Empower local authorities to introduce rent controls and strengthen tenants' rights
Green · what the evidence says
An independent, source-checked look at Green’s policy “Empower local authorities to introduce rent controls and strengthen tenants' rights” — what it would actually do across the things that affect your life. Every claim below quotes the source behind it. How this works.
Affordable housing — Mixed picture
moderate · moderate confidence
This package of measures would meaningfully improve security and stability for existing private renters, but rent controls in particular risk reducing the supply of rental homes and pushing up rents for new tenants in the uncontrolled market. The net effect on affordability depends heavily on how rent controls are designed and enforced locally.
The evidence
- The policy would empower local authorities to introduce rent controls and end Section 21 no-fault evictions. — greenparty.org.uk (manifesto) — “Empower local authorities to introduce rent controls, end Section 21 no-fault evictions, introduce long-term leases, give tenants the right to demand energy efficiency improvements, and establish Private Residential Tena…”
- Private rents have grown significantly faster than wages in recent years, making affordability worse. — resolutionfoundation.org (institutional) — “from May 2022 to June 2025, private rents grew by 24.2%, while nominal wages rose by 18.6%, leading to average rents being £720 a year higher than if they had grown with wages”
- Rent controls are likely to reduce the supply of rental housing as landlords are discouraged from renting out or investing. — realestateuk.org (media) — “rent controls often lead to a reduction in the supply of rental housing, as landlords may be discouraged from renting out properties or investing in new ones”
- Studies consistently show rent controls reduce new construction in controlled areas. — iea.org.uk (media) — “Studies consistently find negative effects on new construction in areas with rent controls, as developers are less inclined to build new rental properties”
- Rent controls tend to raise rents in the uncontrolled sector, meaning new or mobile renters pay more. — iea.org.uk (media) — “14 out of 17 studies reviewed by the IEA found that rent control leads to higher rents in the uncontrolled sector”
- The UK has a historical precedent of rent controls coinciding with a sharp decline in the private rented sector. — commonslibrary.parliament.uk (government) — “the application of rent controls coincided with a decline in the private rented sector in the UK from nine-tenths of the housing stock in 1915 to one-tenth by 1991”
- Abolishing Section 21 would give tenants significant security, as landlords would need legally recognised grounds to evict. — adambernards.co.uk (media) — “Tenants will gain significant security, as tenancies cannot be ended without a stated, legally recognized reason”
- Some landlords may become more selective in choosing tenants, potentially disadvantaging vulnerable renters. — forsters.co.uk (media) — “some landlords may become more cautious and selective in choosing tenants, favoring those with stable incomes and strong references, potentially disadvantaging vulnerable renters”
- Long-term leases would reduce the financial and well-being costs of frequent moves for tenants. — lse.ac.uk (academic) — “Longer tenancies offer tenants greater assurance and continuity in their homes, reducing the financial and well-being costs associated with frequent moves”
- Some landlords may withdraw properties from the market if they perceive reduced flexibility from long-term lease requirements. — lse.ac.uk (academic) — “There's a risk that some landlords might withdraw properties from the market if they perceive reduced flexibility”
- The impact of rent control depends on its form and economic context, and some experts support stabilisation measures within an enabling regulatory structure. — iea.org.uk (media) — “some argue for rent stabilization and longer tenancies as part of a more enabling regulatory structure”
Biggest unknown: Whether locally-set rent controls are designed tightly enough to avoid the supply-reduction and uncontrolled-sector price effects that most academic evidence associates with rent caps.
Our reading: The evidence presents a genuinely mixed picture across the policy's components. On one side, the supply-side risks from rent controls are well-documented: the IEA review and historical UK data show that rent controls have historically shrunk the private rented sector and pushed up rents in uncontrolled markets. A landlord survey cited for London found significant willingness to sell if stabilisation measures arrived. These effects would hurt new entrants to the rental market and lower-income households who cannot access controlled tenancies. On the other side, the security-of-tenure measures — abolishing Section 21, long-term leases, and dispute boards — address genuine harms documented by the Resolution Foundation's rent-growth data. Existing renters in controlled tenancies would benefit from greater stability, lower risk of arbitrary eviction, and more predictable rents. The policy's local-authority design for rent controls introduces important heterogeneity: a well-calibrated local cap in a high-demand area differs materially from a blunt national freeze, and evidence acknowledges that impact depends on form and context. The energy efficiency right adds a modest quality-of-life benefit but is incremental on existing regulations. On balance, the package improves conditions for existing, settled renters in the short term, but poses moderate risk of reducing supply and worsening affordability for those seeking a home — a classic rent-control trade-off. Neither side is speculative: both are supported by cited evidence. Hence 'mixed' at moderate magnitude.
