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Privacy Policy

Bazalgette Tunnel Limited (trading name “Tideway”) ("We") are committed to protecting and respecting your privacy.

This policy (together with our terms of use and any other documents referred to in it) sets out the basis on which any personal data we collect from you, or that you provide to us, will be processed by us. Please read the following carefully to understand our views and practices regarding your personal data and how we will treat it. By visiting you are accepting and consenting to the practices described in this policy.

For the purpose of the Data Protection Act 2018 and the UK General Data Protection Regulation, the Privacy & Electronic Communications Regulations (PECR) and, at all times, any legislation that amends or replaces those laws in England and Wales (the “Data Protection Laws”), the data controller is Bazalgette Tunnel Limited whose registered office is at Blue Fin Building, 110 Southwark Street, London, SE1 0SU.

Information we may collect from you

We may collect personal information from you in the course of our business, including through your use of our website, when you contact or request information from us, when you engage with us or as a result of your relationship with one or more of our workers.

The personal information that we may process includes:

  • Basic information, such as your name, title, position, your employers name
  • Contact information such as postal address, email address and phone number(s)
  • Financial information, such as payment related information
  • Technical information, such as information from your visits to our website or applications or in relation to materials and communications we send to you electronically
  • Information you provide to us for the purposes of attending meetings and events, including access and dietary requirements
  • Identification and background information provided by you or collected as part of our business acceptance processes
  • Any other information relating to you which you may provide to us or we may collect for the purposes of keeping

How we obtain your personal information

Contacting us

You may contact us by email, phone, post, by filling in forms on our website or via social media.

If you contact us, we will use your personal information as necessary:

  • to look into and respond to your query, complaint or request or processing any complaints or applications under our compensation policies,
  • to maintain the book of reference of those with relevant interests in the land affected by the Thames Tideway Tunnel (“Tideway Project”) (and to keep it up to date)
  • for the purposes of serving any notices which may be required to be served in connection with the Tideway Project.

Registering to receive updates

We release updates on the Tideway Project and related matters from time to time. You may register to receive these updates directly by email or when in contact with us. By providing your contact details, including your email address, you are expressly consenting to receiving these updates. You can opt-out of receiving updates at any time by  emailing the “Unsubscribe” email address provided in our emails, or you can opt-out of receiving updates at any time by contacting [email protected]

Applying for a job and employment

We advertise our latest job vacancies on the website and may allow you to submit job applications online. To apply for a job, you may be asked to create an account and provide information we require to assess your application, including your CV, and contact details. We will use the information you provide to assess your suitability for employment, and to contact you as we process your application. At later stages, we will also request additional personal information, including documentary evidence of your right to work in the UK. The purpose of our request will be apparent at the point you provide your personal information and we only use that information for those purposes.

You will have some obligations under your Tideway employment contract to provide Tideway with data. In particular, you are required to report absences from work and may be required to provide information about disciplinary or other matters under the implied duty of good faith. You may also have to provide Tideway with data in order to exercise your statutory rights, such as in relation to statutory leave entitlements. Failing to provide the data may mean that you are unable to exercise your statutory rights.

Certain information, such as contact details, your right to work in the UK and payment details, have to be provided to enable Tideway to enter a contract of employment with you. If you do not provide certain information, this will hinder Tideway’s ability to administer the rights and obligations arising as a result of the employment relationship efficiently.

Meetings, events and seminars

We will collect and process personal information about you in relation to your attendance at our offices or at an event or seminar organised by Tideway. We will only process and use special categories or personal information about your dietary or access requirements in order to cater for your needs and to meet any other legal or regulatory obligations we may have. We may share your information with IT and other service providers, or business partners involved in organising or hosting the relevant event.  

Use of Tideway website

We may make interactive features available on our website to allow you to engage with the Tideway Project. For these features to work, you may be required to provide certain information, including your post code or geolocation.

Visiting our website

When you visit our website we may automatically collect the following information:

  • technical information, including the Internet protocol (IP) address used to connect your computer to the Internet, your login information, browser type and version, time zone setting, browser plug-in types and versions, operating system and platform;
  • information about your visit, including the full Uniform Resource Locators (URL) clickstream to, through and from our website (including date and time); products you viewed or searched for; page response times, download errors, length of visits to certain pages, page interaction information (such as scrolling, clicks, and mouse-overs), and methods used to browse away from the page.

We will use this information to improve the content of our website, to customise our website to your preferences and ensure that content from our website is presented in the most effective manner for you and for your device. 


What are cookies?

Cookies are small text files that are placed on your computer by websites that you visit. They are widely used in order to make websites work, or work more efficiently, as well as to provide information to the owners of the website. Tideway use cookies on their website. The information that we collect is anonymous and we do not share it with third parties. We use Google Analytics to do this.

These cookies tell us about how visitors use our website, including the number of visitors, where they have come to the website from and the pages they visited. This allows us to make sure the website is meeting your needs and help us understand what we could improve.

