Er bod llawer o'r problemau sy'n gysylltiedig ag ail gartrefi yn gyffredin mewn gwahanol rannau o Gymru, mae heriau penodol yn ein cymunedau Cymraeg. Mae Prosiect Perthyn, a gyflwynir mewn partneriaeth â Cwmpas, yn rhan o’r Cynllun Tai Cymunedau Cymraeg. Mae Perthyn wedi dyfarnu grantiau i 21 o grwpiau cymunedol i ddatblygu cwmnïau cydweithredol a chynlluniau tai dan arweiniad y gymuned. Mae pump o'r prosiectau yn ardal beilot Dwyfor.
Although many of the issues relating to second homes are common in different parts of Wales, there are particular challenges in our Welsh-speaking communities. Prosiect Perthyn, delivered in partnership with Cwmpas, forms part of the Welsh Language Communities Housing Plan. Perthyn has awarded grants to 21 community groups to develop new community-led co-operatives and community-led housing. Five of the projects are in the Dwyfor pilot area.