Bengeworth Road

**Update – April 2021***

At the end of March 2021 we withdrew our application for a Certificate of Lawful Development for the above ground works at Bengeworth Road.

We took this action following considerable engagement with Lambeth Council, the purpose of which was to find a positive way forward that both ensured we deliver this vital infrastructure to keep the lights on in South London, but also put in place measures and mitigations to meet the concerns of local residents.

By withdrawing the current application we have given ourselves and Lambeth time to take a more comprehensive look at all the factors that have changed since our application last year and what should be in place to reflect these changes. Over the coming weeks and months we will work closely with the Council to look at all factors associated with the works and provide a transparent way forward that brings residents into the process.

While these conversations are taking place, in the short term, we have paused our shaft construction works, though site preparation works continue.

We held a Community Liaison Group (CLG) meeting on 27 April 2021 to provide more details about our new consenting strategy.

**Screening Assessment Update – May 2021**

At the end of April 2021 we resubmitted our screening assessment to Lambeth Council with our updated plans for works at Bengeworth Road. There will now be a 21-day consultation period where you can share your comments on the portal. Please head to the  Planning Portal and search 21/01789/EIASCR to find the assessment.

Please note that any questions about the Screening Assessment should be directed to the Council during the consultation period. If you have any trouble accessing the link, we will do our best to support you with this. We will not hold any CLG meetings during the 21-day consultation period which will be led by the council, but we will look to hold the next CLG after the consultation process has ended.

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

Current working hours:

  • Current working hours on site are Monday-Friday 8am to 6pm
  • There is currently no Saturday work taking place, although this may change in the future

Future working hours:

For works above ground, our usual working hours will be Monday to Friday 8am to 6pm and Saturday 8am to 1pm. 24-hour working, seven days a week, will be required while we build the shaft and carry out tunnelling works over the course of summer 2021 – summer 2022. During the night, our works will largely take place below ground.

Construction traffic

Our original figures that we shared with residents were based on the worst-case scenario to ensure that we have 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 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
  • Traffic marshals will be prominent at all times during construction operations to control construction vehicle movements, in order to maintain safety of residents and other road users, in particular cyclists using Cambria Road. At the moment we are considering traffic marshals at the junction of Bengeworth Road and Cambria Road and at the junction of Southwell Road and Cambria Road
  • Minimise any impact to cycle routes by working with the Council, as part of this we will install appropriate road signs warning cyclists of the site access and of construction HGVs turning in and out of the site


  • March – June 2020: Initial survey works took place
  • August – October 2020: Ground investigation works took place
  • First half of 2021: Preperatory works and site set up
  • Second half of 2021: Tunnelling works begin
  • 2022: Tunnelling works complete
  • 2023 – 2025: Substation and headhouse construction
  • 2026: Bengeworth road site development 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.

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