London flat prices fall at fastest rate since height of financial crisis

By the Editorial Team · Monday, October 26, 2026

Flat prices in inner London have dropped 8.1% over the past year, marking the fastest decline in 17 years and erasing over a decade of growth, with owners losing nearly £50,000 on average since mid-2025. This sharp downturn, driven by rising mortgage costs, higher stamp duties, and reduced buy-to-let investment, puts acute pressure on the market, especially in expensive boroughs like Westminster, while upcoming government support measures for first-time buyers aim to address affordability challenges.

Flat prices in inner London have fallen at their fastest rate in 17 years, with owners losing nearly £50,000 on average since mid-2025, according to recent data. Analysis of Land Registry figures shows that prices for flats across the capital’s 15 inner boroughs dropped 8.1% in the year to August, marking the steepest annual decline since 2009 and substantially outpacing the national average decrease of 1.6%.

The average sale price for an inner London flat was £522,200 in August, the lowest level recorded since 2015, effectively wiping out more than a decade of price growth. Buyers who acquired apartments at the market peak in September 2022 have seen values fall by approximately £71,935 over the last four years.

Several factors have combined to weigh heavily on the London flat market. Elevated mortgage interest rates, driven by economic pressures including the conflict in Iran and rising inflation, have significantly increased borrowing costs. The Bank of England reported that the average two-year fixed mortgage rate climbed from 3.98% in March to 4.69% by August, translating to an additional £960 annually on a typical £200,000 loan. These increased expenses disproportionately impact first-time and lower-income buyers, who are more likely to purchase flats than houses.

The introduction of higher stamp duty charges and reductions in buy-to-let tax relief have also contributed to the downturn. Since 2016, a stamp duty surcharge on additional properties has been in place, rising from three to five percentage points as of 2024. This surcharge, coupled with higher stamp duty bands in London since 2014, has led to substantially higher transaction costs. For instance, the typical stamp duty paid on an average inner London flat in August was £16,110 — nearly twelve times the £1,382 paid nationally for an average flat.

The flat market has been further affected by a decline in buy-to-let investment. Small-scale landlords have been selling properties following tax relief cuts and legislative changes, such as Labour’s Renters’ Rights Bill that eliminated no-fault evictions.

The impact of these trends is most pronounced in some of the capital’s most expensive areas. In the City of Westminster, flat prices fell 15% year-on-year in August, more than double the rate seen during the 2009 financial crisis. This highlights the acute pressure on London's housing market, particularly in locations where prices have long exceeded local income levels.

In contrast to London, UK house prices overall saw a modest increase of 0.9% to an average of £273,000 for the year leading up to August, according to Office for National Statistics figures. However, these headline numbers obscure significant regional disparities and differences between property types.

Recent announcements by Labour mayor Andy Burnham indicate plans for a new Help to Buy-style scheme aimed at assisting first-time buyers with new-build homes in the capital, with further details expected in the upcoming Budget. Whether such measures will counteract the steep price declines in the London flat market remains to be seen.

This article was reported by synthesizing coverage from multiple independent news outlets to present a balanced, unbiased account. Read about our editorial standards. Spotted an error? Let us know.