My band and I rent an old bomb shelter in Lancashire, we rent a small underground unit (15ft x 20ft) for £48 per week and we can have it from 5pm till 5am!!! Look at small Industrial estates in small towns. We have all electric, heating and 24hr security thrown in too, also able to use it everyday. We even showed up a on Christmas day a few years back and they let us in, bargain!