The Latvian government established the Housing Affordability Fund in mid-2022, a long-term self-sustaining financing model to channel investment into affordable housing. The fund is now being scaled up to ensure lasting impact on the Latvian housing market. This report identifies options for institutional arrangements, funding and financing opportunities, and operational tools to achieve this aim. It draws on the rich and diverse experiences of four peer countries in establishing and operating revolving fund schemes for affordable housing (Austria, Denmark, the Netherlands and Slovenia), and also reflects findings from engagement with a range of stakeholders in the Latvian housing sector.