Golygai’r newidiadau fod Llywodraeth Cymru yn cynyddu’r gyfran o gyllid a roddwyd drwy'r Model Buddsoddi Cyfnewidiol (MIM) o 75% i 81%. Golygai hyn bydd awdurdodau lleol a sefydliadau addysg bellach sydd yn defnyddio’r MIM ond yn talu 19% tuag at gostau parhaus blynyddol ar gyfer dyluniad, adeiladu ac ariannu, a chynnal a chadw'r cyfleusterau newydd.
The proposed changes will see the Welsh Government increase its share of the funding through the Mutual Investment Model (MIM) from 75% to 81%. This means local authorities and further education institutions delivering the new buildings using the MIM will only pay 19% towards the annual ongoing costs of the design, construction, funding and maintenance of the new facilities.