A more thorough explanation:

The Office of Community Planning and Development (CPD) is a part of the U.S. Department of Housing and Urban Development. Its main responsibility is to manage grant programs that help communities plan and finance their growth and development. CPD also works to increase a community's ability to govern itself and provide shelter and services for homeless people.

For example, CPD might provide a grant to a city to help them build affordable housing for low-income families. They might also provide funding to a non-profit organization that runs a homeless shelter. By providing these grants, CPD helps communities improve their infrastructure and services, making them better places to live.