I'm in Birmingham. There isn't much dev. work in the West Midlands in my experience. Most of our work comes from London and further afield. Rates depend on the nature of the work, but 2-4x what you quote is a reasonable range. (I work primarily with Scala. I don't do paid work 5 days a week as I have longer term projects to work on.)

Yeah that is primarily London, i live in Edinburgh where theres next to no work but typically work in London. Although i've had the odd contract up here or remote for decent money. I'm flexible down to £350 a day if its an interesting project to me.