Apartments in DC by Ryan McKnight licensed under Creative Commons. This article was first published on November 8, 2016. Creating and preserving affordable housing continues to be a major challenge, especially now during the pandemic, so we wanted to share this article with you again. The Housing Production Trust Fund (HPTF) is a pot of money used to build affordable housing in DC. Since 2001, money from the fund has helped to produce or preserve nearly 10,000 units of affordable housing. Unlike other programs, which rely on federal funds to increase the supply of affordable housing, the HPTF is funded entirely with money raised within the District.