UK House Price Growth Slows to 2.7% as SDLT Base Effect Bites

UK House Price Growth Moderates to 2.7% in Latest ONS Data

Annual house price growth across the UK has slowed to 2.7% in May 2026, with the average property now valued at £271,000, according to fresh figures from the Office for National Statistics (ONS). The deceleration marks a notable shift from April's 3.9% annual growth rate, reflecting what analysts attribute to a base effect following last year's changes to Stamp Duty Land Tax (SDLT) in England and Northern Ireland.

Month-on-month, the picture is equally subdued. Properties increased in value by just 0.3% between April and May 2026, a significant weakening compared with the 1.5% rise recorded over the same period in 2025. This slower momentum suggests the market is entering a more measured phase after the activity spike that followed the SDLT reforms.

England Lags as Regional Disparities Widen

England's housing market has been particularly affected by the slowdown. Average property prices in England reached £292,000 in May, representing annual growth of just 2.3% (£6,000)—a marked deceleration from the 4% recorded in April. For buy-to-let investors and homebuyers tracking BTL hotspot analysis, the weaker growth in England's primary market warrants careful consideration when evaluating regional investment opportunities.

Across England's regions, the North East has maintained the strongest growth momentum, though even this has moderated considerably. Annual price inflation in the North East slowed to 5.9% in May, down from 9.7% in April—a sharp pullback that underscores the broader deceleration. London, by contrast, continues to struggle. The capital recorded its ninth consecutive month of annual price declines, with average house prices falling 3.7% year-on-year to May. Inner London has been particularly hard hit, with prices dropping 5.9%, and notable falls reported in Westminster and Tower Hamlets.

Devolved Nations Outpace England

While England's growth has softened, the devolved nations are presenting a more robust picture. Wales recorded average house prices of £215,000 in May, up 4.2% annually—notably outpacing England. Scotland showed similarly resilient momentum, with average prices reaching £196,000 and annual growth of 4.4%.

Northern Ireland continues to lead the UK, with average prices of £198,000 in the first quarter of 2026, representing annual growth of 7.4%. The strongest growth among the UK nations suggests that investors monitoring emerging opportunities may find merit in closer analysis of these markets, particularly where planning alert tools can flag developments early.

What the Data Means for Investors

The slowdown to 2.7% annual growth reflects normalisation following the surge in activity triggered by SDLT changes a year ago. This base effect—where comparisons are made against a period of heightened activity—has masked what remains a modestly positive market. However, the divergence between regions is becoming increasingly pronounced, with London's sustained downturn contrasting sharply with growth in other parts of the country.

For property investors and homebuyers, the data underscores the importance of regional specificity. Whilst the UK headline figure suggests modest but steady price appreciation, the reality on the ground varies dramatically. Those seeking below-market-value deals or evaluating long-term investment potential may find greater opportunity outside London and in regions where growth momentum remains firmer, particularly in Scotland, Wales, and Northern Ireland.

The coming months will be critical in determining whether the slowdown continues or stabilises, and whether London's persistent weakness is cyclical or signals a more structural shift in the capital's property market.

Source: Property Industry Eye.