Local authorities would be allowed to direct that derelict sites should be sold under public auction, under proposals to be discussed by the Green Party.
Party members will debate a range of motions when they gather for their annual convention in Cork City this weekend.
Among them are proposals to strengthen the powers of local authorities who can currently purchase sites by Compulsory Purchase Order (CPO).
Under the party's proposals, councils could order that a site be sold if it does not have the resources or capacity to buy it.
The owner would be given 12 months notice of the council's intention.
The party will also debate a motion to ensure that the rental cost of purpose-built student accommodation would stay below 30% of the full-time monthly minimum wage.
Geopolitical events will also feature. A motion added at the last minute will call on Israel to restore services to Gaza, and for a peaceful resolution to the conflict.
There will be a motion to extend parental leave and to introduce a basic income for carers.
The two-day gather will focus on next summer’s local and European elections and preparing for the possibility for a general election next year.
Party representatives will outline what it sees as a range of policy achievements in government, including a €3 billion fund in the Budget to invest in climate and nature projects, and a 25% reduction in childcare fees from next September.
