Historic flooding in Dunedin on June 3 rendered the Hillside Rd wing uninhabitable and about 50 beds and residents were evacuated to other facilities around the city or to family members' homes.
Its 10 dementia unit residents returned in September and yesterday the last of its affected residents were welcomed home.
Radius Fulton facility manager Robyn Bowie said residents were happy to be back.
''Well over 85% of people have returned that were affected that day. They're really happy to come back to a brand-new facility.''
A formal reopening was held with residents, facility officials, the Fire Service and contractors involved in the rebuild present. Afternoon tea was provided.
Managing director Brien Cree said damage had been extensive and it was great finally to have the residents back.
''[Residents] love it. They're really happy,'' Mr Cree said.
''To have achieved such a massive rebuild in just a few months is a huge achievement. We actually think it's been remarkably quick.''
The flood water was about 300mm high and damaged wall linings, carpets, drapes and furniture, which all had to be replaced, he said.
The total cost of repairs and replacing damaged property was about $2million, most of which was covered by insurance.
Southern District Health Board member Richard Thomson said he was pleased to be at the celebration and paid tribute to everyone involved in getting the facility back up and running, especially the staff members.
