Bengeworth Road

**Update – September 2021***

At the end of April 2021, we submitted our screening assessment to Lambeth Council with our updated plans for works at Bengeworth Road. This assessment incorporated several new measures to reduce the impact of our essential works on the local community.

We have now had a decision from Lambeth Council, a negative screening. All the documents associated with the screening assessment including the Council’s decision can be found here. This means that the Council has reviewed the information we provided and assessed that we do not need to provide an Environmental Impact Assessment; and we can therefore continue with our permanent works. As part of our screening, we have also signed a legal agreement with Lambeth Council, known as Unilateral Undertaking, that allows Lambeth to monitor our work to make sure it stays in line with the screening assessment.

Now we have received this decision from the council, over the coming months we will be continuing with sinking the shaft for the tunnel. Our agreed working hours remain 8am – 6pm Monday to Friday and 8am – 1pm Saturday.

We are, of course, still here to answer any other questions you may have about London Power Tunnels or Bengeworth Road more generally at [email protected] and 0800 783 2855.


To deliver the LPT project, we need to provide a new connection for UK Power Network’s existing site on Bengeworth Road in Lambeth, South London – you may recall we did some initial survey works last summer to test ground conditions at the site in preparation for this.

We have a legal obligation to connect companies like UK Power Networks to our network and to achieve this we need to build a shaft at Bengeworth Road to connect to the main tunnel. In early 2021 we will need to prepare the site for the tunnelling works which are due to start in the second half of 2021, and once complete (likely in 2022), we will build a new substation and headhouse on the site in 2023 and 2024. All works are essential to help meet electricity demand in Central and South London.

By doing this work now as part of the tunnelling project, overall disruption will be minimised as UK Power Networks will not need to replace their existing cables which currently run beneath the local road network. We plan to build the substation, head house and associated works under permitted development rights as the existing site is operational and we have been working closely with the London Borough of Lambeth to share details of our plans. Please be assured we will do all we can to minimise disruption and keep you informed.

Working hours

In line with the negative screening assessment mentioned above, our current working hours are:

  • Monday-Friday 8am to 6pm
  • Saturday 8am to 1pm

We anticipate that we will be working regularly on Saturdays for the next 3-4 months, subject to progress on previous days. We will try to keep you informed of any Saturday works if possible.

Construction traffic

The original figures shared with residents were based on the worst-case scenario to ensure that we had covered every eventuality. During the shaft sinking, we now predict that the average daily movements are not likely to exceed 18 vehicles (36 movements) per day compared to our original estimate which was 40 vehicles (80 movements). The maximum peak number potentially remains the same (60 HGVs and 120 movements) but would be limited to a couple of days work where we need concrete delivered to site to line the base of the shaft. We will keep residents updated on when this will be in due course. We know that this will be a change for local residents and will do everything we can to minimise disruption:

  • We will use Kings College Hospital (KCH) Business Park for all HGV access to site, unless a hospital emergency means it is not available to use.
  • We will avoid construction vehicles entering and leaving the site at peak times.
  • Only vehicles notified in advance will be allowed on to site. All construction and managerial parking will be provided onsite to avoid any queuing or parking on residential streets.


  • August 2021 – Shaft works began
  • October 2021 – Welfare and office accommodation block installed​
  • January 2022 – Shaft works complete
  • May 2022 – Below ground works complete
  • Summer 2022 – Engage with local residents on substation and headhouse design
  • 2023 – 2025 – Substation and headhouse construction
  • 2026 – Work complete

Community relations

We are committed to keeping the local community informed about our plans. Over December 2020 and January 2021 we held three public engagement events with local residents. The minutes of the January meeting can be found here and the presentation can be found here.

Following this, we set up a Community Liaison Group (CLG) to work closely with residents and provide them with an opportunity to have any questions answered by the project team. We held our first CLG meeting on 16 February 2021, which was well attending by local residents and stakeholders. The minutes of the meeting are available here, while answers to all questions submitted at the session are available here. The presentation shared during the meeting can be found here.

The second CLG meeting was held on 16 March 2021. The minutes of the meeting are available here, and you can view the presentation shared during the meeting here. Answers to all questions submitted during the meeting are available here.

Our third CLG meeting was held on 27 April 2021. The minutes of the meeting are available here, and you can view the presentation shared during the meeting here. Answers to all questions submitted during the meeting are available here.

We held the fourth CLG meeting on 7 September 2021. The minutes of the meeting are available here, and you can view the presentation shared during the meeting here. Answers to all questions submitted during the meeting are available here.

Get in touch

If you would like to discuss the project in greater detail or have any questions, please contact our community relations team using the details below:

Call our Freephone helpline number: 0800 783 2855 (lines open 9am to 5pm, Monday to Friday)

Email: [email protected]

Follow us on Twitter: @NGLPT