Fel rhan o'r ymateb Cymreig i'r risgiau cynyddol a amlygwyd gan Adran Addysg y DU, gofynnwyd i bob landlord cymdeithasol asesu eu stoc tai cymdeithasol ar gyfer presenoldeb RAAC. Bydd yr wybodaeth hon yn cynnwys sefydlu pryd y cynhaliwyd arolygon neu arolygiadau RAAC ddiwethaf; canlyniadau'r arolygon a'r wybodaeth am hyd a lled a math yr eiddo lle gallai RAAC fod neu y canfuwyd ei fod yn bresennol. Lle nad oedd yr wybodaeth bresennol yn rhoi digon o sicrwydd, mae arolygon manwl o eiddo a adeiladwyd o fewn yr amserlen RAAC berthnasol wedi'u comisiynu.
As part of the Welsh response to the increased risks highlighted by the UK Department for Education all social landlords were asked to assess their social housing stock for the presence of RAAC. This process has included establishing when RAAC surveys or inspections were last undertaken; the results of those surveys and information about the extent and type of properties where RAAC might be or has been found to be present. Where the existing information did not provide sufficient assurance, detailed surveys of properties built within the relevant RAAC timeframe have been commissioned.