Wikipedia:Articles for deletion/List of windmills in Guernsey
It's a sub-list of the List of windmills, per . Of the mills in the Bailiwick of Guernsey, Vale Mill and Sark Windmill may just be notable enough to sustain articles, but it would be hard work getting either above start class. The subject is notable enough to sustain a list, per 
— User:Mjroots, 17:58, 8 March 2021 (UTC)
Stance: keep
Cited policy: WP:LSC||WP:LISTN (Wikipedia:Stand-alone lists)