
UK House Price Index August 2026: what London buyers, owners and executors need to know
London prices fell 2.2% in the year to August 2026 while the UK rose 0.9%. What it means for buyers, landlords and probate, CGT and divorce valuations.
Local coverage
Mixed Victorian, Edwardian, and interwar stock across Lambeth, Croydon, Sutton, and Merton.
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About the area
South London covers Lambeth, Croydon, Sutton, and Merton. The inner section (Brixton, Clapham, Stockwell) is dominated by Victorian terraces and Georgian/Victorian villas, while the outer areas transition to interwar and postwar semi-detached housing. Croydon has seen significant high-rise development over the last decade, with mixed results.
Boroughs covered
Postcodes
SW2 · SW4 · SW8 · SW9 · SW12 · SW16 · SW17 · SW19 · SW20 · SE11 · SE24 · SE27 · CR0 · CR2 · CR3 · CR4 · CR5 · CR6 · CR7 · CR8 · SM1 · SM2 · SM3 · SM4 · SM5 · SM6 · SM7
Housing stock
Victorian terraces and villas in Brixton, Clapham, Stockwell, Tulse Hill, and Balham. Edwardian semi-detached housing across Streatham and Tooting. 1930s suburban stock in outer Merton, Sutton, and southern Croydon. Extensive post-war council estates across Lambeth. Modern high-rise and conversion developments in central Croydon.
Market context
Inner South London (Brixton, Clapham, Stockwell, Tooting) grew consistently for a decade on Zone 2 transport links and a strong rental market, and has eased modestly since 2025 with flats leading the softening. Croydon's regeneration has been uneven, with some high-rise schemes underperforming. Wimbledon and Merton Park remain premium family-home markets.
Market data
South London spans a wide value range, from premium Victorian stock in Clapham and Brixton through to more affordable family housing in Croydon and Sutton, and the split between the two has widened. In the year to July 2026 Lambeth fell 6.3% to about £537,000, with terraced houses down around 4% and flats carrying most of the fall, while Merton held broadly steady at around £616,000, down under 1%. In the outer boroughs Sutton was flat at about £453,000 and Croydon slipped 3.4% to about £390,000, still the lowest average of any borough we cover south of the river and a clear value play for family houses. Buyers across the area have more negotiating power than in recent years, particularly on flats and on homes that have lingered on the market, where overpricing has been common. (Figures from the UK House Price Index, HM Land Registry and ONS, July 2026 data published September 2026; local figures are provisional and subject to revision.)
Data: July 2026 (UK House Price Index, published 16 September 2026) · refreshed October 2026 · reviewed quarterly
What we often find
Rear extension issues, particularly in Victorian terraces with original outrigger structures
Damp penetration through original single-skin walls in Edwardian stock
Cladding concerns in post-2000 Croydon high-rises
Subsidence risk in clay soil across Sutton and southern Croydon
Lath-and-plaster ceilings requiring assessment in pre-1920s stock
Neighbourhoods
From the field

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