Buy-to-let turns 30 this year. What began with a press conference at London's RAC Club in September 1996 has grown into a £300bn-plus corner of UK mortgage lending, supporting close to five million households in the private rented sector.
Paragon Bank, one of the original panel lenders when the first products launched in October 1996, has published a report to mark the anniversary. Entitled 30 Years of Buy-to-Let, it examines how the product has developed from a niche financing solution into a mature asset class.
The numbers reflect that journey. Outstanding buy-to-let loans now stand at 1.92 million, worth £311.6bn in total, with annual lending reaching £40.3bn in 2025. The sector accounts for roughly a fifth of all outstanding mortgage balances, and the private rented sector it has helped fund has grown from fewer than two million households in England to almost five million, or close to one in five homes.
Buy-to-let emerged from collaboration between what was then the Association of Residential Letting Agents (ARLA), now Propertymark, and a small group of lenders including Paragon. Demand for rented homes was growing at the time, but landlords had no mortgage products designed around the realities of residential letting.
"Demand for rented homes was growing, but landlords lacked access to finance designed around residential lettings," said John Heron, former executive director at Paragon and one of the figures involved in the product's creation.
"Buy-to-let was created to solve that problem and bridge that gap, encouraging investment into the private rented sector and helping to increase housing supply at a time when it was badly needed.
"The idea was straightforward. If owner-occupiers had mortgage products tailored to their needs, landlords should too. What followed was a lending framework that took into account different facets of lettings business and the people that operated them and created a more practical route for investors to provide privately rented homes."
Over the three decades since, the market has absorbed the global financial crisis, successive rounds of tax reform and tighter regulation, a pandemic, and a prolonged period of higher inflation and interest rates. Through each of those cycles, Paragon's analysis finds the sector's credit performance has remained strong. Buy-to-let arrears have been lower than those for owner-occupier mortgages in every year since records began, bar one.
The profile of the typical landlord has shifted considerably in that time. Remortgaging now accounts for the majority of lending activity, reflecting the influence of experienced investors managing established portfolios rather than buyers acquiring individual properties for the first time.
"Paragon's analysis shows just how much the market has evolved over the past three decades," said Louisa Sedgwick, managing director of mortgages at Paragon Bank.
"Landlords have adapted to changing economic conditions, taxation and regulation, becoming increasingly strategic in the way they manage their portfolios and approach long-term investment.
"Many landlords now operate their portfolios as businesses, taking a long-term view of investment and responding to changing tenant expectations, housing standards and regulation. The result is a market that is more professional and commercially focused than when buy-to-let first emerged."
Alongside the financial evolution, the report points to broader improvements across the private rented sector. The proportion of non-decent homes has more than halved over the past two decades, and energy efficiency standards have improved as landlords have continued to invest in upgrading their properties.
"The creation of buy-to-let showed what can be achieved when different parts of the housing industry work together," said Nathan Emerson, chief executive of Propertymark.
"Letting agents were seeing first-hand the growing demand for rented homes and the challenges landlords faced accessing finance that reflected the realities of residential letting.
"Working alongside lenders including Paragon, ARLA helped develop a framework that encouraged investment into the private rented sector and increased the supply of homes available to rent. Thirty years on, that spirit of collaboration remains just as important."
"Buy-to-let is part of Paragon's DNA," said Nigel Terrington, chief executive officer of Paragon Banking Group. "We were involved at the inception of the market and have supported landlords through every stage of its development over the past three decades.
"The needs of landlords today are very different from those of the mid-1990s. As the market has evolved, we've evolved with it, continuing to invest in specialist expertise, develop our lending and adapt our support to meet the changing needs of landlords and brokers.
"Our commitment remains the same as it was thirty years ago, helping responsible landlords invest in and provide good-quality rented homes."
