Complex case specialist Market Harborough Building Society has revised its UK and expat buy to let ranges, including those for high net worth borrowers.

It has increased its maximum loan size to £3m on buy to let, while up to 80% Loan To Value deals are now available on its lower-rate tier 2 products.

Head of mortgage distribution Iain Smith says: “We’ve built real momentum going into 2026, with a series of changes designed to make our mortgage solutions up to £5m even more accessible. 

“And we’re not taking our foot off the gas – giving more landlords and individual investors access to lowerpriced tier 2 products, broader 80% LTV availability, and increased choice with a higher maximum loan size.”

Market Harborough specialises in mortgage cases up to £5m, including clients with non-standard income, unusual property types, multigeneration/joint borrower sole proprietor, expats, borrowing into retirement and multilayered cases. 

The specialist lender’s range of mortgages are tiered based on complexity, with solutions for larger loans, expats, holiday let and buy to let, and bridging finance.