HS2 (4)

MQT on 2012-02-22
Session date: 
February 22, 2012
Question By: 
Navin Shah
Labour Group
Asked Of: 
The Mayor


Many residents are currently unable to sell their properties in Kensal Green because of the proposals for the tunnel being built 12 metres below their homes. HS2 would be nearest to the surface here then at any other part along the route. Please could you supply comparative data from HS1 where this was the case and what affect it had on the properties above the tunnels in relation to vibrations and noise?


Answer for HS2 (4)

Answer for HS2 (4)

Answered By: 
The Mayor

I have great sympathy for residents in Kensal Green. Whilst I am pleased to see that the Secretary of State has agreed to mitigate the effects of the line through west London, there are still several impacts on Londoners, including noise and vibration, which are yet to be resolved. My team are in active discussion with the DfT and HS2 about this.

For information, TfL has checked with HS2 Ltd and the tunnel runs around 25m under the Kensal Green area - not 12m as you quote. The alignment never gets as shallow as 12m under Londoners' homes. The experience of HS1 (which runs at a similar depth through east London) suggests that, where the route runs under Londoners, there have been very few complaints in relation to the noise / vibration effects of the high speed rail line.