Occupants of nearly 300 council properties in the Balnagask area of Aberdeen are to be rehomed after reinforced autoclaved aerated concrete (RAAC) was found in them.
The material, a cheap version of concrete, was widely used between the 1950s and 1990s.
It's said to have a lifespan of around 30 years, but concerns have arisen after the Health and Safety Executive said it may "collapse with little or no notice".
It was found in around 500 properties in the area last year, including 364 council-owned homes.
It's understood that 65 of them are currently unoccupied.
Councillor Miranda Radley, Convener of the Communities, Housing and Public Protection Committee, said: "This is an incredibly difficult situation for everyone living in a RAAC affected property, but the Council will be doing everything we can to support our tenants during this hugely challenging time.
"These are people's homes and we need to ensure we support our tenants, but also engage with owners and privately rented tenants, to keep them informed on this matter."
The committee agreed to set aside an initial £3m to cover the rehoming programme.