This research must result in granular data regarding the different types of accessible housing that is required compared to what is presently available on a county-by-county basis.
Rhaid i'r ymchwil hon arwain at ddata gronynnog ynghylch y gwahanol fathau o dai hygyrch sydd eu hangen o'i gymharu â'r hyn sydd ar gael ar hyn o bryd fesul sir.