Royal Hotel to be transformed.

When all is revealed in about a month's time, residents won't know the Royal Hotel building in William Street.

Bathurst Strata Management's Jill Small has worked with heritage consultants on the revamp after they were called in by the owners of the central business district landmark building which dates back to the earliest times of the city.

Bathurst Regional Council has approved the development application for the makeover and according to David Nicoll from Elders Nicoll and Ireland, it's an exciting project aimed at reinvigorating the historic building.

"A significant financial contribution of about $100,000 by the owners of the Royal Hotel will see both the internal and external areas of the heritage part of building transformed," he said.

"The colours that were there will be changed and it will be an exciting time when the scaffolding comes down to reveal the new look of the building.

"The project also goes hand-in-hand with the leasing of the cafe site in the Royal Hotel to Ash Lyons. It will be a major project to make full use of this prime hospitality destination in the CBD."

According to Mr Lyons the new venture will be named the Royal Society Cafe.

He said a soft opening will take place in November until all the plans for the changes pass through council.

"In the new year we will close for a short period to do the major refit," Mr Lyons said.

"We plan to operate as a cafe through the day and in the evening trade as a cocktail lounge and tappas bar.

"We want to create an atmosphere that will compliment the grandeur of the building."

Mr Nicoll said the first floor of the building, where a restaurant was located, is also undergoing significant work and will be offered for lease when the project comes to fruition.

"It should also be noted the existing business, Galleria, will be trading as normal from its shopfront location in the building," he said.