Turning empty church buildings or unused land into affordable housing will be discussed later.
The Church in Wales conference will look to encourage congregations to think about how space can be used for homes.
The aim is for churches, church halls and vicarages, which are no longer used because of falling congregations, to be offered for conversion into homes.
The Church in Wales believes it could meet housing needs and raise income.
It added that one of its churches closes every month in Wales, mainly because the number of people using them is falling.
The project Faith in Affordable Housing will be the focus of the conference in Cardiff which is being jointly hosted by charity Housing Justice.
It will also be a chance for people working in local authority housing or planning departments and other housing providers to learn more about church land and buildings.
Alex Glanville, head of property services at Church in Wales, said: "This is an exciting project which could benefit people in desperate need of housing.
I think we see a glimpse of the future for christianity here, they will become (if they are not already) landlords and property developers.
I do think they might need a new tagline, howabout;
"Why are you living in luxurious houses while my house lies in ruins?" - Haggai 1:4 (New Living Translation (©2007))