Longevity real estate is an $876 billion bet that health is decided on the top floor.
The number comes from the Global Wellness Institute: wellness real estate reached $876 billion in 2025, growing 23.6 percent a year since 2019, on its way to $1.8 trillion by 2030. Longevity clinics sell memberships from $10,000 to $150,000 a year, and real estate has started packaging them. Clinic-anchored resorts. Branded healthspan towers. Biomarkers as an amenity, the diagnostics suite where the spa used to be.
I understand the appeal. Health is the last luxury that cannot be fully bought, which makes it the most interesting thing to sell. And I think the entire category, as currently built, is aimed at the wrong floor.
Where the years actually live
Start with the numbers nobody sells.
Between the poorest and richest neighbourhoods of Amsterdam, the difference in years lived in good health is 13.3. Not years of life. Years of health. Thirteen years in which one resident cycles to work and another manages conditions. That gap does not appear in any brochure, because nobody is paid when it closes.
Underneath it sits a quieter number. Of the people who see their neighbours less than monthly, 17.9 percent are severely lonely. Of the people who see them at least weekly, 6.8. That is association, not proven cause, and I will keep saying so. But every serious review puts loneliness and isolation in the same mortality risk category as smoking, and the longest-running study of adult life ever conducted keeps arriving at the same conclusion: relationships keep people healthy. More than cholesterol. More than class.
Then the finding that should reorganise how our sector thinks. The best Dutch study on this question followed 146,629 people and tested whether fast food density explains the neighbourhood health gap. It does not. The comfortable villain falls away, and what remains is harder and more structural: daily life is sorted by address. Who you see, how you move, whether the street invites you out or keeps you in. The ground floor does not cause the gap by itself. It is where the gap is lived, every day, by everyone on the wrong side of it.
The industry keeps bad books
The longevity business has a founding myth: the blue zones, those famous regions where people supposedly live past a hundred on sunshine, beans and community. An entire aesthetic of longevity marketing rests on them.
In 2024 a UCL demographer named Saul Justin Newman won an Ig Nobel prize for reading the source data. The supercentenarian records that made those regions famous track missing birth certificates and pension fraud more closely than they track diet. In his words, the data on extreme human ageing is rotten from the inside out. The regions sold as longevity’s proof turn out, in part, to be places where the paperwork failed.
Note what survives the audit. Not the miracle diets and not the hundred-and-tenth birthdays. What survives, in every honest dataset, is boring: people who move through their day, know their neighbours, and have a reason to get up. Things with no price, no brand, and no membership tier. Things a building either makes easy or makes rare.
The industry that promises time keeps bad books. The ground floor keeps the real ones: 13.3 healthy years between the right address and the wrong one, and it never sends an invoice.
Ageing lost its address
I have written before about how ageing lost its destination. I grew up in the south of the Netherlands; my mother worked as a caregiver in a nursing home, and for my grandparents’ generation the route was clear. At a certain age, you moved. There were caregivers, shared dining rooms, scheduled days. It was a system, and it made sense at the time.
We dismantled that system and told people to age at home, without redesigning the homes, the buildings or the streets they would age in. We removed the destination without redesigning the journey.
Longevity real estate is the market’s answer: a new destination, at the top of the market, for the few who can pay for it. The journey, meanwhile, still runs through the same lobby, the same dead plinth, the same street. For almost everyone, the building they already live in is the only longevity infrastructure they will ever have.
Reading the building honestly
Read a residential tower from top to bottom and you can watch the money and the evidence pass each other in opposite directions.
The top floor is where the capital lands. The clinic, the diagnostics, the $150,000 membership. It measures the residents with extraordinary precision and changes almost nothing about their days.
The middle floors are the home. Sleep, light, air, quiet. Real levers, mostly settled at the design stage, mostly underwritten already.
The ground floor is where the day is decided. Whether you learn your neighbours’ names. Whether the stairs are worth taking. Whether there is anywhere to sit without paying, anyone to run into without planning. The plinth is the difference between a building as address and a building as social infrastructure, and it is the only lever in this list that a developer controls completely.
And then the street, which keeps the score for the whole city: 13.3 years between one address and another.
Capital flows down that section from the top. Evidence flows up from the bottom. They meet almost nowhere.
Underwriting healthspan
So here is the position I have come to, and what I now do with it.
The ground floor of a residential building is health infrastructure, and should be underwritten as such. In every scheme I touch it carries a dwell requirement: programme people can stay in without a transaction, because a bench and a reason are the cheapest healthcare the built environment has ever produced. And it gets measured, before and after handover. Retention, contact, the reasons people leave. A healthy year added at the bottom of the market is worth more than a biomarker improved at the top, and unlike the biomarker, it compounds for the owner: people who know their neighbours stay.
The standard objection is that none of this is bankable. That objection is now empirically dead. Capital markets already underwrite experience cashflows when they believe the operator: I wrote last week about the stadium sector, where twenty institutions lent Barcelona €1.45 billion against future hospitality and museum income. The lived layer of a building stopped being too soft to finance the moment someone priced it. Housing’s version of that moment is waiting for the first owners who report healthy-year outcomes next to their ESG scores, and define what good looks like before a benchmark does it for them.
The longevity industry will keep growing. $876 billion does not argue itself out of existence, and it should not: better diagnostics at the top of the market will eventually drip down, the way most medicine has. The point is not that the top floor is wrong. The point is that it is small. The years are downstairs.
The longevity industry charges up to $150,000 a year to repair what ordinary buildings cause for free. The repair business is booming. The cause has no line in any budget.
Housing is not real estate. It is infrastructure for human life. The ground floor has been keeping the books on that claim for as long as we have built cities, quietly, in healthy years, for everyone who never bought a membership.
Nobody reads those books yet. The first owner who does will not need a clinic on the roof.
Sources: Global Wellness Institute, 12 May 2026 (wellness real estate $876B in 2025, +23.6% a year 2019-2025, forecast $1.8T by 2030). Longevity clinic membership ranges, industry overview via fountainlife.com, 2026. Healthy life years gap of 13.3 years between Amsterdam’s poorest and richest neighbourhoods, based on CBS/RIVM neighbourhood data (model estimate). CBS StatLine 85766NED (2025), severe loneliness by neighbour contact, cross-sectional. Dutch cohort study, n=146,629, on fast food density and the neighbourhood health gap. Holt-Lunstad et al., meta-analyses on social isolation and mortality. Harvard Study of Adult Development. S.J. Newman, UCL, Ig Nobel Prize 2024, on supercentenarian data and blue zones.