Dudley Council says it plans to start proceedings to take control of the site of a planned mosque in the town in the absence of detailed proposals.
There is currently outline planning permission for a mosque on the site but no firm plans have been submitted.
The council has an existing agreement to reclaim the site from the Dudley Muslim Association if no new place of worship is built.
An association spokesman said they were in discussion with the council.
They still wanted to go ahead with a new mosque in due course, the spokesman added.
Outline planning permission ends in July next year.
If no firm plans are approved by then, the council says it intends to buy the site back.
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