Skypark – how’s it getting on?

Not too well if you read this story, where a large company preferred to go to the Hill Barton Business Park, further away from the M5 and a few miles extra driving on the A3052 road towards Sidmouth:

What is it about EDDC-owned Skypark that made Hill Barton more attractive, Owl wonders? Especially as developer St Modwen has gone to (expensive?) lengths to pretty it up, sacrificing 5 acres of rental opportunity land to do so: