The remaining 5% (11,898) were social housing units not covered by the Welsh Government Rent and Service Charge Standard but still classed as social housing.
Roedd y 5% (11,898) sy'n weddill yn unedau tai cymdeithasol nas cwmpesir gan Safon Rhenti a Thaliadau Gwasanaeth Llywodraeth Cymru ond sy'n dal i gael eu hystyried yn dai cymdeithasol.