I'm trying to find some elevation data - either LiDAR, elevation or DTM - for the UK, specifically in Cheshire. I am a University student, so have access to gov data and other databases. I currently have the OS Terrain 5 which has a resolution of 5m. Ideally I need 1-2m or less. However, I can't find this.
Any ideas of whether this data is out there?
UPDATE: I have tried the government portal, however, my site is currently part of the country that has yet to be mapped. This is the government coverage for the area I am looking for (Brown layer). The green polygon is the area I need data for.