Student or Learner
Policy XYZ deals with new larger-scale developments, defined as developments comprising 10 or more dwellings, or taking place in sites of more than 0.5 hectares if the number of dwellings is not given. Those developments are expected to adhere to principles of sustainable energy design. They are expected to pursue first-energy savings through building design and energy-efficient technologies, and to meet the remaining demand by utilising renewable energy. Only as a last resource, they are permitted to use fossil fuels or grid electricity.
Why is 0.5 hectares used when it is less than 1? Is it an error?
It is possibly written like that to show that the . is in the right place, or it could just be a habit of the person who wrote the information.
To say or write 0.5 or just .5 are the same.
I am not a teacher.