The Covid-19 crisis has exacerbated problems in the planning system which both developers and homeless charities fear will deepen the housing crisis.
Environmental groups say the extra 23 days given by the Government to object as a recognition of present difficulties is not enough.
However construction industry experts say the system was already too prone to delay and point to the amount of existing High Court challenges to permissions granted by An Bord Pleanála.
One example is the plan for 650 apartments on playing pitches site beside St Anne's Park in Raheny, Dublin that has been given permission by An Bord Pleanála twice and is now going for a second High Court challenge.