A bid to develop the Beacon museum in Whitehaven has been submitted by Copeland Borough Council.
The development would cost an estimated £1.2 million and councillors say it would be beneficial to the economy in West Cumbria.
"The Beacon is one of Copeland's most valuable assets and has great potential to bring more visitors to this part of West Cumbria.
“This is a real opportunity for Whitehaven to be able to hold more events and attract more interest. It's also important to build capacity which will in turn generate more income so that the Beacon becomes self-sustainable for the long term.
"It’s a venue with amazing views and exhibits, so there is fantastic scope to maximise commercial and national exhibitions, offer better opportunities for hire space and hold bigger, more prestigious events.”