Zauner Construction managing director Garry Zauner said it was now likely to be open for customers in September after early projections suggested it would open in December.

The last of the concrete structural work for the hotel, to be known as the Remington Orange, adjacent to the new Bloomfield Medical Centre, is underway before internal work can start.

"I was telling everyone it would be open by Christmas, but it is going better than that so we're hoping to get it open in September," he said.

Mr Zauner said the 4.5/5 star hotel would have 82 rooms with a variety of bed arrangements.

He said it would be valuable for patients at both the private hospital and the Orange public hospital to stay before and after surgery.

"You can't tie up a $1600-a-night private hospital bed or public hospital bed so we can put you into a medically-friendly hotel room right next to where your surgeon has operated on you," he said.

"You can get proper treatment and care in a supervised way without tying up valuable medical infrastructure."

He said it would also suit families from out of town who had a child in hospital so they could stay close by.

Mr Zauner also said it would be open to people who were simply visiting Orange for non-medical reasons.

"It's a typical hotel, 4.5-5 star, but it's medically-friendly. So if you have a medical purpose for hotel accommodation as well as the need for accommodation it does both roles," he said.

Mr Zauner said there would also be a 100-seat conference facility attached.

"[There is] a very obvious need that Orange doesn't have this really super high-quality, state-of-the-art [facility] with audio visual, communications all built into it," he said.

"We found a lot of medical conferences we're just going somewhere else that could here. Orange has a very strong medical population."

Mr Zauner said the next big project was to complete the fitting-out of the private hospital which will occupy two floors of the BMC.

Orange Surgery Centre director Dr Bill Mackie, whose group will move from McNamara Street into the BMC to operate the hospital, said they planned to open in the second half of the year.

Originally it was proposed the hospital might open around Easter.

"The process of each step of the way in terms of the design has probably taken a bit longer than we anticipated," Dr Mackie said.

Doctors will move into the specialist clinic at BMC in April.