The blocks affected are Lydstep Flats, LLandaff North (3 blocks), Loudoun and Nelson House, Butetown, and Channel View, Grangetown.
Y blociau yr effeithir arnynt yw Fflatiau Lydstep, Ystum Taf (3 bloc), Loudoun a Nelson House, Butetown, a Trem y Môr, Grangetown.