Savills' latest analysis of the prime central London (PCL) rental market confirms what many agents on the ground have been reporting for months: the extraordinary rental growth that defined 2021 to 2023 has run its course. Annual rental value growth across PCL postcodes has slowed to low single digits, a marked deceleration from the double-digit increases recorded at the height of the post-pandemic rebound, when returning professionals and international tenants collided with a severely depleted rental stock. For landlords who have grown accustomed to compounding rental uplifts year after year, this normalisation marks a significant inflection point.

The reasons behind the slowdown matter as much as the headline figure. Supply in postcodes such as Mayfair, Knightsbridge, Chelsea and Belgravia has improved modestly as some landlords who delayed selling during the stamp duty and mortgage rate turmoil of 2022–23 have brought properties back to the lettings market rather than testing a soft sales market. At the same time, demand has softened at the margins, with the reform of the non-dom tax regime prompting a cohort of high-net-worth international tenants to reconsider their London base, or at least delay relocation decisions until the fiscal picture becomes clearer. Savills' data suggests this has disproportionately affected the £5,000-plus per week super-prime segment, where transaction volumes have thinned noticeably compared with the frenetic pace of 2022.

This matters well beyond the boundaries of SW1, SW3 and W1 postcodes. Prime central London has historically acted as a bellwether for sentiment among global capital, and a cooling rental market there often precedes softer investment appetite for London property assets more broadly, including the commercial and build-to-rent sectors that institutional investors have poured capital into over the past five years. Developers active in the capital's luxury residential pipeline — from Nine Elms to Marylebone — will be watching closely, since rental performance underpins the exit assumptions built into many high-end schemes still working through planning or construction.

Regional investors should not read this as a London-only story. Manchester, Birmingham, Leeds and Liverpool have all benefited from a flight of capital and tenant demand away from an overheated London market over the past two years, with prime city-centre rents in Manchester up by more than 6% annually and Birmingham not far behind, according to industry tracking data. If PCL rental growth continues to soften while yields in regional cities remain structurally higher — often 5.5% to 6.5% gross compared with 3% to 3.5% in prime London postcodes — buy-to-let landlords with flexible capital are likely to continue redirecting acquisitions towards the North West, West Midlands and the North East, where Newcastle in particular has quietly delivered some of the strongest rental growth outside the South East.

The policy backdrop compounds this shift. The Renters' Rights Bill, tightening EPC requirements and the phased withdrawal of mortgage interest relief have all increased the operational burden on landlords, and PCL is not immune. Savills' figures imply that some landlords in higher-value properties are exiting the sector altogether rather than absorbing compliance costs on assets that already carry thin yields, which explains why supply has ticked up even as sales markets remain subdued. For first-time buyers and owner-occupiers, this dynamic is largely irrelevant, since PCL sits well outside their price bracket, but it does illustrate a broader pattern of landlord attrition that is gradually pushing rental stock — and rental pricing power — towards fewer, better-capitalised operators, including build-to-rent institutions.

Looking ahead to the next six to twelve months, expect PCL rental growth to settle into a low single-digit range, with super-prime stock facing continued softness unless non-dom tax policy is revisited or clarified favourably. Corporate relocation demand from banking, private equity and tech sectors will remain the primary support for the market, particularly around Mayfair and the West End, while landlords holding smaller flats in Chelsea and Kensington will likely see rents track closer to wage growth than to the exceptional gains of recent years. For investors, the message is clear: prime central London remains a market of capital preservation and lifestyle appeal rather than rental yield, and those chasing income should increasingly look towards regional UK cities where structural undersupply and stronger yield fundamentals continue to outweigh the prestige premium of a London postcode.

Key Takeaways

  • PCL rental growth has slowed to low single digits, down from double-digit increases seen in 2021–2023, as supply recovers and international demand softens.
  • Non-dom tax reform is denting demand in the super-prime (£5,000+ per week) segment, while corporate relocation demand remains the market's main support.
  • Regional cities including Manchester, Birmingham and Newcastle continue to offer stronger rental yields (5.5%–6.5%) than PCL's 3%–3.5%, drawing landlord capital away from London.
  • Regulatory pressure from the Renters' Rights Bill and EPC rules is accelerating landlord exits in prime London, consolidating stock among institutional and build-to-rent operators.