 Your web browser (e.g. Internet Explorer or Chrome) allows some control of cookies through browser settings. Have a look at for detailed information about what you can do to excise some control over cookie use, such as deleting cookies.

Our website uses cookies provided by Google Analytics to:

  • track visitor behaviour, including how visitors arrive on our website
  • manage and measure website performance
  • distinguish between visitors, and their sessions

These Google Analytics cookies stored on your browser may remain active for up to two years. You can block Google Analytics cookies from your browser at any time by visiting

Our website also uses cookies that are strictly necessary for the operation of our website or are functional in nature. These cookies allow us to:

  • administer our website and carry out internal operations, including troubleshooting, data analysis, testing, research, statistical and survey purposes
  • improve our website to ensure that content is presented in the most effective manner for you and for your computer
  • report aggregate information
  • keep our website safe and secure

You can block these cookies by activating the setting on your browser that allows you to refuse the setting of all or some cookies. However, if you use your browser settings to block all cookies (including essential cookies) you may not be able to access all or parts of our website. By continuing to use our website without changing your privacy settings, you are agreeing to our use of cookies.

You can manage your cookie settings for our website here.

Disclosure of your information

We may share your personal information with any member of our group, which means our subsidiaries, our ultimate holding company and its subsidiaries, as defined in section 1159 of the UK Companies Act 2006.

We may also share your personal information with certain trusted third parties in accordance with contractual arrangements in place with them including, IT service providers to Tideway. We may disclose your personal information to third parties if we are under a duty to disclose or share your personal data in order to process your application for employment or compensation, to comply with any legal or regulatory requirements.

If in the future we re-organise or transfer all or part of our business, we may need to transfer your information to new Tideway entities or to third parties through which the business of Tideway will be carried out.

Tideway may use social media sites such as Facebook, LinkedIn and Twitter. If you use these services, you should review their privacy policy for more information on how they deal with your personal information.

We do not sell, rent or otherwise make personal information commercially available to any third party, except with your prior permission.

How we protect your personal information

We use a variety of technical and organisational measures to help protect your personal information from unauthorised access, use, disclosure, alteration or destruction consistent with applicable data protection laws.

Where we store your personal information

The personal information that we collect from you may be transferred to, or stored at, a destination outside the UK. Where your personal information is transferred internationally, we will ensure that such transfers take place in accordance with the Data Protection Laws.

By providing your personal information to us, you acknowledge that we collect, use, transfer and store your personal information as described in this policy.

If you would like more information about how your personal information may be transferred, the safeguards adopted or where it is stored please contact us at [email protected].

How long we keep your information

Your personal information will be retained in accordance with our data retention policy which categorises all of the information held by Tideway and specifies the appropriate retention period for each category of data. The periods are based on the requirements of applicable Data Protection Laws.

We collect your information from you through the website or when you contact us or request information from us and also through the course of business we may have with you. We will only retain your information for as long as is necessary to fulfil the purpose for which the information is collected and used, taking into legal and regulatory compliance requirements to retain the information for a minimum period, limitation periods for taking legal action, good practice and Tideway’s business purposes.

Your rights

The Data Protection Laws provide certain rights for data subjects. You may be entitled to request access to information we hold about you, or to request that your information is erased, that its processing is restricted, or that any inaccurate information we hold in relation to you is rectified. You also have the right to object to the processing of your data and, in some circumstances, you may have the right to receive the information we hold about you in a machine-readable format. You can exercise these rights at any time by contacting us at [email protected] or by writing to: The Legal Team, Bazalgette Tunnel Limited, Blue Fin Building, 110 Southwark Street, London, SE1 0SU. We have a subject access request form which you are not required to use but may assist you. All requests received will be handled in accordance with the Data Protection Laws and our legal obligations.

You may also have the right to lodge a complaint in relation to Tideway’s processing of your personal data with a local supervisory authority.

If you object to the processing of your personal information, or if you have provided your consent to processing and you later choose to withdraw it, we will respect that choice in accordance with our legal obligations. Your objection (or withdrawal of any previously given consent) could mean that we are unable to perform the actions necessary to achieve the purposes set out in this policy. Also, even after you have chosen to withdraw your consent we may be able to continue to process your personal information to the extent required or otherwise permitted by law.

Third party websites

Our website may, from time to time, contain links to and from the websites of our partner networks, advertisers and affiliates. If you follow a link to any of these websites, please note that these websites have their own privacy policies and that we do not accept any responsibility or liability for these policies. Please check these policies before you submit any personal data to these websites.

Changes to our privacy policy

Any changes we may make to our privacy policy in the future will be posted on this page and, where appropriate, notified to you by e-mail. Please check back frequently to see any updates or changes to our privacy policy.


Questions, comments and requests regarding this privacy policy are welcomed and should be addressed to [email protected] or by writing to The Legal Team, Bazalgette Tunnel Limited, Blue Fin Building, 110 Southwark Street, London, SE1 0SU.