Oxfordshire storage black hole

Hi, we're moving house to a new property and we can no longer store our caravan at our house ( covenants to the property ) we are moving to Upper Heyford near bicester and wondered if there are any storage facilities near by, ive looked on line and there seems to be a 20 mile black hole around us, i am sure there must be some storage facilities, just wondering if anyone has stored a caravan on the upper heyford camp as i can see a number of caravans on the site that dont move very often... in eager anticipation...