We’re currently working on our BTL calculator in light of our recent criteria changes. We hope to have this back up and running soon but if you need any help in the meantime, please contact your BDM or the Helpdesk on 0330 123 1073.

Self build enquiry.

If you have a self build enquiry please send us details of your case, and we’ll be in touch to chat through how we can help.

Self build mortgage enquiry form.

If you have a self build case use our handy enquiry form below, which will give us all the information we need to make an initial assessment.

Please complete all fields so we can get the best possible understanding of your case.

Need to speak to us? Give our support team a call on 0330 123 1073 and we’ll be happy to help.

    • 1

      Intermediary Details

    • 2

      Applicant 1

    • 3

      Applicant 2

    • 4


    • 5

      Purchase Details

    • 6

      Other details

    • 7



    Intermediary Details

    Intermediary Details


    Applicant 1

    Income (employed)

    Income (self employed) (Last 2 years’ net profit or salary and dividends)



    Applicant 2

    Income (employed)

    Income (self employed) (Last 2 years’ net profit or salary and dividends)



    Expenditure during the build (monthly)

    Expenditure once the build is complete (estimates)




    Suffolk Building Society is Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority. Registered on the Financial Services Register, Firm Registration Number (FRN) 104875.

    Personal information held and processed by the Society will only be used in accordance with the terms of our Privacy Notice. A copy of the Privacy Policy is available or contact [email protected].


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