The village was badly affected by a tsunami in 2009 and Cyclone Evan in late 2012.
One stage of the project suggested the pre-school and the women's committee fale needed to be relocated further inland.
The National Institute of Water and Atmospheric Research in New Zealand, NIWA, was involved in the project.
NIWA principal scientist, Geoffroy Lamarche, believes the success of the project has been the engagement of the people of Sa'anapu.
Dr Lamarche said the next stage is to secure more funding.