UK House Price Growth Halves as Mortgage Rates Climb Higher 2026

UK house price growth halved in September 2025, as rising mortgage interest rates and geopolitical tensions cooled buyer demand. According to Nationwide, the average British home price rose just 0.8% year on year to £274,251, down from 1.6% in August. On a monthly basis, prices dipped 0.2% after seasonal adjustments. It was the slowest annual pace since December 2024.

Why UK House Price Growth Is Slowing

The conflict in the Middle East has pushed energy costs higher, reigniting inflation fears. In response, financial markets now expect the Bank of England to raise interest rates further, which has driven up the market rates that underpin mortgage pricing. Robert Gardner, Nationwide’s chief economist, noted that “geopolitical tensions remain high” and are “fanning inflation concerns.”

As a result, mortgage costs have climbed. Moneyfacts reported that the average two-year fixed mortgage rate hit its highest level since July 2024, while five-year fixes also edged up. Higher borrowing costs are squeezing affordability, especially for first-time buyers.

Mortgage Rate Impact on Affordability

With mortgage rates rising, monthly repayments on a typical loan have increased significantly. For example, a £200,000 mortgage at 5.5% over 25 years costs about £1,228 per month, compared to £1,079 at 4.5%. This extra £149 monthly strain is forcing many buyers to delay or downsize their plans.

Key Data: UK House Prices and Mortgage Rates

What This Means for Homebuyers and Sellers

• Buyers: Higher mortgage rates reduce purchasing power. Consider fixing for longer or increasing your deposit.
• Sellers: Price realistically. Overpricing risks lengthy void periods as demand softens.
• Remortgagers: Lock in a new deal early to avoid falling onto expensive standard variable rates.
• Investors: Rental yields may improve as buying slows, but financing costs are rising.

Outlook: Will House Prices Fall Further?

Much depends on the trajectory of inflation and interest rates. If the Bank of England raises rates again, mortgage costs could climb further, dampening price growth. However, a severe shortage of homes for sale may provide a floor under prices. Nationwide expects the market to remain subdued in the near term, with modest single-digit growth possible if inflation eases.

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