This paper follows three previous ones which have reflected on the grass-roots campaign in Australia to mandate a basic access standard in all new housing. The original negotiations with government and the housing industry for this reform were at first disingenuous then reluctant despite human rights obligations. A tenacious campaign over two decades by user stakeholders, researchers, and principled housing providers finally convinced political leaders to mandate national access provisions for all new housing in the National Construction Code. The paper discusses what assisted and hampered this campaign. It then discusses why politicians eventually favoured the interests of ordinary people over the self-interests of the housing industry.