Mayor Signs ADU Bill Into Law By Wayne Yoshioka • Sep 14, 2015 ShareTwitter Facebook Google+ Email Mayor Kirk Caldwell holds up a fact sheet for ADUs. Councilmember Ikaika Anderson is pictured on the left and Councilmember Ron Menor on the right. Credit Wayne Yoshioka Listen Listening... / 3:11 Mayor signs ADU Bill into law A measure to address affordable rental housing on O’ahu was signed into law today at a bill signing ceremony. HPR’s Wayne Yoshioka reports. Tags: HPR-2newsADUsAffordable Rental HousingView the discussion thread.