A health expert believes New Zealand won't prosper until our homes become healthier.
The New Zealand College of Public Health Medicine believes our country could be facing a health epidemic if living conditions don't improve.
They believe we could have a repeat of the mid 90's, when a major meningococcal outbreak hit the country, if overcrowding and issues like mould aren't addressed.
President of the New Zealand College of Public Health Medicine, Julia Peters, says as a country we need to ask why we have this problem.
"For our population to be healthy, and to prosper, people need to have affordable and healthy housing, and I think that we need to, as a country, be really looking at how we're going to make this happen."