One myth that is common is that the extra houses are needed to provide homes for the next generation in Cornwall and because of changes in household size.
Yet as each new generation comes forward another generation passes on releasing housing which is then available for the new generation.
The evidence from the last census does not suggest that household size has changed much therefore creating little need for additional housing.
The real driver of housing ‘need/demand’ is population increase due to positive net in-migration. [Left to its own devices the population of Cornwall would fall as deaths exceed births].