LondonUK house prices fell a second straight month.
Halifax said Iran war energy costs pushed Britain’s 2-year mortgage rates nearly 1 point higher since March.
Halifax, Britain’s largest mortgage lender, halved its 2026 house price forecast to 0.4% annual growth.
Sources: The Guardian
WHY UK MORTGAGES MOVE FAST
Unlike the US 30-year fixed, most UK mortgages reset every 2-5 years. Roughly 1.6 million households roll onto new rates each year, so a swap-rate move in March hits monthly budgets within weeks, not decades.
THE ENERGY-TO-MORTGAGE PIPELINE
An oil shock raises headline inflation; the Bank of England responds by holding rates higher for longer; gilt yields rise; swap rates rise; mortgage offers reprice. The chain runs from a tanker in Hormuz to a kitchen-table affordability calculation in Manchester.
THE 2022 PRECEDENT
The Truss mini-budget in September 2022 spiked 2-year swaps by ~150 bps in a fortnight. Mortgage offers were withdrawn overnight; transaction volumes collapsed for two quarters before stabilising. The lesson: housing freezes on rate velocity, not rate level.
WHY HALIFAX MATTERS
Halifax is the mortgage arm of Lloyds Banking Group, the UK's largest lender by mortgage book. Its monthly house price index draws from its own approval data — making the forecast revision a statement about what the bank itself is willing to lend against.
THE 1973 ECHO
The OPEC oil embargo of 1973 ended Britain's postwar housing boom. House prices fell in real terms for nearly a decade as inflation, rate hikes, and the secondary banking crisis of 1973-75 compounded. Energy shocks have always been housing shocks in the UK — the transmission mechanism is the same now as then.