SHOW MOBILE MENU our history Home / Who We Are / Our History Content Our History From its humble beginnings renovating a single, run-down Single Room Occupancy (SRO) residential hotel in 1981, TNDC has grown to be the largest community-based development corporation in San Francisco. TNDC has always been rooted in the Tenderloin, but has now grown across numerous neighborhoods in San Francisco. As TNDC as grown, we have adopted programs and expanded our services to better serve communities inside and outside our buildings. By deepening our work outside homes, we have become a comprehensive community development organization. Learn more TNDC's roots below. download the pdf (recommended) Origin Story Brother Kelly Cullen Growing Our Building Portfolio A Pioneer in Supportive Housing More than Homes: Health More than Homes: Voice More Than Homes Our work is guided by a holistic understanding of Homes, Health, and Voice. Housing as essential to a person's health. Food as health. Sustainability as health and a voice for the environment. Social work as advocacy. Advocacy as essential to being able to build more homes and foster community health. Watch our animation to learn more about how our work in Homes, Health, and Voice come together. Image Community Stories Read stories from TNDC tenants, program participants, community members, and staff! see more join us Image careers Image volunteer Image events Image donate subscribe to our newsletter Social Links Facebook Twitter Instagram LinkedIn YouTube Footer menu Contact Pressroom Tenant Resources Employee Portal Healthy Corner Store Coalition Tenderloin After-School Program Tenderloin People's Garden TNDC is a 501(c)3 nonprofit organization and our Federal Tax ID #94-2761808 | ©2021 Tenderloin Neighborhood Development Corporation