Developer API Documentation

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Any use of address data which is not specified in Royal Mail’s copyright notice or covered by one of the copyright exceptions will require an appropriate license.

General Informational API

Find information on the Energy Performance Certificates data set as a whole, such as the date of last update, with our API. [read more]

Domestic Energy Performance Certificates API

Search for and lookup domestic Energy Performance Certificates with our API. [read more]

Non-domestic Energy Performance Certificates API

Search for and lookup non-domestic Energy Performance Certificates with our API. [read more]

Display Energy Performance Certificates API

Search for and lookup display Energy Performance Certificates with our API. [read more]