An 11-year review of Autumn Budget announcements demonstrates that stability in political and economic conditions significantly influences high-value London property transactions. The period under the Johnson-Sunak government delivered the most robust market activity, while recent Labour-led policies have encountered resistance.
Data compiled by Beauchamp Estates assessed property sales exceeding £5 million and £10 million in Prime Central London (PCL) during four-month intervals before and after each Autumn Budget from 2015 through 2025.
The 2015 Autumn Statement, led by Prime Minister David Cameron and Chancellor George Osborne, triggered a 30% surge in transactions for homes valued above £5 million, climbing from £951.7 million (105 deals) to £1.24 billion (114 deals).
For properties priced over £10 million, sales volume jumped 65%, increasing from £425.5 million (25 transactions) to £700 million (35 transactions). Purchasers accelerated closings to avoid the upcoming 3% supplementary Stamp Duty on additional residences, effective 1 April 2016.
The 2017 Autumn Budget, under Theresa May and Philip Hammond, produced limited gains. Sales above £5 million grew by just 15%, from £826.7 million (85 deals) to £948.5 million (97 deals).
Meanwhile, the £10 million-plus category contracted by 10% in deal count, dropping from 29 to 26 transactions. This weaker performance coincided with heightened political instability following the June 2017 general election, which produced a hung Parliament and a Conservative minority administration.
Read Also: Home Movers Report Information Gaps and Delays
The 2021 Autumn Budget, delivered by Boris Johnson and Rishi Sunak, produced a 26% increase in sales exceeding £5 million, rising from £1.32 billion (144 deals) to £1.66 billion (165 deals). The ultra-high-value segment saw a 32% boost, from £656.8 million (42 deals) to £865 million (47 deals).
Midway through the study, the September 2022 ‘Mini-Budget’—issued by Liz Truss and Kwasi Kwarteng—resulted in a 24% decline in total sales, from 177 properties to 135. However, the £10 million-plus tier expanded by 40%, from £738.4 million (44 deals) to £1.03 billion (50 deals), as younger affluent investors took advantage of prices that had decreased by 19% since 2014.
The 2023 Autumn Budget, under Rishi Sunak and Jeremy Hunt, saw sales above £5 million decrease by 5%, from £1.46 billion (147 deals) to £1.39 billion (137 deals). The £10 million-plus category fell by 12%, from £805.6 million (47 deals) to £706 million (37 deals).
Approaching the 2024 Autumn Budget, led by Keir Starmer and Rachel Reeves, transactions above £5 million dropped by 16%, from 148 to 124 deals. In the £10 million-plus bracket, pre-Budget activity declined by 25%, from 51 to 38 transactions.
The study found that premature policy leaks and inconsistent messaging contributed to sales declines ranging from 5% to 17% in London’s property market. Three specific measures were identified as particularly damaging: George Osborne’s Stamp Duty hikes, the Truss government’s ‘mini-budget’, and Jeremy Hunt’s elimination of the non-dom tax status.