Eureka Group Holdings (ASX:EGH) said it executed a sustainability terms deed poll, converting all of its AU$180 million facilities with Westpac Banking (ASX:WBC, NZE:WBC) and National Australia Bank (ASX:NAB) into social loans, according to a Thursday Australian bourse filing.

Under the company's sustainable finance framework, proceeds will be allocated on a portfolio basis to eligible projects, such as the delivery of affordable housing for its residents and green upgrades within its villages, the filing said.

The company will provide annual allocation and impact reporting to lenders, including, on a best-effort basis, indicators such as average rent-to-income ratio, number of eligible residents, installed solar photovoltaic cell/battery capacity, and estimated emissions avoided, per the filing.

Westpac Banking and National Australia Bank's shares each gained about 1% in recent Thursday trade.