Buy-to-let has delivered a 2,130% total return since the first dedicated mortgage launched 30 years ago, narrowly outperforming the S&P 500, new analysis suggests.

Research from Hamptons calculates that £1 invested in an average UK buy-to-let property in late 1996 would have generated £22.30 in total returns by 2026.

That compares with £22.05 from the S&P 500, including reinvested dividends.

The return was also substantially higher than the FTSE 100 at £8.96 and gold at £7.36.

However, the more recent picture is very different.

Over the past five years, Hamptons calculates that buy-to-let produced a cumulative return of 41%. That compares with 75% from the S&P 500 and 73% from the FTSE 100.

The figures come as buy-to-let marks 30 years since the launch of the first dedicated mortgage in September 1996.

Rent drives majority of landlord returns

Hamptons’ analysis suggests rental income has played a bigger role in long-term returns than house price growth.

Nearly two-thirds, or 62%, of total buy-to-let returns over the period came from rental income after running costs. The remaining 38% came from rising property values.

The findings highlight how the economics of buy-to-let have changed since the market emerged in the 1990s.

In 1996, the average landlord buyer was 37 years old and paid £54,900 for a property.

Today, the average investor is 51 and pays £360,600 – an increase of 557%.

Mortgage strategies have also changed significantly.

In 1996, 88% of landlords taking out a mortgage opted for repayment. Today, that figure stands at 30%.

Meanwhile, seven in ten mortgaged buy-to-let purchases now use interest-only finance.

Fixed-rate borrowing has moved in the opposite direction. Fixed deals accounted for 26% of buy-to-let mortgages in 1996, compared with 99% today.

Average mortgage rates stood at 7.76% in 1996, against 4.52% in 2026.

Higher barrier to becoming a landlord

The figures also illustrate the substantially higher cost of entering the market.

Although the average deposit has changed little as a proportion of the purchase price, property values have increased more than sixfold.

Average deposits represented 29% of the purchase price in 1996, compared with 27% today.

Hamptons said this has contributed to an older investor profile and greater emphasis on rental cash flow.

Aneisha Beveridge, head of research at Hamptons, said: “The profile of landlords has shifted over the course of a generation.

“What began as a relatively accessible investment for first-time landlords in their 30s has evolved into a more professionalised sector dominated by older, experienced investors.”

She added: “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.”