Dartford Council have pledged £180,000 to pay for improvements at The Orchard Theatre.
Work begins later this month to install a new air-cooling system in the auditorium of the building in Home Gardens.
Customer toilets will also be upgraded.
The Orchard Theatre, Dartford
Council leader, Jeremy Kite, Leader of Dartford Borough Council, said: "Theatregoers love The Orchard but have asked for a cooler auditorium and I’m delighted to confirm this work will now go ahead."
Theatre director at The Orchard, Chris Glover, added: "The Council has been amazingly supportive, and with their encouragement, we have improved our programme of shows and events resulting in significant audience growth in recent years."
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