Personal liberty & free speech — Mixed picture
moderate · moderate confidence
This policy improves tenants' freedom from arbitrary displacement by ending no-fault evictions and providing long-term security, but it simultaneously restricts landlords' property rights through rent controls, mandatory lease conditions, and new compliance obligations. Both effects are real and land on different groups.
The evidence
- The policy ends Section 21 no-fault evictions, empowers local authorities to introduce rent controls, introduces long-term leases, gives tenants the right to demand energy efficiency improvements, and establishes dispute-resolution boards. — greenparty.org.uk (manifesto) — “Empower local authorities to introduce rent controls, end Section 21 no-fault evictions, introduce long-term leases, give tenants the right to demand energy efficiency improvements, and establish Private Residential Tena…”
- Section 21 no-fault evictions have already been abolished by the Renters' Rights Act 2025, effective from May 2026. — societymatterscic.com (media) — “The Renters' Rights Act 2025 has abolished Section 21 "no-fault" evictions, effective from May 1, 2026”
- Section 21 notices created insecurity for tenants by allowing landlords to evict without giving a reason. — societymatterscic.com (media) — “Section 21 notices, which allowed landlords to evict without reason, created insecurity in the private rented sector”
- Under the new system landlords must rely on specific Section 8 grounds subject to judicial assessment, giving tenants more avenues to challenge evictions. — societymatterscic.com (media) — “These grounds are subject to judicial assessment, giving tenants more avenues to challenge evictions”
- Critics argue rent controls reduce housing supply, deter investment, and lower quality — restricting landlords' economic use of their own property. — blog.goodlord.co (media) — “Critics, including the Institute of Economic Affairs (IEA) and the British Property Federation, argue that rent controls can lead to unintended consequences such as reduced housing supply, disincentivizing new constructi…”
- A 2015 study suggested nearly 60% of landlords would consider selling properties if rent stabilisation were introduced in London, indicating significant perceived restriction on property rights. — realestateuk.org (media) — “A 2015 study mentioned by the British Property Federation suggested that nearly 60% of landlords would consider selling some of their properties if rent stabilization measures were introduced in London”
- Proponents argue longer tenancies and security of tenure allow tenants to treat their home as permanent and challenge poor conditions without fear of eviction. — societymatterscic.com (media) — “This change aims to provide tenants with greater security and stability, empowering them to challenge poor housing conditions or unfair practices without the fear of arbitrary eviction”
- Some landlords already perceive the shift away from no-fault evictions as a reduction in flexibility and increased burden. — solegal.co.uk (media) — “Some landlords may perceive this as a reduction in flexibility and an increased burden, potentially influencing their decision to remain in the private rented sector”
Biggest unknown: Whether empowering local authorities to introduce rent controls is ever actually exercised at scale — if few councils use the power, the property-rights restriction is largely theoretical.
Our reading: This policy cuts across O10 in two opposite directions simultaneously, making 'mixed' the honest verdict. On the tenant side, ending no-fault evictions materially improves personal liberty: the ability to live in one's home without fear of arbitrary, legally-unchallengeable removal is a core freedom from coercion. Section 21 allowed landlords to displace tenants with no stated reason and no judicial check — its removal expands tenants' effective freedom in their own living space. Long-term leases reinforce this. The tenant gains real negative liberty: the state is withdrawing a coercive instrument that could be used against them. On the landlord side, the same policy worsens property rights. Empowering local authorities to set rent controls restricts what a landlord may charge for their own property. Mandatory long-term leases reduce the owner's discretion over how their asset is used. The energy-efficiency right adds a compellable obligation. These are genuine restrictions on economic liberty and property rights — core O10 indicators. The shift to Section 8-only evictions imposes legal process and compliance burdens. Note that Section 21 abolition is already law (Renters' Rights Act 2025, May 2026), so that element of the policy is to a degree already delivered rather than new. The genuinely new marginal elements of this policy, as stated, are the local rent-control powers and the dispute boards — the former being the most significant O10 concern from the landlords' perspective. The two effects are real, affect different groups, and cannot be netted to zero. Tenant liberty gains are meaningful at scale (millions of private renters). Landlord property-rights restriction is also meaningful if rent controls are widely adopted. The balance is genuinely mixed, with moderate overall magnitude.
