The youngest windmills in the UK

I was recently asked what was the last (flour) windmill built in the UK, for which the answer rather depends on exactly how you define your terms. Rather than give a definitive answer, I think it's worth giving a selection of the "youngest" windmills (some since demolished), from which you can choose the one that best fits your own personal definition!

• Enham, Hampshire - a reduced scale post mill, with a small set of millstones, completed 2012
• South Walsham, Norfolk - a totally new full sized post mill under construction since 1994 by millwright Richard Seago
• Cann Mill, Dorset - a Portuguese style windmill built in 1970 as part of a commercial flour mill, but taken down in 2008 to allow the watermill it was on the roof of to be enlarged
• St Margaret's Bay, Kent - built by millwrights in 1929, this looks like a traditional wooden smock mill, but rather than being used for flour production, it was used to fill a swimming pool
• Much Hadham, Hertfordshire - an 8-sailer built by Sauderson's of Louth in 1893/4
• Cockfield, Suffolk - built 1891
• Thurleigh, Bedfordshire - built 1890
• Downfield Mill, Soham, Cambridgeshire - rebuilt from smock to tower 1890
• Patcham, Sussex - built 1885
• New Mill, Swingfield, Kent - built 1885
• Cholesbury, Bucks - rebuilt from smock to tower mill 1884
• Wetheringsett, Suffolk - built 1883
• Trusthorpe, Lincs built 1881
• Waltham, Lincs - built 1879
• 'James and Sarah', Riddings, Derby - huge twin tower mills built 1877

I've been somewhat selective especially with 20th century windmills, where there are a number of other reduced scale mills I could have included. Also some full scale rebuilds from often fragmentary remains are in effect completely new mills - though there is a recent trend to design such rebuilds for residential rather milling use - with perhaps a token inclusion of the possibility of generating some electricity from the resultant structure.

For comparison, the last (commercially) new built flourmills in Holland were Vragender and Afferden, both built in 1957/1958. The United States has quite a number of 20th century windmills - including the replica post mill at Colonial Williamsburg, plus its various "clones", and a number of other Dutch designed and built working flour mills.

My thanks to the Windmill Hoppers group on Facebook, to whom the same question was posed, for coming up with a more comprehensive list than I did on my own.