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Address Validation

What Is Address Validation and How Does It Work?

Updated 21 Jun 2021

Address Validation

Address validation is a way to capture full addresses through a drop down either on your website or internal data tools. They will be validated on a database.

There are two solutions you can integrate via our Postcode Lookup and Address Finder libraries.

Postcode Lookup

Enter your postcode and find your address from the dropdown list. The address fields will be then be populated with the complete address.

Postcode Lookup

Address Finder

Start typing in any part of your address and the details will autofill in real-time.

Address Finder

Key Benefits


Validating customer addresses will reduce costs by avoiding failed shipments or undeliverable orders.

Accurate and Up-to-Date Data

Royal Mail updates the addresses daily in their address management system, known as the Postcode Address File (PAF). There are over 1.7 million postcodes recorded in PAF and 30 million delivery points.

Improve Quality of Data

Remain consistent with your customer data by ensuring addresses are in a recognised format. Address validation systems ensure address standardisation across platforms. View our UK Clear Addressing repository on correctly formatted addresses recognised by Royal Mail.

You can integrate address validation software to your internal data tools and authorise your employees access. They will be able to validate addresses easily whilst on the phone with a customer, and avoid costly errors.

Customer Segmentation

By gathering correct client addresses you will be able to improve customer service and enhance targeted marketing initiatives.

Customer Satisfaction

Your customers will have a great user experience when they can complete online address forms quickly. This will help reduce your customer bounce rate and increase conversions.