The Castle Square Tenants Organization
476 Tremont St
Boston, MA 02116
The Castle Square Tenants Organization, Inc. is a 501(c)(3) non-profit organization that was founded in 1987. The mission of the Castle Square Tenants Organization (CSTO) is to preserve Castle Square Apartments as affordable housing for low and moderate income residents into perpetuity and provide comprehensive community and social supports for residents of Castle Square Apartments and the surrounding community.
Your donations mean a lot! They help us to continue to run high quality programs, and expand in new, exciting areas. Thank you for your support!