It has been a busy few weeks in one key element of the Irish housing system – trying to understand the likely volume of housing required in the country over the coming decades. First, the Housing Commission’s figures came out in late May, with estimates of housing requirements out to mid-century.  A month later, an ESRI working paper that is supposed to form the backbone of updated housing targets was released. And then in mid-July, the Central Statistics Office released new population projections, a key input into understanding housing requirements, that take the latest information on fertility, mortality and migration…