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About Us

Our Story

We are an intermediary only lender owned by The Property Business Group Limited. Keystone was created by brokers for brokers in 2007, with a sole purpose to provide specialist lending at a time that this wasn’t widely available.

Since its inception we have been through three different joint ventures but finally became a lender in our own right in 2018 and doubling in size over the years. 

Brokers are and always will be at the forefront of what we do and we pride ourselves on ensuring we are providing the best possible solutions and service. 

Our Story
Our Mission

Providing buy to let mortgages for professional landlords via intermediaries to support the UK housing market.

Our Vision

An extraordinary team, defined by the best individuals and the best departments of people, working in an environment that supports full transparency and an uncompromising commitment to our shared values.

Our Values

Resilience: Determination within our approach and perseverance

Adaptability: Embracing change

Integrity: Always doing the right thing

Excellence: Achieved through constant improvement and as a natural result of committing to our shared values


Megagrowth 2024 Logo Recognised Business Pfa 2023 24 Hc Logo Best Buy To Let Mortgage Lender 01 WMA 2023 Best Buy To Let Mortgage Lender WMA 2023 Best Specialist Lender MI Top Mortgage EMPLOYERS 2023 02 Diversity, Equity And Inclusion MI Top Mortgage EMPLOYERS 2023 02 Sustainable Programs MI Top Mortgage EMPLOYERS 2023 Bronze Innovation Bronze MI Top Mortgage EMPLOYERS 2023 Bronze Reputation Bronze WMA 2022 Best Buy To Let Mortgage Lender