Why the rental market may tighten even without rising demand

A common assumption is that rental prices and availability are driven primarily by tenant demand. The latest data suggests that supply-side changes may play an equally important role. According to the Property118 Landlord Sentiment Survey Q1 2026, landlord behaviour alone has the potential to tighten the market, even if demand remains stable.

Based on 2,380 completed responses, 57% of landlords plan to reduce their portfolios, while only 6.8% intend to expand. You can review the full findings here.

The implication is clear: supply dynamics are shifting.

Supply does not require falling demand to tighten

Market tightening is often associated with increased demand. However, supply can also contract independently. The survey data highlights a scenario where fewer properties may be available to rent, regardless of changes in tenant demand. If landlords reduce their portfolios and fewer replace them, the total number of rental properties can decline. This creates pressure on availability.

A gradual reduction in stock

The reduction in supply is unlikely to happen all at once. Instead, it is likely to occur gradually, as individual landlords sell properties over time. Each sale may appear insignificant in isolation, but collectively they can lead to a noticeable shift. This is particularly relevant when selling activity is not matched by new investment. The imbalance highlighted in the Property118 dataset suggests that this may be the case.

Demand is only part of the equation

Focusing solely on tenant demand provides an incomplete picture. Even if demand remains constant, a reduction in supply can alter market conditions. Fewer available properties can lead to increased competition among tenants, changes in pricing and shifts in availability. Understanding both sides of the equation is essential. The survey highlights how landlord decisions contribute directly to the supply side.

A structural rather than cyclical shift

Short-term fluctuations in supply and demand are common. What the data suggests is something more structural. The combination of reduced portfolios, limited expansion and an ageing landlord base points towards a longer-term change in how supply is generated. This is not simply a response to current conditions, but part of a broader transition.

A different kind of pressure

The potential tightening of the rental market may not come from increased demand, but from reduced supply. This creates a different type of pressure, one that is less visible in traditional indicators but equally important.

For now, one conclusion stands out: the rental market may tighten not because more tenants are entering, but because fewer landlords are choosing to remain.

A conversation worth having?

If you are weighing up your own strategy, whether that’s to sell, expand, or restructure to improve profitibility, it is worth having a discussion with a Property118 consultant to take a closer look at how your portfolio is structured as a whole now, and to forecast the outcomes based on multiple scenario’s.

These conversations are typically most useful for landlords with established portfolios and relatively modest borrowing who are beginning to reflect on how their assets could work more effectively in the years ahead.