The range includes eight fixed rate and discount products at 60 per cent and 75 per cent loan to value (LTV) with a term of either two or five years.
All products come with a free standard valuation, fee assist legals for remortgages and have no product or commitment fees.
Principality Building Society mortgage product manager Pablo Ivars Marchena said: “We’ve reviewed our range and have further improved the pricing on all of our holiday let products, including our recently launched discount holiday let range.
“We’ve been working closely with our broker partners to ensure we remain competitive, while helping them offer the best products to their clients.”