Inequality & fair shares — Mixed picture
moderate · moderate confidence
This package of measures shifts income and bargaining power toward tenants (typically less wealthy) and away from landlords (typically wealthier), narrowing the gap — but rent controls risk shrinking rental supply, which could worsen access and affordability for the most vulnerable renters not yet in a controlled tenancy.
The evidence
- The policy would empower local authorities to introduce rent controls, end Section 21 no-fault evictions, introduce long-term leases, give tenants the right to demand energy efficiency improvements, and establish Private Residential Tenancy Boards. — greenparty.org.uk (manifesto) — “Empower local authorities to introduce rent controls, end Section 21 no-fault evictions, introduce long-term leases, give tenants the right to demand energy efficiency improvements, and establish Private Residential Tena…”
- Average UK monthly private rents stood at £1,381 in April 2026, up 3.5% year-on-year. — ons.gov.uk (government) — “Average UK monthly private rents increased by 3.5% to £1,381 in the 12 months to April 2026”
- The OBR forecasts that private rents will continue to absorb all average wage growth until at least the end of the decade, meaning no improvement in affordability. — jrf.org.uk (institutional) — “The Office for Budget Responsibility (OBR) forecasts that private rents will continue to absorb all average wage growth until at least the end of the decade, meaning no improvement in affordability”
- The Resolution Foundation has argued that rent stabilisation combined with longer tenancies is appropriate for a mainstream private rented sector and need not unduly concern most landlords. — lse.ac.uk (academic) — “The Resolution Foundation, in a 2018 report, suggested that rent stabilisation could be part of a necessary regulatory structure for a mainstream private rented sector, arguing it might not concern the majority of landlo…”
- Critics including the IEA and British Property Federation argue that rent controls reduce housing supply, deter investment, and lower housing quality. — blog.goodlord.co (media) — “Critics, including the Institute of Economic Affairs (IEA) and the British Property Federation, argue that rent controls can lead to unintended consequences such as reduced housing supply, disincentivizing new constructi…”
- Rent controls could push up rents in unregulated areas as landlords seek to recoup losses. — blog.goodlord.co (media) — “Rent controls could also lead to higher rents in unregulated areas as landlords seek to recoup losses”
- A 2015 study found nearly 60% of landlords would consider selling properties if rent stabilisation were introduced in London, suggesting potential supply contraction. — realestateuk.org (media) — “A 2015 study mentioned by the British Property Federation suggested that nearly 60% of landlords would consider selling some of their properties if rent stabilization measures were introduced in London”
- Ending no-fault evictions increases tenant security and the ability to challenge poor conditions without fear of eviction. — societymatterscic.com (media) — “This change aims to provide tenants with greater security and stability, empowering them to challenge poor housing conditions or unfair practices without the fear of arbitrary eviction”
- The Resolution Foundation has argued there is limited evidence that abolishing no-fault evictions will negatively affect supply. — smf.co.uk (media) — “Has argued for stronger renter protections, stating there is "limited evidence" to support concerns that abolishing no-fault evictions will negatively affect supply”
Biggest unknown: Whether rent controls cause enough landlord exit and supply contraction to push up rents in uncontrolled markets, concentrating gains among insiders while harming access for those at the bottom.
Our reading: On the distribution of income and wealth between landlords and tenants, this policy package tilts clearly toward tenants. Landlords are on average wealthier than private renters; rent controls, security of tenure and dispute resolution all transfer real income and bargaining power toward the lower-wealth group. The OBR projection that rents will absorb all wage growth until the end of the decade shows that the current market systematically extracts gains from renters, most of whom sit in lower-to-middle income brackets. Measures that cap or slow rent increases therefore narrow the gap between property owners and renters in the near term. However, the distributional picture is not clean. The supply-side risk is the key complication for O14. If rent controls cause landlords to exit — the 60%-would-sell finding, though originating from a property-federation source and labelled accordingly, points to a real behavioural risk — supply contracts. Those already in a controlled tenancy gain; those outside it, often the poorest, most mobile, or newest to an area, face higher rents or no supply at all in unregulated markets. The LSE/Resolution Foundation and IEA/BPF are genuinely split on the magnitude of this effect, which justifies a 'mixed' rather than 'improves' verdict. The tenant-security reforms (S21 abolition, longer leases, dispute boards) are less contested on distributional grounds: they unambiguously shift power toward lower-wealth tenants and the Resolution Foundation finds limited evidence of adverse supply effects from S21 abolition alone. The rent-control element is the primary source of the mixed signal. On balance, the immediate within-sector distributional effect improves the gap, but the medium-term supply contraction risk could worsen it for the most vulnerable — hence mixed/moderate.
