The majority of land on all three properties be converted to commercial forests.
Waitaki District mayor Gary Kircher said it's gutting more farm land is being turned into forest in his region.
"It just keeps happening and I think there's going to be more and more of this happening as people and companies around the world look to offset the carbon emissions.
"But we are losing good productive land to forests that don't create jobs."
He said the council had received complaints about a carbon forestry company operating in the area not following it's resource consent by planting outside designated areas and in waterways.
"The complaints came through just before lockdown so we are waiting until we are able to get onto the property to investigate and if needed we will prosecute.
"That's certainly our stance, with these companies coming in and buying up farm land and planting it into forestry - they need to follow the rules."
Meanwhile a UK company has bought a 230 hectare forestry block in Marlborough and US company has picked-up over 40 hectares of recently harvested land in the Waimate District.
- RNZ