowest in almost three years. Short-term sales expectations registered -32%, while the 12-month sales outlook slipped into negative territory at -6%, marking a stark reversal from the broadly positive trajectory that had characterised the second half of 2025.

The April 2026 survey confirmed the trend was not a one-month blip. A subdued housing market with higher mortgage rates and wider geopolitical uncertainty continued to weigh on activity.

Tarrant Parsons, RICS head of market research and analytics, put it plainly: "What had been a cautiously improving picture for activity has been knocked off course by the wider macro fallout from the Middle East conflict, as the renewed deterioration in the mortgage rate outlook has proved particularly challenging. Indeed, with average fixed rates climbing back above 5% according to some sources, it is unsurprising that buyer demand has softened."

Tom Bill, head of UK residential research at Knight Frank, noted that demand had been recovering after the uncertainty caused by the November 2025 Budget, but the conflict changed the calculus: "People will still need to move but geopolitical instability will increase the mood of hesitation while rising mortgage rates due to energy price spikes will curb spending power."

Average five-year fixed rates at 75% LTV sat at 4.96% as of late March, with some two-year products creeping back above 5%. The Bank of England's own Financial Stability Committee warned in April that approximately 1.3 million additional UK households now face a jump in mortgage payments by the end of 2028 as a result of the war — bringing the total exposed to 5.2 million, up from the 3.9 million forecast before the conflict began.

For developers assessing whether buyers will be there at completion, these are not abstract statistics. They are the central assumption on which every sales programme and scheme cashflow depends.

Housebuilders pull back: starts, targets and land spending revised down

The sentiment data has translated directly into on-the-ground delivery slowdowns. The National House Building Council reported UK new home registrations were down 6% in Q1 2026 compared with the same period in 2025, despite the government's stated target of 1.5 million homes across this parliament. Savills' English Housing Supply analysis for Q1 2026 pointed to just 204,500 completions in the 12 months to March — a rise of only 1% year-on-year and far short of what the government needs.

Planning applications submitted across England fell 10% in Q1 2026 compared to the same period in 2025, according to government statistics. Decisions on major applications fell 23% year-on-year and are now 48% lower than a decade ago.

The big listed housebuilders have been vocal about their revised caution. Crest Nicholson cut its sales forecast for the year to October 2026 from around 1,700 units to a maximum of 1,500, while simultaneously raising its anticipated net debt position. Its chief executive was unambiguous: "It is increasingly clear that the current macroeconomic uncertainty is contributing to the prospect of a more prolonged higher-interest-rate environment, renewed cost pressures and a deterioration in consumer confidence."

Elsewhere, at least one major volume builder reduced its plot purchasing guidance for the 2026 financial year significantly — a clear signal that land spending is being rationed until there is greater visibility on mortgage costs and buyer absorption rates.

The Development Index 2026, drawing on insight from senior figures across developers, housebuilders, REITs and asset managers, painted an equally stark picture: almost all industry leaders surveyed reported "low" or "very low" confidence entering 2026. Development finance remained available but increasingly selective and expensive, with typical borrowing costs ranging from 7% to 12% per annum — a spread that makes marginal schemes genuinely unviable rather than merely difficult.

REalyse data reflecting planning pipeline activity across England and Wales supports this picture. In many districts outside the South East, schemes that achieved consent in 2024 are now sitting without a confirmed start date, as developers wait for either a clearer rate path or an improvement in comparable sales evidence before committing procurement.

Build-to-rent hit hardest — and London's pipeline is approaching gridlock

If the market-sale sector is struggling, the build-to-rent sector is in outright contraction. UK BTR starts fell 65% in the 12 months to Q1 2026, dropping from 16,054 units in the prior year to just 5,619, according to data published by the British Property Federation. In London, the contraction was even sharper: starts fell from 3,153 to just 1,048, while the number of units under construction in the capital dropped 29% over the same period.

These are not projects that have been cancelled — they are projects that have been deferred indefinitely, trapped between rising construction costs (tender prices forecast to rise around 3% during 2026 according to LendInvest), expensive debt, and a buyer or renter market that cannot yet underwrite the rents or sale prices schemes require to stack.

London's wider residential pipeline has reached an almost paradoxical state. Molior data cited in recent industry reporting identifies 893 planning permissions for unbuilt residential schemes in the capital. In the last 12 months, construction started on just 73 of them. Tim Craine, Molior's founder, summarised the position bluntly: "More than 90% of permissions just aren't going anywhere."

In Q1 2026, just 6,325 private sector homes broke ground across the entire capital — a figure that, annualised, represents a fraction of what the government's London housing target requires. Based on current trajectory, Molior expects just 14,053 homes to complete across 2027 and 2028 combined, against a two-year government target of 176,000.

This is not a planning problem in isolation. It is a demand-confidence and delivery-viability problem, and external shocks — whether geopolitical or monetary — are the variable that the planning system cannot absorb.

What this means for land deals and scheme appraisals in 2026

For developers still appraising sites and structuring land deals, the current environment demands a more granular and stress-tested approach to assumptions than was required even six months ago.

The key inputs are all moving simultaneously and in unhelpful directions. Mortgage rates are higher than anticipated, suppressing the pool of qualifying buyers and the pace of sales absorption. Construction cost inflation remains positive, with AECOM forecasting around 3% for 2026. Development finance is more expensive and less readily available. And house price growth — which the Land Registry placed at 3.8% year-on-year to April 2026 at the national level, and which Zoopla puts at £271,900 on average — is increasingly concentrated in more affordable northern markets rather than the higher-value schemes where development appraisals have historically been most ambitious.

From a residual land value perspective, the combination of compressed GDV assumptions (given weaker sales forecasts across southern England and London specifically, where Savills is forecasting 0% growth for the capital) with higher build costs and debt costs has materially reduced the price that most developers can reasonably pay for land. Landowners who priced sites on the assumptions of early 2025 or late 2024 are finding that those numbers no longer work for buyers — creating a widening bid-ask spread that is stalling land market activity.

REalyse data across comparable schemes in districts where development appraisals are actively being run shows that blended £/sqft values for new-build flats in several London postcodes have softened relative to Q4 2025, while the gap between asking and achieved prices on existing stock — a leading indicator of GDV risk — has widened in key areas including parts of inner south London and outer east London.

Conclusion: confidence needs more than policy

The Government's planning reforms — the revised NPPF, expanded mayoral call-in powers, the new National Housing Bank — are meaningful structural interventions. But structure cannot substitute for confidence, and confidence right now is being driven by factors well outside any planning minister's control.

Until the mortgage rate outlook stabilises, buyers will hesitate. Until buyers commit, developers will not start. Until developers start, land markets will remain frozen at prices landowners are unwilling to accept. This sequence is well understood by anyone who has worked through a previous cycle, but it is no less frustrating for that.

The path forward requires patience, precision, and data rigour. Developers who continue to appraise sites actively — stress-testing GDV assumptions against current comparable evidence rather than peak-cycle benchmarks, modelling absorption at realistic sales rates given current mortgage availability, and identifying districts where supply and demand dynamics remain genuinely supportive — will be best positioned to move quickly when sentiment turns.

The conflict may ease. Swap rates may fall. The Bank of England may resume cutting. When conditions shift, they can shift quickly — and the developers with the sharpest picture of where viability still exists will capture the opportunity first.