http://www.mailonsunday.co.uk/news/article-1160280/G20-summit--530-night-suites--8217-n-8217-bathtubs--8216-pillow-menu-8217-await-worlds-leading-finance-chiefs.html
The article states that, "Next week will see the world’s financial leaders flown in by helicopter to a ‘total exclusion zone’ of road blocks, CCTV cameras and razor-wire fences designed to keep out the assorted anarchists, environmentalists and anti-globalisation campaigners planning direct action"

 http://www.southlodgehotel.co.uk/EXCLUSIVE_HOTELS/the_hotel.aspx

South Lodge Hotel
Brighton Road
Lower Beeding
Horsham
West Sussex
RH13 6PS

Location is just about here.
 http://www.mapquest.co.uk/mq/maps/mapAddress.do?cboCountry=GB&txtAddress=long%20hill&txtPostcode=RH13%206PS