Construction delays on a major part of a £4m city centre refurbishment have been blamed on bad weather.
Intricate paving in the new St John's Square in Peterborough required a special cement that could not be laid in the heavy rain during the summer.
Construction will now continue into early November, city senior engineer Jeff Manners said.
"The underlying base must have the correct consistency to support the York stone paving setts," he said.
Pavers are creating ramps, steps and grassed terraces so that the square complements the west front of St John's Church.
"We know it's very frustrating to experience any delay in the completion of St John's Square," Mr Manners said.
"At this important stage we don't want any mistakes that could require remedial work later."