Details of a new mosque proposed on the old Boultham Dairy site in Lincoln will go before planners today.
Lincoln City Council's planning committee will discuss the development having given outline permission for it to be built last year.
Opponents say the mosque will cause parking and travel problems.
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Ahead of the conference, calls are growing for Midlands regions to have their own devolved powers to match those on offer to Scotland.
After a cool start, Sunday looks set to be a dry and bright day, with sunny spells.
Mainly dry with clear spells but possibly one or two light showers near coasts overnight, remaining largely dry on Sunday.