James Latham Investor Digest

UK Long-Term Borrowing Costs at 28-Year High

UK Long-Term Borrowing Costs at 28-Year High

Key Questions

What is driving UK long-term borrowing costs to 28-year highs?

The Iran conflict has pushed UK gilt yields to their highest levels in 28 years, increasing pressure on government spending. Risks around potential closure of the Strait of Hormuz add further threats to energy prices and supply chains. Fed signals of possible additional rate hikes are compounding these global pressures.

How are US mortgage rates and housing data responding to the bond market turmoil?

US mortgage rates have risen to 6.51% amid the same bond market issues, with forecasts suggesting they will remain in the 6.0-6.4% range over the next year. US new home sales data has confirmed ongoing housing weakness. These trends align with broader market signals shifting focus toward recession risks rather than inflation.

What impact could these developments have on UK house prices and infrastructure plans?

UK house prices declined 0.6% in May, reflecting weaker demand amid higher borrowing costs that may also slow construction recovery. Rachel Reeves' infrastructure push offers a potential positive offset but faces political hurdles. Overall, the macro environment reinforces headwinds for the housing sector.

Iran conflict drives UK gilt yields to 28-year highs, pressuring government spending and potentially slowing construction recovery. US mortgage rates surged to 6.51% due to same bond turmoil, with predictions of 6.0-6.4% for next 12 months. Strait of Hormuz closure risk adds to energy and supply chain threats. Fed signals possible rate hikes further compound global rate pressures. US new home sales data confirms housing weakness. UK house prices fell 0.6% in May, adding to the negative demand outlook. A recent article highlights that market signals are now pointing to recession risk rather than inflation, reinforcing the macro headwind. Reeves' infrastructure push is a potential positive but faces political hurdles.

Sources (1)
Updated Jun 9, 2026