What the Act changes from today

The legislation, which received Royal Assent earlier this year and took effect on Friday, rewrites the framework governing England's private rented sector. Its two headline measures are the abolition of Section 21 "no-fault" evictions and the end of fixed-term tenancy contracts. From 30 April, all rental agreements automatically become periodic, or rolling, tenancies. Tenants need provide only two months' notice to leave, according to the Act's provisions.

The National Residential Landlords Association (NRLA) described the package as the biggest shakeup to the private rental market in nearly 40 years, as reported by City AM. Further provisions, including decent homes standards for the private rented sector and the creation of a new rental ombudsman, are still to be implemented.

Ben Beadle, chief executive of the NRLA, said he hopes the Act will "root out for good the minority of rogue and criminal landlords who undermine the reputation of the responsible majority," as quoted by City AM.

Steve Reed, Secretary of State for Housing, said the legislation "marks the biggest leap forward in renters' rights in a generation," according to a government statement published on 30 April.

For operators across the residential property chain, the question is not whether the Act's tenant protections are justified, but what the second-order commercial effects will be.

Why landlords are selling, and what it means for supply

Law firms report a rush of disposal instructions in the weeks before the deadline. Thackray Williams, a London-based firm, said it received a wave of last-minute selling instructions from landlords ahead of the Act's commencement, as reported by City AM.

Mustafa Sidki, a contentious construction litigation partner at Thackray Williams, said:

"This reduced flexibility is causing many landlords to rethink their investment strategies, especially as other factors mean they are facing reduced, and even negative cashflow, while also facing increased admin and responsibilities."

The selling trend did not begin on 30 April. Buy-to-let mortgage lending has fallen steadily since the phased removal of mortgage interest tax relief began in 2016, with UK Finance data showing a continued decline in new landlord purchases through 2025. The Act adds regulatory risk on top of an already deteriorating tax position, compressing yields further for smaller portfolio landlords.

Claire Josef, a conveyancing partner at Thackray Williams, warned that the influx of former rental stock onto the sales market could weaken house prices, "particularly in areas that have traditionally had a strong rental sector," as reported by City AM.

The arithmetic is straightforward. England's private rented sector comprises roughly 4.6 million households. Every property sold by a landlord to an owner-occupier removes a unit from the rental stock. Unless an equivalent number of new rental units enters the market, supply contracts and upward pressure on rents intensifies, precisely the outcome the Act's supporters sought to avoid.

Audit firm RSM noted that housing developments are becoming more favourable for developers as landlords "retract from the market and shrink their portfolios" in response to increasing regulation, according to City AM.

Build-to-rent and the knock-on for developers

The institutional build-to-rent sector was supposed to fill the gap left by retreating amateur landlords. The thesis was simple: professionally managed, purpose-built rental blocks would offer tenants better service and investors more predictable income streams than scattered buy-to-let portfolios.

That thesis is under strain. The British Property Federation has reported a drop in new build-to-rent starts, and City AM has previously reported that London planning wait times for such schemes have doubled. Slower planning approvals raise holding costs, erode internal rates of return, and make marginal schemes unviable.

The Act introduces additional operational complexity for institutional operators. Rolling tenancies make void forecasting harder. Restrictions on regaining possession mean that problematic tenancies carry a higher cost and longer resolution timeline. None of this is unmanageable for well-capitalised operators with in-house legal teams, but it changes the underwriting assumptions on which development appraisals rest.

For SME housebuilders and developers considering flatted schemes with a rental exit, the calculus has shifted. A block of 50 flats intended for sale to individual buy-to-let investors now faces a thinner buyer pool. A forward-funded deal with an institutional build-to-rent operator may take longer to negotiate if that operator is itself repricing risk. The result, in the near term at least, is likely to be fewer flatted starts and a further drag on housing supply.

Unintended consequences: stricter screening and lower-income renters

Perhaps the most commercially significant, and least discussed, consequence of the Act is its likely effect on tenant selection.

Because the new rules make it more difficult and more expensive for landlords to regain possession of a property, several property lawyers have warned that landlords will become substantially more selective about whom they accept as tenants. The logic is risk mitigation: if exit costs rise, entry standards tighten.

Sim Sekhon, chief executive of Legal for Landlords, an advisory service, said the Act "aims to create a fairer, more secure rental market for tenants," but added a pointed caveat. "As landlords lose certain safeguards, many will look to mitigate risk elsewhere, most commonly through stricter affordability criteria," Sekhon said, as quoted by City AM.

The implication is that renters on lower incomes, those who on paper appear less dependable to a risk-averse landlord, could find themselves locked out of the market altogether. That is an unintended consequence with real commercial dimensions. Employers in hospitality, retail, logistics, and care, sectors that rely on a workforce able to find affordable rental housing near their place of work, may face recruitment and retention difficulties if housing access narrows.

Jonathan Sinton, head of mortgage relations at Coventry Building Society, warned that the reforms could cause "good" landlords to exit the market, leaving a rump of exploitative operators who hike rents, as reported by City AM. "The renters' rights act brings meaningful protections for tenants, and all responsible landlords will welcome that. But it's important the changes work for landlords too," Sinton said.

What operators should be watching

The Act is now law, but its full regulatory apparatus is not yet in place. The decent homes standard for private rentals and the new ombudsman service remain forthcoming. Their design will determine the ongoing compliance burden for landlords and property managers.

Three metrics matter for businesses exposed to the residential property market. First, the pace of landlord disposals over the next 12 months and whether they translate into measurable rental supply contraction. Second, build-to-rent planning and completion data from the British Property Federation, which will signal whether institutional capital is stepping in or stepping back. Third, tenant referencing rejection rates, which will reveal whether stricter affordability screening is narrowing access to the private rented sector.

The Renters' Rights Act addresses genuine problems in England's rental market. Whether it solves them without creating new ones is a question the data will answer over the coming year.