Document library

Please note that from the 4th March 2019 we will move from Key Facts to ESIS illustration. Our systems will be updated soon to change all KFI references to ESIS.


Here you can find all the documents you will need when dealing with Darlington Building Society from our lending criteria to application forms and also includes some helpful guides on how to use our online facilities. If you have any queries then you can contact our dedicated intermediary team on 01325 741004 or via email at

As part of our continued commitment to giving you and your clients the best possible experience, from now we will require a minimum amount of documentation to be provided before your case handler will begin the assessment of your case. All of the minimum documentation required will need to be provided within 10 working days of the application being submitted in order for your case to proceed.


To view the list of documentation you must provide for your application to be assessed, please click the below button to download our document guide:


Applicant Document Guide    

Printable Application forms

Please only use these forms where there are 2 or more applicants.

Mortgage Application Form (PDF)

Buy To Let Application Form (PDF)

Additional Borrowing Application Form (PDF)

Declarations & Direct Debits

Below are our declaration and direct debit forms which form part of the application pack should you need them.

Declaration Form (PDF)

Direct Debit Form (PDF)


Lending Criteria - Last Updated 19th July 2019

Here you can find our lending criteria which is a comprehensive document on how we approach lending and what our underwriters will follow when personally assessing an application.

Lending Criteria

Valuation Fees

The mortgage valuation is to assess whether or not the property you want to buy provides enough security to the Society for your mortgage. To get this information we may ask our valuer to visit the property and produce a report. The cost of the valuation depends on the purchase price of the property.

Valuation Fees

Administration Fees

See the section below to find out all the fees which apply when applying for a mortgage with us. Please note that you should check the specific details of the product as they may have fees associated with them.

See our Administration fees

The Darlington Intermediaries Online service


Here you can find the terms of business for the Darlington Intermediaries Online system.

Terms of business

Need to discuss your options?

If you have any queries regarding our mortgages, processes or our online system then our dedicated Intermediary Team are on hand to help.

You can call us on:

01325 741004

Or email us at

Our staff are available between:

8am and 6pm Monday to Friday

Our dedicated team are more than happy to help with any questions or queries