Originally built as a Corn Exchange by Mr. F. W. Keppel, the Lord of the Manor, at his own expense.He said that no toll or charge was to be made upon the grain sold in the exchange, wherever it came from.
The first stone of the new Corn Exchange was laid at Garstang on Thursday 16th October 1845, and the Exchange opened on Thursday 27th November 1845, despite the building being incomplete. But as it was raining it was decided that it could be used, and the opening was attended by many merchants and others.
The building was used to house the town fire engine after it ceased to be a Corn Exchange.
The building is still in use today, and now houses the Indoor Market. The original prison cell still remains and is now used as an office by the Market Superintendent.