one additional bedroom for a severely disabled child who would normally be expected to share a bedroom under size criteria rules but is unable to do so due to their disability.
un ystafell wely ychwanegol i blentyn ag anabledd difrifol y byddai disgwyl iddo/iddi fel arfer rannu ystafell wely o dan y meini prawf maint ond nad yw'n gallu gwneud hynny o achos ei (h)anabledd.