Also, from the article you linked:

Parish council chairman Bryan Sumner said: “Every time we came up with a final draft, the county council came along with something else they wanted done.”
After the meeting he added: “It has taken two-and-a-half years since the first approval."

Yes Mr Sumner, the fort has only been there 2,000 years, so clearly it is essential that everyone rushes into doing irrepairable damage to it in as short a time as possible... :-)