Hamsey Church, sitting on a prominent island in the Ouse flood plain, is interesting. Surprisingly large inside for a hamlet these days, from a time of intensive agriculture.
St Mary de Haura Church in the heart of Shoreham has a magnificent interior. 850 years of history.
It's a good bit older than that, nearly 920. . Apparently some of the hosues on Church St were built with flint from the collapsed west wing. My old cottage on the twitten had flints the size of footballs in the walls, which were 18" thick