HS2 in Hillingdon
HS2 in your area
The railway enters Hillingdon in tunnel from Ealing to the east. It comes to the surface at West Ruislip, before crossing the Colne Valley lakes on a viaduct.
What we're building in Hillingdon
Northolt tunnel
The 8.4 miles (13.5km) Northolt tunnel under west London will carry passengers from Old Oak Common to West Ruislip.
Learn more about the Northolt tunnel or read about the HS2 works and developments taking place in Hillingdon
Northolt tunnel headhouses
Five headhouses will support the Northolt tunnel. One of these is located in Hillingdon.
A headhouse sits above shafts, which ventilate the tunnels for the railway and provide emergency access.
South Ruislip headhouse
The South Ruislip headhouse is between Ruislip Gardens and South Ruislip underground stations, close to Cineworld on Victoria Road in Hillingdon. The site is bounded to the south by the Chiltern line railway.
Part of the green corridor, it links new habitats, trees and shared spaces, helping nature and people thrive along the route.
Learn more about the South Ruislip headhouse or read about the HS2 works and developments taking place in Hillingdon
Copthall tunnel
Copthall tunnel sits between Harvil Road in the west and Breakspear Road South in the east.
Learn more about the Copthall tunnel or read about the HS2 works and developments taking place in Hillingdon
Sustainable placement areas
The areas between the HS2 tunnel portal near West Ruislip Underground station and the western end of Harvil Road are dedicated habitat creation sites. We’re creating over 40 hectares of new habitat, known as sustainable placement areas, around Copthall tunnel.
Learn more about the sustainable placement areas or read about the HS2 works and developments taking place in Hillingdon
Colne Valley viaduct
The Colne Valley viaduct stretches for more than 2 miles (3.4km). It crosses a series of lakes and waterways between Hillingdon and the M25.
Learn more about the Colne Valley viaduct or read about the HS2 works and developments taking place in Hillingdon
Managing impacts of construction
We're working to minimise disruption to local residents and businesses, reduce the impact on roads and transport, minimise our impact on the environment, and keep communities informed at every stage.
Current work in the area
Local area information
In autumn 2024, the government confirmed we’ll build HS2 to Euston. We’re now preparing to build the tunnel from Old Oak Common. We’ll start work on the tunnel shafts, headhouses and station approaches later.
We’re reviewing the whole HS2 programme as part of a major reset. This means we’re making sure we build everything in the right order. We’ll keep you updated on when work at the Euston approaches and Euston tunnel headhouses will restart.
Email newsletters
Subscribe to our regular updates about the project, including notifications of our upcoming works, how it’s being constructed and what we’re doing to make it less disruptive.