London house prices fell 3.9% year-on-year in April 2026 — 6.9% in real terms after inflation — even as the wider UK housing market continued to post modest gains. The latest ONS House Price Index data, combined with Zoopla’s April market report, paints a picture of a capital decoupling from the rest of the country, hit harder than anywhere by the higher mortgage rates that the Iran conflict has sustained.
The numbers behind the divergence
The average London house price now stands at £553,258 — still 104% above the UK average of £271,188, but markedly below the capital’s 2022 peak. Across the rest of Britain, by contrast, headline UK house price inflation held steady at 1.3%, supported by sales activity in northern regions. Zoopla data shows the strongest annual gains in Northern Ireland (+6.7%), the North East (+3.2%) and the North West (+3.1%). Every UK city tracking annual price growth above 3% sits in the North of England.
Within London, the decline has not been uniform. According to Hamptons research, in 2025 fully 14.8% of Londoners sold their property for less than they paid — the highest sub-par sales rate of any UK region, and a striking statistic in a market historically associated with capital appreciation. Aneisha Beveridge, head of research at Hamptons, has commented that London house price growth is “no longer the one-way bet it once seemed”, noting that even owners who bought a decade ago can now find themselves underwater.
Time to sell: the early-warning indicator
The most arresting data point comes from Zoopla’s “time to sell” metric. South East London homes are now taking 43 days to find a buyer — up 34% on the same period last year. East London is up 29% to 36 days. Uxbridge and Bromley are both up around 7 days. Beyond the M25 boundary, the pattern continues: Dartford up 28% to 37 days; Slough up 18% to 46 days.
The pattern points clearly to a buyer-side affordability shock. With the average two-year fixed mortgage rate at 5.42% — up from 4.25% before the Iran war began in late February — first-time buyers and movers in the £500,000+ price bracket where London concentrates have seen monthly mortgage costs rise by around £235 on a typical new loan. In a market where median earnings buy a property requiring 11.7 gross annual salaries, the marginal mortgage cost matters disproportionately.
Where prices are still moving up
Even within the capital, three locations stand out as Zoopla’s picks for likely 2026 upswing: Sutton, Uxbridge and Ilford. All three share a common profile — outer-London family-oriented housing stock, good transport links, asking prices well below the £553,000 borough average, and demographic momentum. Faisal Choudhry, director of research at Savills, notes that the 2025 Autumn Budget delivered a “better-than-feared” outcome for top-end buyers, with the new mansion tax effective from 2028 unlikely to materially impact the upper market this year.
The rental market tells a different story. Average London monthly private rent reached £2,280 in March 2026 — the highest of any UK region. Kensington and Chelsea averages £3,599. But annual rent inflation in London has moderated sharply to 1.7%, the lowest of any English region, suggesting that the affordability ceiling has finally been reached for many tenants.
The supply puzzle
The deeper structural problem is supply. According to Bank of England data, mortgage approvals for house purchases in March 2026 totalled 63,531 — down 1% on March 2025 and 23% below the long-run average. The number of homes for sale is at its highest April level for over a decade, but the number of buyers able to proceed has not kept pace.
The Renters’ Rights Act, which came into effect on 1 May 2026, has prompted a wave of landlord exits. According to Knight Frank’s head of UK residential research Tom Bill, the Act combined with the hike to property income tax rates is pushing more buy-to-let investors to dispose of London assets. In the short term, this adds supply and depresses prices; in the medium term, it likely tightens the rental market further.
The international angle
One bright spot is sustained interest from Gulf wealth. According to AlRayan Bank’s Gulf Cooperation Council Investment Barometer, surveying 150 high-net-worth individuals from Saudi Arabia, Qatar and the UAE with a minimum £10 million in wealth, 29% are currently invested in London property — making the capital the number-one international city for wealthy Gulf investors. The dollar-pound exchange rate, Brexit-era tax changes notwithstanding, has restored some of London’s discount appeal for international buyers.
For domestic buyers and movers, the picture remains harder. Zoopla’s outlook for 2026 forecasts UK price growth of around 1-2%, with London expected to underperform the national average for the third consecutive year. The capital’s repricing — overdue, by some measures — is now happening in a window the Bank of England’s monetary stance shows no sign of widening.
— Thomas Hargreaves, London Capital Post
