Council and insurance company staff will work through each property to ascertain whether it can be lived in and what work needs to be done to make it safe for residents to return.
Many of the homes are owned by Kainga Ora who are working hard to help occupants.
"Our customers are our focus," said Kāinga Ora regional director Julia Campbell.
"We have teams in or travelling to Westport to provide immediate support to them and assess the impact of the flooding.
"This will help us determine the extent of the damage to the Kāinga Ora homes in Westport."
Campbell said welfare centres have provided emergency accommodation so far.
"And we will work with our customers to find ongoing housing options that best meet their needs.
"We will continue to work with local agencies and MSD to provide continued support to the community.
"Kāinga Ora maintenance partners will also be visiting our homes in the area to assess the damage and work that needs to be done."