Syleham Mill has particular relevance to Brockdish; and Needham Mill is the next nearest. Follow these two links for some interesting information, including photographs and illustrations:
http://www.norfolkmills.co.uk/Watermills/syleham.html
http://www.norfolkmills.co.uk/Watermills/needham-notes.html
Other Norfolk Mills and additional, related topics can be explored from the main page of the website.
I’m going to correct myself! Luck’s Mill is (or was) the next nearest to Brockdish!
http://www.norfolkmills.co.uk/Watermills/lucks.html