TfL Ref: 4961-1718

Thank you for your email received by us on 21 March 2018 asking for a list of postcodes from addresses located on London’s red routes.

Your request has been considered in accordance with the requirements of the Freedom of Information (FOI) Act and our information access policy. I can confirm we hold some of the information you require.

The information you asked for is available on our website using the following link to the ‘Geographic boundary of the GLA road network’ located under the Roads sub-heading at: https://tfl.gov.uk/info-for/open-data-users/our-open-data. This data can then be matched against the postcodes from the Ordnance Survey website, which can be found through an online search tool.

In accordance with section 21 of the FOI Act, we are not obliged to supply you with a copy of the requested information as it is already accessible to you elsewhere.

If this is not the information you are looking for, or if you are unable to access it for some reason, please do not hesitate to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely

Jasmine Howard
FOI Case Officer
Information Governance
Transport For London