Landlords who took out one of the first buy-to-let mortgages when the product launched in September 1996 have left the stock market trailing ever since. Research from estate agent Hamptons puts buy-to-let returns over 30 years at 2,130 per cent, once rising property values and rent paid by tenants are combined.
That works out at £22.30 back for every £1 put in, narrowly ahead of the S&P 500 and far clear of the FTSE 100. The same research, however, shows that the investors buying now look very different from those who built the sector, and so does the way they borrow.
How buy-to-let returns over 30 years compare
On Hamptons’ figures, US equities ran property close. With dividends reinvested, every £1 placed in the S&P 500 would now be worth £22.05, a return of 2,105 per cent.
The UK’s blue-chip index trailed a long way behind. The FTSE 100 returned 796 per cent, leaving both rental property and US shares ahead by a factor of almost three.
The headline number deserves careful reading. It measures the return on money put into a mortgaged purchase, so the gearing that comes with borrowing does much of the heavy lifting, magnifying gains in a rising market just as it would magnify losses in a falling one.
From side income to family business
Hamptons believes the longevity of early portfolios explains much of how the market looks today. Aneisha Beveridge, head of research at Hamptons, said: “Today’s largest portfolios often started off life in the late 1990s and have accrued substantial equity through successive house price booms, creating equity which has often been reinvested.”
She added: “For a growing number of landlords, those properties are now part of a wider family business that is likely to be passed down to the next generation rather than being sold off in the face of rising tax rates.”
That preference for holding over selling makes sense while tax rates on landlords keep climbing. For many families, succession planning now starts with ownership structure, and the long-running question of limited company versus personal ownership for buy-to-let is as much about inheritance as it is about income tax.
Beveridge also looked back at the product’s origins: “When the buy-to-let mortgage was launched in 1996, few predicted it would become one of the largest wealth-creation engines of modern British history.”
A different landlord with a different mortgage
The typical buyer has aged considerably. In 1996, the average person buying with a buy-to-let mortgage was 37, while today the average is 51, which Hamptons takes as evidence that combining rental income with a day job has become increasingly rare.
Borrowing habits have reversed as well. According to Hamptons, 88 per cent of buy-to-let purchases were previously made on repayment mortgages and 26 per cent on fixed rates, whereas 70 per cent are now interest-only and fixed-rate deals account for 99 per cent.
The agent describes the modern investor as “a 51-year-old professional navigating higher prices and taxes, slower price growth, while prioritising monthly cashflow to help mitigate risk”.
Interest-only borrowing keeps monthly outgoings low and cash flow healthier, but it leaves the capital debt untouched. That puts more weight on future price growth, which is precisely the element Hamptons suggests is slowing.
Near-universal fixing, meanwhile, gives landlords certainty over costs for the length of the deal. It also concentrates risk at the point of refinancing, when the portfolio is exposed to whatever rates are on offer.
What this means for investors
The 30-year record is a strong argument for patience, but it was earned through successive house price booms and a lighter tax burden that newer landlords cannot count on repeating. Buyers entering today will need returns built on yield and disciplined gearing rather than relying on capital growth to do the work.
For owners of long-held portfolios, the priority is shifting from expansion to preservation and transfer, which helps explain why so many landlords are now going corporate in record numbers. Either way, the numbers are a reminder that buy-to-let has never been the passive income it is sometimes sold as: the winners of the next 30 years will be those who manage leverage, tax and refinancing risk as carefully as they choose their properties.
