BLOGS

The squeeze is real — and the data confirms it

The UK private rented sector entered 2026 under sustained pressure from two directions: rising costs and shrinking supply. REalyse data covering the 12 months to mid-2026 shows average asking rents across 118 postcode areas have increased by a median of 3.7% year-on-year, with the national average asking rent sitting at approximately £1,385 per month — up from around £1,335 the prior year.

But the more striking story is on the supply side. Across the same postcode areas, the volume of active rental listings fell by roughly 20% compared with the previous 12-month period. In some of London's most pressured zones — SE, N, E, and SW — listing counts dropped by between 23% and 26% year-on-year. Fewer homes to rent, combined with persistent demand, is the engine behind rent growth that continues to outpace wage inflation in many parts of the country.

Tenants are not simply paying more: in many markets, they are competing harder for less.

London leads on price, but regional cities are catching up fast

London retains its position as the most expensive rental market in the UK by some distance. REalyse data places the W postcode area (west-central London) at an average asking rent of £3,864 per month, with SW London at £3,699 and NW at £3,103. Even in outer London zones such as E (east London, averaging £2,437/month) and SE (£2,321/month), rents remain well beyond the reach of median-income households without significant income.

Yet the fastest rent growth over the past 12 months has not always come from the capital. Bath (BA postcode area) recorded year-on-year asking rent growth of approximately 9.8% — the sharpest increase in the dataset — with average rents reaching around £1,636 per month. Bristol (BS) rose 3.7% to £1,792/month. Croydon (CR) climbed 5.4% to £1,838/month, and southwest Surrey (GU) gained 5.3% to reach £1,967/month.

This spread of pressure into commuter belts and regional cities reflects a structural shift in where people want to live and what they can afford. Remote and hybrid working patterns have sustained demand in areas that were previously considered secondary markets, while supply in those same areas has not kept pace.

A shrinking landlord base and the regulatory ratchet

The supply contraction is not accidental. It is, in large part, the product of a sustained landlord exit from the private rented sector — driven by a combination of higher mortgage costs, tighter tax treatment, and an increasingly demanding regulatory environment.

In England, the Renters' Rights Act — which came into force in 2025 — abolished fixed-term assured shorthold tenancies and introduced rolling periodic tenancies as the default, alongside a new Decent Homes Standard for the private sector and a national landlord register. The legislation was framed as protection for tenants, and in many respects it is. But for smaller, leveraged landlords, the cumulative burden of compliance — layered on top of Section 24 mortgage interest relief restrictions, EPC upgrade requirements targeting a Band C minimum by 2030, and the end of no-fault evictions — has made the maths difficult.

ONS and HMRC data have pointed to a gradual reduction in the number of individual landlords declaring rental income, particularly among those owning one or two properties. Many are selling into the owner-occupied market rather than funding upgrades or navigating new tenancy rules. The result is that the homes being lost to the private rented sector are disproportionately at the affordable end — modest terraced and semi-detached properties in suburban and commuter markets.

Scotland has operated under rent control measures since the Cost of Living (Tenant Protection) (Scotland) Act 2022, and the longer-term framework under the Housing (Scotland) Act continues to evolve. While the intent is to protect tenants from sudden rent spikes, some landlord groups and industry analysts argue the controls have accelerated supply withdrawal in Scottish cities, particularly Edinburgh and Glasgow, where demand from students and young professionals remains intense. In Wales, the Renting Homes (Wales) Act 2016 — fully commenced in 2022 — introduced its own set of occupancy contract requirements, adding to the compliance obligations for landlords operating across borders.

Flats carry the market — but affordability is eroding

By property type, flats dominate the UK rental market. REalyse data from the past 12 months shows flats accounting for over 379,000 rental listings — more than three times the volume of terraced homes (121,500) and nearly seven times that of detached properties (56,500). The average asking rent for a flat currently stands at £1,645 per month nationally, but at £32.05 per square foot annually, flats command a significant space-efficiency premium over houses — terraced homes average £20.88/sqft and detached homes £18.66/sqft.

That premium reflects the reality of the rental market: flats are where supply is concentrated, particularly in urban areas, and they serve the largest share of tenants — younger households, single occupiers, and those priced out of ownership. But it also means the most affordable segment of the rental market by monthly rent is, by square-footage, the most expensive.

For context, a household earning the UK median salary of approximately £37,000 gross (roughly £2,600–£2,700 net per month) spending the national average asking rent of £1,385/month is allocating more than 50% of take-home pay to rent. In London, that ratio deteriorates sharply. Rent-to-income ratios of 60–70% are no longer unusual in inner London boroughs, and even in many regional cities, the 30% affordability benchmark that has long guided housing policy is increasingly theoretical.

What this means for the market ahead

The outlook for UK renters in the near term is not encouraging. New rental supply depends either on existing landlords choosing to stay and invest, or on institutional build-to-rent (BTR) development scaling up to fill the gap. BTR has grown significantly — there are now over 100,000 completed BTR units in the UK, with a substantial pipeline — but it remains concentrated in city centres and large regional hubs, and rents in purpose-built schemes typically sit at or above market rate.

Planning data tracked by REalyse shows a healthy BTR pipeline in cities such as Manchester, Birmingham, Leeds, and Bristol, but delivery timelines remain long and schemes are sensitive to finance costs. In the meantime, the gap between supply and demand in the private rented sector is unlikely to close materially in the next 12–18 months.

The pressure points to watch

For investors and landlords with long-term horizons, the current environment presents a nuanced picture. Yield compression in prime London remains a challenge, but in outer London and many regional markets, rising rents against still-accessible purchase prices are improving gross yields. REalyse data can identify districts where rental growth is outpacing price appreciation — creating windows where yield-focused acquisitions may still be well-timed.

For tenants, the message is harder. Until supply responds — whether through new development, landlord reinvestment, or policy incentives that reverse the current exit trend — the supply-demand imbalance will continue to exert upward pressure on rents across most of the UK.

The regulatory intent is right: tenants deserve security, decent homes, and fair treatment. The challenge for policymakers is ensuring the rules designed to protect renters do not, in practice, reduce the number of homes available to them.