Information for landowners

Before we can submit our application for development consent, we need to understand who has a legal interest in the land in and around the areas being considered as part of the proposals for Sea Link.

Under the Planning Act (2008), we are required identify persons with an interest in land for the purposes of consultation and notification, this process is known as ‘diligent inquiry’. We have appointed the land referencing firm, TerraQuest, to assist with diligent inquiry by identifying those land interests and contacting individuals to confirm their interest in the land.

We have also appointed the land agency firm, Dalcour Maclaren, to assist in liaising with landowners and occupiers to arrange access for surveys to be carried out along the route.

You are entitled to appoint a suitably qualified representative to act on your behalf where we are seeking rights to carry out works on your property. An agent/surveyor will advise you on the process, your rights and will handle any compensation claims on your behalf. We will reimburse you for professional fees reasonably incurred in respect of all claims and advice on legal agreements in connection with associated land rights. More information on this can be found within our Guidance on Land Rights and Payment of Surveyors’ Fees documents. 

The survey information will be published either as part of our Preliminary Environmental  Information at our next stage of consultation or to support our application for a development consent order. For more information about our ongoing surveys, please visit our dedicated Surveys page. 

If you believe your land or property may be affected but have not been contacted by us, please email [email protected] in the first instance. 

Detailed plans and guides

As part of our statutory consultation, we produced a set of detailed plans which show the infrastructure proposed within Sea Link's draft order limits. These limits form the current anticipated boundary of the entire area within which Sea Link could take place, including temporary and permanent works, as well as the works to the existing infrastructure.

The limits of deviation lie within the draft order limits. Limits of deviation are a common feature of linear infrastructure projects. They provide the necessary flexibility when constructing the authorised development, reducing the risk that the proposed Project as approved cannot later be implemented for unforeseen engineering or environmental reasons. For example, previously unidentified poor ground conditions may require us to place infrastructure in a different location than originally anticipated within the limits of deviation. Our limits of deviation allow for the co-location of infrastructure with other projects if necessary.

You can view detailed plans for Sea Link by using the interactive draft order limits plans below. To view detailed plans for the section you are interested in, simply click/tap of the area of the map you wish to view.

Best practice guides

To help explain how Sea Link would be built, we have produced 'Best Practice' guides which show how National Grid constructs overhead lines and underground cables. You can view these guides by following the links below.

Whilst National Grid will adopt the best practice as set out in these documents wherever it is possible and reasonably practical, there will be some instances where we cannot do this. You can find information about the specifics of constructing Sea Link in the Preliminary Environmental Information Report, which is available in our Document library.

Construction best practice for overhead line installation

Construction best practice for underground cable installation