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Improving Quality of Life Through Housing & Services
St. Mary Development Corporation
Partnering to improve lives through housing and services that help older adults thrive.
For over 35 years, St. Mary Development Corporation has been meeting people where they are to provide affordable housing solutions to low-income older adults and families. During our history, we have developed 5,357 housing units in 80 apartment communities across 11 states in neighborhoods that need it most.
🏢 80+ Affordable Housing Communities
🏠 2,200+ Seniors Housed
❤️ 90% of Residents Use Supportive Services
"St. Mary has an exceptional high standard of excellence in both real estate development and caring for its residents. Their caring spirit clearly separates them from other affordable housing developers.” – David Liette, Partner and President, Miller-Valentine Property Management
What We Do
Using housing as a foundation, we improve quality of life by addressing barriers people face in their communities. Our quality of life depends on many things, including having a decent place to live, access to healthcare, adequate finances to pay for necessities, and loving family and friends. These things, often referred to as the social determinants of health, are the focus of St. Mary Development in each of our affordable apartment communities.
Partnerships
Using housing as a foundation, we improve quality of life by addressing barriers people face in their communities. Our quality of life depends on many things, including having a decent place to live, access to healthcare, adequate finances to pay for necessities, and loving family and friends. These things, often referred to as the social determinants of health, are the focus of St. Mary in each of our affordable apartment communities.
We execute our mission through real estate development and supportive services, building accessible, safe, and affordable apartment homes for older people and families, and giving them access to in-house experts who help them navigate complex networks of healthcare, social service, and government agencies to get the care and services they need.
Learn more about our approach
Community
The average income of our residents is only $15,000 a year, making them vulnerable to living in unsafe housing or neighborhoods. In fact, fifteen percent of our residents were previously homeless. We provide affordable housing because we know a safe home is the foundation for a high-quality life. Our apartments are designed with older people in mind, and include features like zero-step entries, roll-in showers, and community spaces. They’re more accessible than 99% of housing in the country and allow our residents to age in their homes and avoid Medicaid nursing homes.
Learn more about our communites
Residents
St. Mary Development’s mission is the idea that everyone should be treated with dignity and respect and ALL people deserve a safe affordable place to live regardless of their income. But we don't do it alone – our work is made possible by our incredible partners, including developers, architects, engineers, contractors, construction companies, and more. We partner with public organizations and private firms to build housing communities while helping our partners advance their organizational goals. St. Mary Development believes we are better together, and our seniors and families couldn’t agree more.
Hear from our residents
St. Mary Development is a CORES-certified organization. CORES organizations are invested in using housing as a platform for opportunity and have a record of providing robust resident services coordination in affordable housing communities.
Connect with us
We'd love to chat with you about how we can partner to advance your business goals while providing quality and affordable housing to older people with low incomes.
Click to fill out a short form and someone on our team will be in touch.
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St. Mary is a proud member of NeighborWorks America.
© 2025, St. Mary Development Corporation