A religious group has been accused of flouting planning rules by using its Norwich base for prayer without permission.
In 2011, the Norwich and Norfolk Muslim Association (NNMA) was granted permission to convert the former Queen Charlotte pub on Dereham Road into a community centre.
However, a condition of the planning permission was that the building could not be used for a variety of other purposes, including a museum, law court and a place of worship.
The NNMA is looking to change this condition and has applied to Norwich City Council to alter the wording, removing place of worship from the restricted uses.
However, a neighbour's response to the application alleges the building is already used for this purpose. It says: "Is this a retrospective application? The building is already being used as a place of worship.
Another response also suggests prayer is already carried out at the site, which was also once known as The Artful Dodger, raising concerns about early morning prayer.
A City Hall spokesman said when the application was originally submitted in 2011 it was not proposed the building be used as a place of worship.
While the site is registered as a community centre, signs at the building refer to parts of it as a mosque. Its website also includes a prayer schedule.
The NNMA has been approached for comment.