Cost of living — Mixed picture
moderate · moderate confidence
This policy could directly cap rent rises and lower energy bills for tenants who benefit, but credible evidence suggests rent controls risk reducing rental supply and pushing up rents in uncontrolled areas, so gains for some tenants could come at the cost of worse affordability for others. The net effect on cost of living depends heavily on how rent controls are designed and how supply responds.
The evidence
- The policy would empower local authorities to introduce rent controls and give tenants the right to demand energy efficiency improvements. — greenparty.org.uk (manifesto) — “Empower local authorities to introduce rent controls, end Section 21 no-fault evictions, introduce long-term leases, give tenants the right to demand energy efficiency improvements, and establish Private Residential Tena…”
- OBR forecasts that private rents will continue to absorb all average wage growth until at least end of the decade, meaning no improvement in affordability. — jrf.org.uk (institutional) — “The Office for Budget Responsibility (OBR) forecasts that private rents will continue to absorb all average wage growth until at least the end of the decade, meaning no improvement in affordability”
- Average UK monthly private rents increased 3.5% year-on-year to £1,381 in April 2026. — ons.gov.uk (government) — “Average UK monthly private rents increased by 3.5% to £1,381 in the 12 months to April 2026”
- Critics including the IEA and British Property Federation argue rent controls reduce housing supply, deter investment, reduce new construction, and lower quality. — blog.goodlord.co (media) — “Critics, including the Institute of Economic Affairs (IEA) and the British Property Federation, argue that rent controls can lead to unintended consequences such as reduced housing supply, disincentivizing new constructi…”
- A 2015 study found nearly 60% of landlords would consider selling some properties if rent stabilisation were introduced in London. — realestateuk.org (media) — “A 2015 study mentioned by the British Property Federation suggested that nearly 60% of landlords would consider selling some of their properties if rent stabilization measures were introduced in London”
- Rent controls could push up rents in unregulated areas as landlords seek to recoup losses. — blog.goodlord.co (media) — “Rent controls could also lead to higher rents in unregulated areas as landlords seek to recoup losses”
- The Resolution Foundation argued in 2018 that rent stabilisation could be part of a necessary regulatory structure and might not concern most landlords. — lse.ac.uk (academic) — “The Resolution Foundation, in a 2018 report, suggested that rent stabilisation could be part of a necessary regulatory structure for a mainstream private rented sector, arguing it might not concern the majority of landlo…”
- Current regulations already allow tenants to request energy efficiency improvements, and landlords cannot unreasonably refuse if improvements are funded at no cost to them. — heat-insulation.co.uk (media) — “Current regulations (Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015) already allow tenants to request energy efficiency improvements, and landlords cannot unreasonably refuse if the impr…”
- Enforcement of energy efficiency standards is constrained by local authority resource pressures. — vertexaisearch.cloud.google.com (media) — “local authorities, primarily responsible for enforcing housing standards, face significant resource constraints, which could impede the effective implementation of new energy efficiency demands”
- 21% of private rented homes are currently non-decent, including on thermal comfort criteria. — vertexaisearch.cloud.google.com (media) — “21% of private rented homes are currently "non-decent"”
- Some landlords may exit the sector in response to increased regulation, reducing supply. — solegal.co.uk (media) — “Some landlords may perceive this as a reduction in flexibility and an increased burden, potentially influencing their decision to remain in the private rented sector”
Biggest unknown: Whether local rent controls reduce rents for existing tenants more than they shrink supply and push up rents elsewhere — the decisive parameter on which credible analysts genuinely disagree.
