Cymdeithas yr Iaith is calling on the next Welsh Parliament to pass a ‘Property Act’ with a view to mitigating the housing crisis "before it is too late to save our communities."
In recent years, second homes have become an increasingly contentious issue due to their adverse effect on communities and the Welsh language.
Second homes now account for more than 5% of the total housing stock in four local authorities:
Gwynedd - 10.76%
Sir Benfro - 9.15%
Sir Fôn - 8.26%
Ceredigion - 5.91%
The new 'Property Act' advanced by Cymdeithas will:
Place a cap on the percentage of second or holiday homes in a community.
Change the definition of affordable housing and control rent prices so that they are affordable to people on local wages.
Devolve planning powers to the most appropriate local level.
Ensure that vacant houses are brought into use before new development takes place.
Legislate more firmly on conducting language impact assessments when impact on the Welsh language is suspected.
Make language planning mandatory to ensure that developments have a positive rather than a negative effect.
A petition calling for local authorities to be given powers to control the housing market in rural and tourist areas launched by Cymdeithas received more than 5,000 signatures.
'Nid yw Cymru ar Werth' rally
Cymdeithas yr Iaith has organised a rally that will be held at the Tryweryn dam at 1pm on 10 July.
The rally will take place a few days after the Senedd election in order to pile pressure on the next Welsh government.
Plaid Cymru MS Delyth Jewell and singer Dafydd Iwan will speak at the event.