The top end of the London property market — once buoyed by international capital and non-domiciled buyers — is undergoing a sharp slowdown. New figures reveal that prime London sales fell by 35.8% in May, with lettings activity also dropping significantly. The decline coincides with a tightening political narrative around inheritance tax (IHT) reform and the phasing out of non-dom tax status, expected under a future Labour government.
At a time when global wealth mobility is rising, the UK’s high-end market — particularly in postcodes like W1, SW1, and NW8 — is showing signs of stagnation. Combined with shifting global tax havens and lifestyle migrations, the result is a rare pause in what was once a near bulletproof segment of the UK property landscape.
The Inheritance Tax Shift: What’s Changed?
Traditionally, non-doms (non-UK domiciled individuals) had significant tax advantages when buying or passing on UK assets — particularly London real estate. However, recent announcements have shaken investor confidence.
Key reforms include:
- Abolition of long-term non-dom status under Labour’s fiscal proposals
- Application of 40% inheritance tax on UK real estate, regardless of domicile
- Potential retroactive tax exposure on trusts and holding structures
- Growing scrutiny of offshore vehicles used to buy London homes
Although these changes are not yet fully legislated, their expected implementation has already sent a clear signal to high-net-worth individuals: UK property may no longer be tax-efficient.
Prime Market Performance: Sales and Lettings Slump
According to recent market data:
- Sales transactions in prime central London fell 35.8% in May
- Lettings activity was down 21.7% year-on-year, with a drop in international corporate relocations
- Average rents rose just 3.3%, despite annualised rent inflation previously peaking above 15%
- Prime London rents remain 32.9% above 2017–2019 averages, suggesting limited further upside
The sharp drop in buyer activity indicates a lack of urgency among affluent international investors. With inheritance tax house value thresholds now front of mind, many are choosing to pause or reallocate capital to jurisdictions with more favourable estate planning rules.
Who Is Leaving — and Where Are They Going?
Tax planning firms and wealth managers report that many non-doms are relocating or restructuring assets. Popular alternatives include:
- Italy’s flat tax regime, offering €100k annual tax on worldwide income
- The UAE, with 0% personal tax and growing luxury property stock
- Singapore and Monaco, both long-time destinations for global high-net-worth individuals
- Portugal (though recent tax benefits for expats have been reduced)
While these destinations appeal to traditional non-dom profiles, London is still seeing new entrants — especially from the United States. There’s growing anecdotal evidence of Americans moving to London, driven by cultural affinity, international schooling, and business ties.
Demographic Shift: The Rise of the 'Global Professional'
One major evolution in the prime buyer profile is the rise of younger, global professionals who are not motivated solely by tax mitigation. Many are entrepreneurs, fintech executives, or creatives relocating for business or lifestyle.
These buyers may still purchase £2–£5 million homes, but they tend to live in the property, hold for shorter cycles, and are more sensitive to macro trends like currency rates, political stability, and mortgage affordability.
As such, while the classic “non-dom investor” base may shrink, a new, more diversified audience is emerging — albeit with different expectations and risk profiles.