Biggin Hill Spotting Access

I just read an e-mail about Biggin Hill in which a security guard has indicated that soon access to the hangars area, where many of you spot aircraft at the airfield, will be restricted in the near future.

The gates which you must pass through will be only for those with the pass number, or with a swipe card.

Will this hinder spotting at Biggin Hill much? I’m not too familiar with the airfield. Where else can you spot from?