A further $34m will come from Weathertight Services - the agency tasked with dealing with leaky homes claims - after money budgeted to set it up went unspent.
Some of the savings will be reprioritised towards non-government social housing providers, with $104.1m to spent over the next three years.
The funding will be provided through the Social Housing Unit, which the Government established last year to support affordable housing.
Housing Minister Phil Heatley said the Government was committed to improving housing affordability and providing assistance to households in need.
The Social Housing Unit would have funding certainty over time to allow it to embark on longer-term, more ambitious projects, he said.
"It also provides flexibility in terms of how the fund is used. We want the housing sector to come to us with solid proposals that will deliver solid outcomes in a realistic timeframe."
Mr Heatley said every dollar invested with non-government providers delivered two to three times as much social housing as the Government could provide.
The Social Housing Fund has so far approved 15 housing projects valued at nearly $90m, and more were on the horizon.