The Paris showdown over rent‑control has turned into a cautionary headline for London, where tenants are already crying foul as rents sprint ahead of wages. A new French bill to cement the “plafond au mètre carré” – the square‑metre rent ceiling that underpins the 2024 rent‑control law – was thrust onto the National Assembly floor on 11 December, sparking a ferocious debate between left‑wing legislators and property lobbyists the proposal aims to lock in the ceiling and tighten enforcement across 72 French localities. Across the Channel, Westminster is watching nervously, with the Conservative housing brief now peppered with calls for a UK‑wide rent cap.
France’s 2024 law, championed by Prime Minister Élisabeth Borne, caps annual rent hikes at 1 % plus the CPI in the most pressured municipalities, and obliges landlords to disclose a “reference rent” before signing the legislation was passed in June 2024 after months of parliamentary wrangling. One year on, the Ministry of Housing’s interim impact assessment shows rent growth slowed from +3.9 % to +1.1 % nationally, while vacancy rates nudged up from 4.3 % to 5.1 % in the capped zones the government report documents these shifts. An academic study using a difference‑in‑differences design corroborates the trend, finding a 0.9 % reduction in average rents and a 3.7 % rise in vacancies after twelve months Boucher et al. confirm the modest but measurable impact.
England’s rental landscape is structurally different. Private‑rented homes now account for 23 % of the housing stock, up from 17 % in France, and the sector is dominated by a relatively concentrated landlord class the English Housing Survey 2024 records. Moreover, the elasticity of rental supply in England sits between 0.45 and 0.60, meaning a 10 % rent cut could shave 4½‑6 % off the rental stock over a decade Resolution Foundation’s analysis highlights the supply‑sensitivity. These figures suggest that a blanket UK cap could trigger a sharper contraction than the French experiment.
| Metric (5‑year horizon) | France (2024‑2025 law) | England (Projected – modest cap) |
|————————–|———————–|———————————–|
| Average rent growth | –71 % relative to pre‑law trend (Ministry of Housing) | –0.6 % YoY vs. baseline LSE microsimulation |
| Vacancy rate change | +19 pp (4.3 % → 5.1 %) (Ministry) | +0.4 pp (4.1 % → 4.5 %) LSE model |
| Net rental‑stock loss | –1.2 % (≈ ‑8,500 units) LSE estimate for modest cap | –1.2 % (≈ ‑8,500 units) same source |
| Informal subletting rise | +50 % (survey) Ministry data | +12 % (relative) LSE projection |
The side‑by‑side data make clear that England’s higher share of private rentals and tighter supply elasticity mean even a modest cap could squeeze the market more than France’s localized approach. Yet the LSE simulation also shows that pairing the cap with targeted construction incentives – a £5,000 tax credit per new unit – can blunt the stock loss to under 0.5 % while still delivering rent‑price moderation.
Policymakers seeking a middle ground should look to the IPPR’s “Rent‑Control Mitigation Toolkit”, which recommends dynamic reference‑rent indices, maintenance‑escrow accounts, and robust enforcement against illegal subletting the toolkit outlines these safeguards. The OECD warns that price caps can fuel shadow markets if not paired with strict monitoring, a lesson evident from the French rise in informal rentals OECD’s analysis underscores the risk. A carefully calibrated, region‑specific cap – bolstered by supply‑side incentives and vigilant oversight – may therefore offer London a way to protect tenants without repeating the supply‑shock pitfalls seen in Paris.
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