The Revolution bar on Park Street in Lincoln is set for a £170,000 revamp during a week in August.
The works will begin on Sunday, August 3 and should be completed by August 9, when a bar will host a relaunch party.
The new-look bar will be kitted out with a central open-plan lounge and dining space, new party booths and a private events space to the rear of the venue.
Samina Hussain, Revolutions Lincoln General Manager, said: “We are looking forward to welcoming back existing customers to celebrate the new-look venue, and we hope the changes we have made will also encourage new custom.
“We have received an extensive investment which is really exciting for us, and will be really evident when you see the finished product.”
The bar currently has 35 staff after recruiting 10 recently, and will look to recruit for further positions in September.