Our reading: The core O2 question is: does this policy make essentials — particularly rent and energy — more affordable for ordinary households? On rent: the affordability problem is real and acute — OBR projects no improvement in rent-to-wages ratios through this decade, and average rents are already at £1,381/month. Rent controls would, for sitting tenants, directly cap rent growth and could provide immediate relief. That is a genuine, material benefit for the cost-of-living indicator. However, the evidence base shows a credible supply-side risk: a 2015 landlord survey found ~60% would sell if stabilisation were introduced in London; economists at the IEA and British Property Federation warn of supply contraction and quality deterioration; and there is evidence controls push rents up in unregulated areas. The Resolution Foundation offers a counterpoint — that stabilisation need not harm most landlords — but this is a projected forecast, not a demonstrated outcome at scale in the UK context. The net effect on the average or lower-income renter therefore depends critically on how many landlords exit, how quickly, and whether new supply fills the gap. On energy bills: the right to demand energy efficiency improvements has teeth only if the funding mechanism works. Existing law already provides this right; the marginal gain from this policy is incremental unless enforcement improves. With 21% of private rented homes non-decent on thermal comfort grounds, the potential gain is real, but enforcement faces documented local-authority resource constraints. End of Section 21 and long-term leases primarily improve security of tenure — an O2-adjacent benefit in reducing the cost of involuntary moves — but do not directly cut rent or energy bills. Overall: there are genuine, evidence-supported upside mechanisms (rent caps for sitting tenants, lower energy bills) and genuine, evidence-supported downside risks (supply contraction, rent spillovers). Both sides are supported by cited evidence from credible institutional sources, warranting a 'mixed' verdict at moderate magnitude.
Clean environment & nature — Little effect
minor · low confidence
The policy gives tenants the right to demand energy efficiency improvements, which could modestly improve home energy performance over time — but an almost identical right already exists in law, and enforcement faces severe resource constraints at local authority level. The net environmental gain above the status quo is likely very small.
The evidence
- The policy gives tenants the right to demand energy efficiency improvements. — greenparty.org.uk (manifesto) — “give tenants the right to demand energy efficiency improvements”
- Current regulations already allow tenants to request energy efficiency improvements, with landlords unable to unreasonably refuse if funded at no cost to them. — heat-insulation.co.uk (media) — “Current regulations (Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015) already allow tenants to request energy efficiency improvements, and landlords cannot unreasonably refuse if the impr…”
- Landlords are already required to ensure properties meet a minimum EPC E rating. — england.shelter.org.uk (media) — “Landlords are also generally required to ensure properties meet a minimum EPC E rating”
- 21% of private rented homes are currently 'non-decent', with thermal comfort among the criteria. — vertexaisearch.cloud.google.com (media) — “21% of private rented homes are currently "non-decent"”
- Local authorities face significant resource constraints that could impede effective implementation of new energy efficiency demands. — vertexaisearch.cloud.google.com (media) — “local authorities, primarily responsible for enforcing housing standards, face significant resource constraints, which could impede the effective implementation of new energy efficiency demands”
- Improved energy efficiency in homes could reduce illness and excess winter deaths. — vertexaisearch.cloud.google.com (media) — “safe, warm, well-insulated homes reduce illness, injuries, mental health harms and excess winter deaths”
Biggest unknown: Whether strengthened tenant rights to demand efficiency improvements would materially exceed the existing framework, given that local authorities lack the resources to enforce current standards.
Our reading: Of the five elements in this policy, only one — the right to demand energy efficiency improvements — directly touches O6. The rest (rent controls, no-fault evictions, long-term leases, dispute boards) are primarily housing security and affordability levers with no direct environmental pathway evidenced in the provided units. On energy efficiency: an almost identical right already exists under the 2015 regulations, and landlords are already required to meet EPC E. The policy's marginal gain above the status quo is therefore narrow. Warmer, better-insulated homes would in principle reduce emissions and improve health, but the enforcement mechanism — local authorities — faces 'significant resource constraints' that could impede implementation. There is no committed budget, statutory enforcement uplift, or quantified target in the stated policy text to close this gap. The direction is therefore negligible to minor at best. A real but small additional impetus toward energy efficiency is plausible, but the mechanism overlaps heavily with existing law, and the delivery constraint is well-evidenced. Absent the policy, the same framework already exists; the counterfactual gap is thin. Confidence is low because the evidence on marginal impact above existing law is not quantified in any provided source.