Susan Coulson says her son's life will be better because of new new purpose-built home

The $2 million facility, funded by Multicap Tasmania and TasBuild, will cater for people living with multiple disabilities.

Susan Coulson's son Steve Roetz will be moving into the facility when it is completed. She said it was exciting that a company was investing in housing specifically designed to support people like her son.

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"It is great, fabulous. It is much better because the house is designed for him and his wheelchair so he will be able get into the kitchen and help cook and make a mess - do whatever he likes really," Ms Coulson said.

"He can walk to most places from here, nothing is too far away. He can get into the kitchen and they can get him to cook meals and things, which obviously he won't eat, but he can help. And just do what normal people, typical people do."

Multicap Tasmania already operates three purpose-built facilities at Prospect, but two of those houses were built in the 1980s and were no longer fit for purpose.

Chief executive Nigel Hill said some of the residents at the older properties would be moving into the new facility.

He said the new house is much bigger and built to modern design standards required to support people with a physical disability.

"We see this as a really great opportunity to get a better type of housing for them as well as that the proximity to the city and the flatness is just an added bonus because it is a great location," Mr Hill said.

Andrew Wing is one of the residents who will be moving from a house at Prospect to the one being built at Dowling Street. Mr Wing has been at the Prospect home since he was 18 years old - he is now 46.

Mr Wing's dad Ian Wing said the new facility would be better for his son. He said he and his wife would be closer by and the levelness of the ground would help with access.

Andrew's mum Sandra added the bigger house would help with storing all of the equipment needed to take care of her son.

The facility is slated to be completed towards the end of April.