The group behind the occupation of Apollo House in Dublin has called on the Minister for Finance to instruct the National Asset Management Agency to open up its buildings for the homeless.
Hundreds of people gathered outside the building on Tara Street and marched to the Department of Finance to hand in a letter to Michael Noonan.
In a statement, the department said it had received a ten-page document from the Home Sweet Home group.
The statement said the content of the document will be considered and a response issued "in due course".
The department also said that NAMA has been active with regard to homelessness, offering almost 7,000 units to local authorities for social housing.
NAMA reports that of these, local authorities have taken up around 2,400 units.
The activists took over the building on 15 December and have been ordered to vacate it by noon on 11 January.
The group says around 40 homeless people are staying in the building.
The ten-storey office building in Dublin city centre had been empty since the middle of 2015.