What is the fine-grained topic of the following text: HPD Takes Important Step Forward for "Permanent Affordability"
New York City took an unannounced, but important step towards making the affordable housing it finances “permanently affordability.” In the most recent round of Request for Proposals (RFPs) issued by the Department of Housing Preservation and Development (HPD), the City created a new regulatory requirement that will allow HPD to ensure that all affordable housing built on city-owned land through a Request for Proposals process will keep the affordability benefit in perpetuity. Only return the topic.
New York City's new regulatory changes for permanent affordable housing on city-owned land