Ground settlement
Settlement is the technical term given to the way the ground moves around a hole after it has been dug out. Building tunnels, shafts and basements can cause a small amount of movement to the ground.
We know how to limit the effects of this movement on buildings. In the majority of cases, settlement does not cause damage to properties. In some cases there may be small cracks in plaster, and in a few cases doors or windows may stick. In very rare instances, settlement can affect the structure of the building.
HS2’s commitments with regard to settlement are explained in Information Paper C3: Ground Settlement.
Reducing settlement
In recent years there have been a number of large projects that have involved tunnelling in built up areas. These include the Eurostar High Speed line, London Underground extensions and London’s Crossrail. These projects have assisted our understanding about how the ground can move when tunnels are built.
In building the new railway we are committed to respecting the people and communities we affect and being sensitive to their needs. This means we will try to create as little settlement as we can. We do this by controlling the way that excavation work is carried out and then, if necessary, treating the ground so that ground movement is reduced.
Settlement deeds
What is a settlement deed?
A settlement deed is a formal legal agreement between the property owner potentially affected by settlement and HS2. A property owner is someone who has a legal responsibility for the property, usually the freeholder or leaseholder.
It provides a legal undertaking from us. Property owners do not have to enter into a settlement deed unless you choose to as HS2 is responsible for any damage caused to your house as a result of our works.
Information for properties in Hillingdon
We’ve produced a frequently asked questions sheet that will cover answers to the most asked questions about this scheme.
- View or download Settlement Deeds in Hillingdon – Frequently Asked Questions, March 2021.
- View or download associated Settlement Deed 30m eligibility zone maps for Hillingdon.
Assurance and further information
HS2 Guide to Ground Settlement
This paper outlines how your property might be affected and what a settlement deed is and how to apply for one.
HS2 Ground Settlement – Information for Homeowners and Insurers
This paper provides further details for homeowners and insurers.
Ground movement near Little Missenden
Read our ground movement and sinkhole near Little Missenden – Frequently Asked Questions (FAQs)
Ground movement near Hyde Heath
Read our ground movement and sinkhole near Hyde Heath – Frequently Asked Questions (FAQs)
Ground movement near South Hyde
Read our ground movement and sinkhole near South Hyde – Frequently Asked Questions (FAQs)