The start of 2025 has seen an unusually muted performance in London’s ultra-luxury property market, underscoring growing unease among the capital’s wealthiest residents amidst sweeping tax reforms. London recorded just 34 sales of properties valued above $10 million in the first quarter—approximately a third fewer than in the same period last year, according to the latest report from Knight Frank. This contrasts sharply with the global super-prime market, where transactions rose by 6% year-on-year, highlighting London’s specific challenges.

A major factor behind this slowdown is the UK government’s rigorous taxation crackdown on high earners and non-domiciled individuals—those who benefit from previously favourable tax exemptions on overseas income. The reforms, championed by Chancellor Rachel Reeves, aim to raise substantial revenue to support public services but have also provoked an exodus of wealthy individuals who find more favourable conditions elsewhere. Destinations such as Dubai, Italy, Switzerland, Paris, and Madrid have become increasingly attractive alternatives, offering lighter tax regimes and appealing lifestyles that undermine London’s historic allure as a global wealth hub.

According to Knight Frank’s UK research head Tom Bill, since the initial non-dom reforms introduced under the previous administration and expanded by Labour in late 2024, the government has already lost over £400 million in stamp duty from high-value property sales—a figure likely to be much higher in reality. The hardest-hit areas include London’s prestigious neighbourhoods such as Mayfair, Chelsea, St John’s Wood, and South Kensington. The Office for Budget Responsibility (OBR) has acknowledged these shifting dynamics, admitting that behavioural responses among the top earners to these tax changes are more uncertain and significant than previously forecast. Consequently, the reliance on a small and highly mobile wealthy minority to fund government spending poses a growing fiscal risk.

This complex picture is compounded by wider systemic uncertainties. An Oxford Economics survey cited by Reuters reveals that over 60% of non-domiciled individuals could leave the UK within two years, threatening to reduce the tax revenues government reforms hoped to capture. The OBR’s projection of a £3.5 billion net annual gain from 2026–2030 hinges on the assumption that only a modest 12% of non-doms depart, a figure many analysts now view as optimistic. Additionally, the Henley Private Wealth Migration Report warns of a record outflow of 16,500 high-net-worth individuals this year alone, representing $92 billion in investable assets, with wealthy clients increasingly contemplating domicile shifts in response to tax and pension reforms.

The cumulative effect of these trends has unsettled London’s property market and broader wealth management sectors. Wealth managers are concerned about ongoing asset losses and the difficulty of enticing new affluent clients amidst increasing competition from global wealth centres. Meanwhile, NatWest, a major banking institution, is closely watching these developments. CEO Paul Thwaite noted that ultra-wealthy clients remain sensitive to regulatory changes and that the bank’s strong recent financial performance coexists with this cautious sentiment. The bank is also wary of further tax hikes on financial institutions which could exacerbate market uncertainty.

Despite the turmoil, a silver lining emerges in London’s prime property market. Many high-net-worth individuals appear reluctant to sell outright, instead listing properties in lower price brackets as they assess their options. For instance, new sales instructions in prime central London during the first half of 2025 were 32% above the five-year average, albeit skewed towards lower price points. Lending institutions are also playing a supportive role, offering flexible mortgage conditions and helping buyers navigate this volatile market.

Globally, London’s prime property is regaining some appeal as a safe haven asset amidst economic instability, especially from U.S. and Middle Eastern buyers attracted by a weakened pound and comparative value relative to past peaks. However, this interest contrasts with the wealth migration challenge, underscoring the fragility of London’s position. The government’s narrative and policy stance will be critical in either consolidating or further eroding confidence among the globally mobile affluent cohort.

As successive governments have treated London’s wealthy minority as a reliable fiscal base, current realities illustrate the dangers of overreliance on a group that is globally minded and highly mobile. Rebuilding trust will require stable, measured policymaking and a coherent tone from policymakers. Without this, London risks losing its status as Europe’s foremost hub for private wealth to more accommodating international competitors.

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Source: Noah Wire Services