Buckinghamshire Building Society has launched two shared ownership mortgage products to 90% loan-to-value.
Customers purchasing between 25% and 75% of a property can choose from a 2-year fix at 4.49% and a 2-year discount currently at 4.09%, with both rates reverting to 4.99% after the period.
Buckinghamshire is launching the products in partnership with mortgage broker Censeo Financial.
The society said shared ownership a growing market that will help first-time buyers get their foot on the housing ladder.
Andrew Craddock, chief executive of Buckinghamshire Building Society, said: “For those who lack a large deposit, access to a 90% LTV mortgage can really make the difference to them being able to achieve the goal of owning their own property.
“As a mutual building society our ethos is to support and help everyone in the local community and with house prices high in the south east this is a way for many people to get started.”