New RTPI has rejected calls by the new government-backed thinktank, the National Housing and Planning Advice Unit (NHPAU), for more land to be released for housing to ease the growing affordability crisis. The RTPI has branded the NHPAU’s report, published today as the unit is officially launched, "simple." In a strongly-worded attack, the RTPI, which represents more than 20,000 planners, …