About £600,000 of public cash will be spent on improving Sheffield Town Hall.
Repairs to leaking roofs, lift maintenance, electrical safety and exterior stone work began last year, with the remainder being carried out over the next 12 months.
The city council has come clean over the costings after coming under fire from opposition leaders for the costly refurbishment.
A report previously put the figure in the region of £2 million, but this has been put down to an ‘error’ from officers.
Council chief executive John Mothersole has written to Sheffield Hallam MP Nick Clegg to clarify the situation.
Mr Mothersole said: “The council is spending some money on the maintenance of the town hall but this is because it requires such maintenance to ensure it is kept in reasonable condition and continues to be safe.
“It is also a listed building and this enables us to boost income as it is increasingly used for weddings, civil ceremonies and birth registration.
“There are no expensive fittings - it is about basic maintenance.
“It is true a cabinet report based upon existing capital strategy referred to £2 million expenditure but this was an overarching title.”