Recent data indicates that the typical cost of a new mortgage has surged by £788 annually since the onset of the conflict in Iran, reflecting significant shifts in the housing market. Homeowners securing a 25-year mortgage of £250,000 are now facing an average two-year fixed rate of 5.28%, a notable increase from previous figures. Financial information service Moneyfacts has highlighted these trends, illustrating how lenders have reacted to escalating geopolitical tensions since the US-Israel strikes began in late February.
Rising Rates and Market Withdrawal
The data reveals a stark reality for potential borrowers—many lenders have rescinded their most competitive mortgage offers, particularly those with interest rates below 4%. Major banks such as Barclays, HSBC, NatWest, Nationwide, and Santander have all withdrawn these attractive deals, making the mortgage landscape significantly less favourable.
Adam French, head of consumer finance at Moneyfacts, warned that borrowers should prepare for ongoing volatility in the financial markets, as global economic conditions remain precarious. “The current situation may lead to a wave of ‘Trumpflation’ stemming from actions taken in the US and Israel regarding Iran,” he noted.
For those considering a mortgage, the implications of fixed versus variable rates are crucial. Fixed-rate mortgages remain stable until the deal expires, typically within two or five years, while variable rates fluctuate in alignment with changes to the Bank of England’s base rate—set to be discussed in an upcoming meeting.
Escalating Costs: A Closer Look
The average two-year fixed mortgage rate has risen sharply from 4.83% at the beginning of March to 5.28%, marking the highest rate seen since last April. In a similar vein, the average five-year fixed rate has increased from 4.95% to 5.32%, signalling a £651 increase in costs for a typical mortgage in just two weeks.

This surge in mortgage rates coincides with a broader reduction in the availability of mortgage products, with 689 fewer options on the market since March 9, accounting for nearly 10% of all offerings. Although this contraction is less severe than the aftermath of the mini-budget delivered by former Chancellor Kwasi Kwarteng, which saw a quarter of mortgage products withdrawn, the current situation remains concerning for many prospective homeowners.
Implications for First-Time Buyers
The recent increase in mortgage costs and the withdrawal of sub-4% deals pose significant challenges for first-time buyers, a sentiment echoed by Mary-Lou Press, president of the National Association of Estate Agents (NAEA) Propertymark. “This shift underscores how sensitive mortgage rates are to broader economic uncertainty, complicating financial planning and potentially dampening activity in the housing market,” she stated.
Press further emphasised that even minor increases in mortgage rates can drastically affect borrowing capabilities and monthly repayments, highlighting the urgent need for stability and confidence within the market.
Expert Guidance Recommended
In light of the current turbulence, industry experts are advising borrowers to engage with mortgage advisers to navigate this complex landscape. Jo Jingree from Mortgage Confidence underscored the value of professional guidance, noting that many clients feel reassured after discussing their options with qualified brokers. “Expert support is crucial,” she asserted, “as advisers continuously monitor market changes and can provide timely advice.”

Why it Matters
The current surge in mortgage costs is indicative of broader economic instability and poses significant implications for both potential homeowners and the housing market at large. As rates climb and lenders withdraw competitive products, first-time buyers may find themselves increasingly sidelined, which could slow down market activity and further exacerbate the housing crisis. Understanding these dynamics is vital for both borrowers and policymakers as they navigate the uncertain terrain ahead.