Information about the EPC mapping tool

The below video provides a live demonstration of the mapping tool including subtitles to explain the features. Please click on the video to begin and ensure that the quality is set to HD for the best viewing.

How to use the maps

The following sections provide further details about the maps. Click on a section to expand the text.

The mapping tool can include background data layers (polygons) to display additional data on the map. This could include data such as census statistics (e.g. fuel poverty indicators). The example layer shows areas eligible for the Carbon Saving Communities Obligation (CSCO) element of the Energy Companies Obligation (ECO). The polygons show the areas which are within the lowest 25% of the country in terms of the 2010 Indices of Multiple Deprivation (red = 0-15%, yellow = 15-25%).

Clicking on an individual point will display an information balloon containing data about the specific property. You may need to zoom in to make use of this feature. At times, Google will position multiple points in the same place. This may be because the addresses are ambiguous, so have been positioned at a postcode level rather than rooftop level or because Google cannot differentiate between individual property positions in some areas (particularly newly built homes)

The slider can be used to show only properties which have an EPC rating between two values. Drag the ends of the slider to set the maximum and minimum values. The current rating range is displayed above the slider.

The tick boxes can be used to filter the properties and are linked to fields within the EPC dataset. De-select the "All" tickbox and select specific boxes for each parameter to show only properties meeting the chosen criteria (e.g. the homes with cavity wall insulation).The number of results will be displayed in the green box at the top of the map.

The Filter by address search box can be used to show only properties where the address fields include certain words, e.g. seaching for "SO15" will show all properties with a postcode starting with SO15.

The address search bar can be used to show only results which fall within a specified radius of the chosen result.

The number of results associated with each filter is displayed in the top left corner of the map. This value updates each time the filter query is changed. This shows how many results are displayed at any time.

The feature to View Results shows a table with all of the properties associated with each query. It can be used to view the data associated with a query and updates in real-time when the filter parameters are changed. The datasets can be very large so this is restricted in terms of the maximum number of properties dependent on the size of the overall dataset.

The Download feature allows the filtered data to be downloaded onto a computer. Once the dataset has downloaded, it can be renamed with a suitable name. It is necessary to add a file type to the end of this name (e.g. ".csv", ".xlsx") to tell your computer which programme to use to view the data. .csv or .xlsx files can be viewed using Microsoft Excel, for example. Please note that this feature does not work when using the Internet Explorer browser due to its strict security settings. It works using recent versions of Google Chrome, Safari and Mozilla Firefox, and certain mobile browsers however.

Other information

The EPC data and positioning of addresses is subject to uncertainty and error. Please see the Google Geocoding webpages for details about the process. If you think that the data included in an EPC is incorrect, you can contact the person or company who created it for clarification. To find a copy of the original EPC, visit the EPC Register website owned by Landmark and navigate to the "Retrieve Report Using Property Address" link.

The maps can be customised to meet individual requirements such as background layers and filter parameters. Please contact us to discuss individual requirements.

If you wish to print or capture the maps in any way you must ensure you meet Google's terms of reuse. In general this means displaying the whole map as viewed in the browser (i.e. not a cropped version of it) including the copyright information. For full information see the Google Permissions page.

The maps are provided on a password-protected webpage to ensure that the data is not visible to members of the public. Please ensure that this password is not shared with anyone who is not allowed to view the data in line with the signed DCLG agreement. It is possible to change the password if required.


If you have any questions about the maps, please contact the Environment Centre (tEC).

Please visit the Example EPC map page if you would like to view an example map.

The mapping tool is owned by the Environment Centre (tEC). Some pages are protected and only visible to those who are allowed to view the EPC data provided by DCLG. Please do not share log in details with anyone as this will break the agreement with DCLG.

The site makes use of the open source Searchable Map Template by Derek Eder using Google Fusion Tables