Newcastle Building Society has launched a new mortgage proposition through its intermediary arm, aimed at high-earning borrowers seeking greater flexibility in high-value lending.
Branded as Enhanced+, the product offers loan-to-income (LTI) ratios of up to 6 times for individuals or joint applicants earning a combined minimum of £75,000 annually.
The proposition, which goes live this week, is designed to support borrowers looking to secure up to 90% loan-to-value (LTV) on loans between £450,000 and £3.5 million.
With a focus on bespoke underwriting, Enhanced+ is intended to appeal to clients with complex or non-standard income profiles, such as those receiving restricted share units or income via self-invested personal pensions (SIPPs). It also includes direct access to the society’s underwriters, enabling brokers to discuss and place more nuanced cases.

Francesco Di Pietro, head of intermediary mortgages at Newcastle Building Society, said: “We know brokers increasingly need a truly flexible, high‑value lending solution for their clients. Enhanced+ gives brokers the confidence to place high net‑worth and complex-income cases.
“By raising Loan to Income multiples up to 6x, lowering our minimum loan threshold and underwriting non‑standard incomes, we’re removing barriers for borrowers who might otherwise struggle to secure the funding they need.”
The maximum 6x LTI is available to employed applicants, while the self-employed can access up to 5.5x. Interest-only lending is also permitted, up to a maximum of 80% LTV, or 85% on a part-and-part basis, provided acceptable repayment vehicles are in place. For loans up to £1 million, borrowing at 90% LTV is available.
The lender described Enhanced+ as a response to a growing market demand for more adaptable solutions, particularly among affluent clients whose income sources may not conform to traditional affordability metrics.