Aberdeen looks about the same rental costs as Hitchin, London is far more expensive.
49 1 bed flats under £800/month in Aberdeen:
http://www.rightmove.co.uk/property-to-rent/find.html?locationIdentifier=REGION^4&maxPrice=800&minBedrooms=1&maxBedrooms=1&displayPropertyType=flats&oldDisplayPropertyType=flats&googleAnalyticsChannel=renting
184 in all of London but most of those are flat shares:
http://www.rightmove.co.uk/property...ertyType=flats&googleAnalyticsChannel=renting
Have you noticed how tiny the flats are in Aberdeen?