The Non-Dom Exodus: What It Means for Prime London in 2026

Prime Central London terraces at golden hour.

Beauchamp Estates puts a specific number on a trend most of the market has only described in general terms. In its year-end 2025 Billionaire Buyers in London survey, the agency found that 65% of super-prime vendors selling their principal London residence in 2025 were non-doms relocating to lower-tax jurisdictions — predominantly Dubai, Abu Dhabi, Milan, Tuscany, Monaco and Geneva. That is not a niche data point. It is the single biggest structural force shaping the top of the Prime Central London market this year.

This piece sets out what changed, who is leaving, where they are going, and — the part most coverage misses — what has happened to demand since.

What actually changed in April 2025

From 6 April 2025, the UK replaced its long-standing non-domiciled tax regime with a residence-based system. The old regime allowed non-doms to shield foreign income and gains from UK tax more or less indefinitely, provided they paid the remittance basis charge. The new regime introduces a four-year foreign income and gains window for qualifying new UK residents who have not been tax resident in the previous ten years — after which worldwide income and gains fall inside the UK tax net in the same way as for any other resident.

For a non-dom who has been in the UK for years and built a portfolio of international income and assets, that is a materially different proposition to the one they arrived under. It is this shift, more than any single tax rate, that has driven the exodus.

The scale of the move

Savills recorded a 4.8% fall across Prime Central London in 2025, with values now 24.5% below the 2014 peak — a five-year correction that has been in its late stages through the first half of 2026. Knight Frank has read the market as two-speed: resilient demand for build-complete homes, continued pressure on off-plan stock.

• Why you might see a different figure (70%) elsewhere Beauchamp Estates' mid-year 2025 survey put the figure closer to 70%. The difference likely reflects the shift from a six-month to a full-year sample rather than a change in the underlying trend — but both numbers are in circulation, so it's worth knowing which one a source is quoting.

The Dubai leg of that migration has its own data points. Sotheby's Dubai has reportedly booked £600 million in transactions from UK expats, and more broadly, over 6,500 millionaires are projected to relocate to Dubai in 2026 — not all from the UK, but London is understood to be one of the largest single contributors to that flow.

Demand has since rebounded sharply

This is the part of the story that dates fastest, and it matters. By the first half of 2026, Beauchamp Estates recorded £1.24 billion in super-prime sales (34 deals) above £15 million — a 79% rise in sales value compared with £694 million (27 deals) in the same period a year earlier. The agency attributes much of that jump to a fresh wave of Middle Eastern and American buyers, partly driven by capital moving out of the Gulf amid regional instability.

Read alongside the vendor picture, the two data sets tell a single, coherent story rather than a contradiction: non-doms have been selling and leaving in large numbers, and a different, more international buyer base has been moving in behind them fast enough that overall transaction values have not just recovered but significantly exceeded prior-year levels.

Who is buying the gap

Middle Eastern and Turkish buyers are now understood to be the largest cohort purchasing above £15 million — roughly one in three transactions at that level, with American and Gulf buyers together accounting for over half of all £15 million-plus sales in H1 2026. These are, broadly, value-driven buyers in the specific sense that they are buying into a market that has corrected substantially from its 2014 peak, not buyers chasing momentum.

For agents, that has practical implications. A vendor profile built around long-resident non-doms with UK-based advisers is being replaced by a buyer profile that is more international, often faster-moving, and frequently less familiar with the specifics of the UK purchasing process — which changes what due diligence, financing and legal support actually need to look like on a transaction.

The postcode picture

The exodus is not evenly distributed.

Knightsbridge and Belgravia remain price-corrective, while Mayfair has been the relative outperformer even through the correction.

That divergence matters for how the non-dom story should actually be read. It is not "Prime London is being sold off." It is that specific postcodes are absorbing specific vendor and buyer behaviour differently, and Mayfair's relative strength through the same period suggests the incoming buyer base is not simply retreating — it is being selective about where it commits.

What this means for agents

• Vendor conversations need a different starting point A non-dom vendor selling a principal residence is very often not selling because of price — they are selling because their tax position changed. That changes what "motivated seller" actually looks like, and how a listing should be positioned.
• The buyer recovery is real, but it favours turn-key stock Beauchamp's H1 2026 data points to buyers prioritising fully finished, move-in-ready homes over redevelopment projects. Vendors and agents sitting on properties requiring significant refurbishment should factor that preference into pricing and positioning, not assume the broader rebound lifts every listing equally.
• Cross-capital fluency is now a genuine differentiator With significant capital moving between London and Dubai in both directions, agents who can speak credibly to both markets — not just refer clients elsewhere — are positioned differently than those who can't. Our own comparison of London and Dubai for HNW buyers and the wider London-to-Dubai capital flow go into this in more depth.

None of this should be read as a reason to treat the London market as declining — if anything, the H1 2026 sales figures argue the opposite. It is a reason to be precise about who you are actually selling to and buying from right now, rather than working from a client profile or a headline that describes early-to-mid 2025, not the market as it stands today.

Frequently Asked Questions

Common questions about the non-dom exodus and what it means for Prime London.

• What is the non-dom exodus in Prime London? It refers to the wave of non-domiciled residents selling their UK principal residences and relocating abroad, largely driven by the UK's April 2025 replacement of the non-dom tax regime with a residence-based system. Beauchamp Estates' year-end 2025 survey found that 65% of super-prime vendors fit this profile.
• Where are non-doms relocating to? Beauchamp Estates identifies Dubai, Abu Dhabi, Milan, Tuscany, Monaco and Geneva as the primary destinations, with Dubai attracting a particularly large share.
• Has the non-dom exodus reduced demand for Prime London property? No — demand has since rebounded strongly. Beauchamp Estates recorded a 79% rise in super-prime sales value in H1 2026 compared with H1 2025, driven largely by Middle Eastern and American buyers. The buyer base has changed in composition more than it has shrunk.
• Which postcodes are most affected? Knightsbridge and Belgravia remain price-corrective, while Mayfair has outperformed, up 5.6–5.9% year on year, suggesting the effect is uneven across Prime Central London rather than uniform.

Sources: Savills, Knight Frank, Beauchamp Estates (Billionaire Buyers in London, year-end 2025 and H1 2026 surveys).

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