A True Global City at Half Price: Why Tokyo Per Square Metre Is the Last Mispricing

TL;DR: On a prime price-per-square-metre basis, Tokyo trades at roughly half of London and well below New York, Singapore, and Hong Kong, even though it is the largest metropolitan economy on earth with deep liquidity and clean, rule-of-law title. The market has stopped ignoring this: Knight Frank clocked Tokyo prime values up roughly 55 to 58 percent in a single year, the top performer worldwide. For a buyer comparing global cities on what a dollar actually buys in floor space, Tokyo is the standout repricing already in motion.

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The number that should stop you cold

Set Azabu in Minato-ku, central Tokyo, as the benchmark at 100. On a comparable prime per-square-metre basis, London sits around 207.5, New York around 144.6, and Singapore around 140.2 (directional, as of writing). Read that again. The same quality of address, the same tier of building, costs roughly double in London for every square metre you take home.

This is not a story about a cheap, obscure market in a fragile country. It is a story about one of the three or four genuine global cities on the planet priced as if it were a tier below. Tokyo has the safety, the infrastructure, the depth, and the legal certainty of London or New York. It just has not been priced like them.

Put it in money terms and it gets sharper. Roughly one million US dollars buys you about 64 square metres of prime Tokyo floor space (directional, as of writing). The same million buys you about half that in Singapore, and a fraction of it in Hong Kong, where prime exceeds roughly 30,000 US dollars per square metre, the most expensive residential real estate in the world. Same money. Double the home. That is the entire thesis in one line.

One honest caveat: per-square-metre comparisons across cities are never perfectly clean. Definitions of prime, measurement of floor area, and the exact mix of buildings differ between markets. Treat these figures as directional, not as a spreadsheet you would underwrite a purchase on. The gap is real and large; the second decimal place is not the point.

From the desk — When I tour overseas buyers through a prime Minato unit and they convert the price back to their home currency, the same reaction keeps repeating: a long pause, then ‘that’s it?’ The buyers most familiar with London and New York are consistently the ones who freeze the longest, because they recognize exactly what they would be paying double for at home.

Why a true global city was mispriced for so long

If Tokyo is this good and this cheap, the obvious question is why. The answer is mostly about the last thirty years, not the next ten.

After the 1980s bubble burst, Japanese property spent a generation going sideways or down. A whole cohort of global investors filed Tokyo under “value trap” and stopped looking. Meanwhile London, New York, Hong Kong, and Singapore compounded through two decades of cheap money and trophy-asset demand, pulling their per-square-metre prices far ahead. The gap you see today is the accumulated result of Tokyo sitting out a party everyone else attended.

Layer on the yen. A weak yen makes Tokyo dramatically cheaper for anyone earning or holding US dollars, Singapore dollars, or Hong Kong dollars. Part of the floor-space-per-dollar discount is genuine value, and part of it is a currency dislocation. The honest read: the FX piece may not last forever, which is precisely why it is an argument to look now rather than later. If the yen normalises, the dollar-denominated entry point you see today simply disappears.

The repricing has already started

Here is what separates this from the usual “undervalued, someday” pitch: the market has already begun to close the gap, and the move is large.

Knight Frank’s 2025 Wealth Report put prime Tokyo new-build apartment values up 58.5 percent, and up 55.9 percent over the twelve months to the third quarter, making Tokyo the world’s top prime residential performer. That is not a rounding error. That is a market repricing in real time.

For context, global luxury residential prices rose just 3.2 percent across 2025, with 73 of 100 tracked markets posting gains. Tokyo’s surge is a multiple of the global average, more than fifteen times it. When one major city moves that far ahead of the pack from a low base, the most plausible explanation is catch-up: capital recognising a mispricing and correcting it, not a speculative blow-off in an already-expensive market.

The honest caveat here matters too. A 55-plus percent annual move is fast, and nothing rises in a straight line. Expect the pace to cool. But the direction of travel, narrowing the gap to London and New York, is the structural story, and structural stories take years, not quarters, to play out.

Scale and liquidity the “expensive” cities cannot match

Price is only half the case. The other half is what backs the price.

Greater Tokyo is home to roughly 37 million people, the largest urban economy in the world. That is not a number you collect for trivia. It is the foundation of two things buyers should care about most: rental depth and exit liquidity.

Rental depth means tenants. A metro of 37 million generates relentless, broad-based demand for housing across every price point, which is what makes Tokyo yields hold up while occupancy stays high. Smaller “expensive” cities like Singapore (around six million) or Hong Kong (around seven and a half million) simply cannot offer the same breadth of tenant base or the same diversity of demand.

Exit liquidity means buyers when you sell. A deep, transparent market with clean title and a functioning registry is one you can actually get out of, in normal conditions, without a fire sale. That combination, world-city scale plus rule-of-law certainty plus a discounted entry price, is genuinely rare. Most cities give you one or two of those. Tokyo, right now, gives you all three.

What this means for a buyer comparing cities

If you are weighing global cities on what your capital actually buys, the comparison is not close on the metric that compounds: floor space per dollar.

You are not choosing Tokyo over London because Tokyo is a gamble that might pay off. You are choosing it because it delivers the same global-city profile, safety, liquidity, infrastructure, legal certainty, at roughly half the per-square-metre cost, in a market that has already started to reprice toward its peers. The downside is not “what if nobody ever notices.” Knight Frank shows they are noticing. The risk you are managing is timing and currency, not whether the value is real.

A grounded caveat to keep you honest: a discount closing is, by definition, a discount shrinking. Every quarter Tokyo reprices toward London is a quarter the cheap entry point gets less cheap. The asymmetry that exists today, world-city quality at a regional-city price, is a window, not a permanent fixture.

How to act on it

Turn the thesis into a decision in three concrete steps.

First, anchor on the metric that matters. Run your shortlist of cities on price per square metre, not headline ticket price, and convert into your home currency. Our city-by-city breakdown at /compare lets you see the floor-space-per-dollar gap directly instead of taking it on faith.

Second, pick where in Tokyo the gap is widest for your goal. Central prime wards like Minato carry the trophy comparison to London and New York, but the value case extends well beyond them. Use /wards to match a district to your priority, whether that is yield, capital growth, or rental depth, and /tools to pressure-test the actual numbers on a specific building.

Third, get fluent before you bid. A handful of local terms, reikin (a non-refundable “key money” gift to the landlord), shikikin (a refundable deposit), and the registry mechanics that give you clean title, are worth understanding before you sign. The plain-English /glossary covers them in minutes.

The mispricing is real, it is large, and the data shows it is already correcting. Buyers who anchor on per-square-metre value, rather than headline price, are the ones positioned to capture the gap before it closes. Start with the comparison, narrow to a ward, and move while a true global city is still trading at half price.