Plans for a £738,000 redevelopment of Theatr Colwyn in Colwyn Bay are being presented to the public.
Work will be carried out on the 125-year-old venue over the winter months.
Money will be spent moving the bar and creating a new box office, office space and community room. There will also be disabled access to all floors.
In August actor Terry Jones of Monty Python fame, who is from the town, said he was "so happy" to hear of the funding.
"I am delighted that finally we can look forward to the first stage of refurbishment of the theatre," said Coun Alice Robinson, the chair of Theatr Colwyn's joint management committee.
As well as providing better access for people with disabilities, the changes will include a new booking office, toilets and an open cafe/bar on the ground floor.
Coun Goronwy Edwards, Conwy council's cabinet member for communities, said: "This project will reaffirm the theatre's place in the heart of the community by providing better access and facilities for local people"
Mayor Coun Hazel Meredith has a personal interest in the venue.
"My family has been involved in performances at the theatre for many years and it is a great platform to introduce young people to performing," she said.
Sarah Ecob, general manager, added: "As custodians of this charming and much-loved Victorian venue, we are very much looking forward to giving the building the care and attention it needs, and to bringing the front-of-house facilities up-to-date to meet the needs of our customers."
The theatre will be closed whilst the work is being carried out, and is due to reopen in the spring of 2011.
Ms Ecob will be giving a presentation on the plans for members of the public at 1430 and 1930 on Friday, 8 October.