With decades of proven experience, SDA is a fully integrated development firm specializing in U.S. Government build-to-suit medical and office properties.
Who We Are
Our properties are more than buildings—they’re mission-driven environments designed to support the people and agencies who use them.
Our Properties
On May 12, SDA marked the opening of the Castle Rock VA CBOC—a modern space for healing, connection, and community care.
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With over four decades of experience, SDA Inc. specializes in creating high-value U.S. Government build-to-suit office buildings, delivering projects worth over $500 million.
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We blend architectural vision with engineering expertise to create build-to-suit lease back office buildings that are as functional as they are timeless.
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With over 40 years of experience, we specialize in managing government office buildings ensuring seamless operations and long-term value for your real estate investments
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For over four decades, SDA has partnered with government agencies to develop spaces that support the people who serve our nation. We’re a family-owned firm offering fully integrated development, design, construction, and property management under one roof.
More than a developer, SDA brings continuity, oversight, and care to every project we take on
Explore our portfolio of recently completed, in-progress, and legacy developments across the U.S.
Under Construction
View our projects in progress across the country. Every project under construction represents more than a building—it’s a commitment to the people who will live, work, and serve within its walls.
Portfolio Overview
SDA’s legacy properties are more than milestones—they’re enduring symbols of purpose, trust, and vision fulfilled. Browse our property showcase to see the lasting impact of our commitment—one building at a time.
On May 12th, SDA celebrated the opening of a state-of-the-art medical facility designed for those who served.
The ribbon cutting brought together SDA team members, veterans, civic leaders, and partners to mark the completion of a shared vision.
Celebrating side-by-side with those we serve reinforces our mission: creating spaces that honor commitment, resilience, and service.
We designed and built this clinic to elevate the experience of care—for both veterans and medical professionals.
From site selection to long-term management, SDA delivers unified, expert-led real estate execution—without handoffs or blind spots.
Founded in 1979 by Stephen Biagiotti, SDA has developed office buildings, medical clinics, neighborhood shopping centers, and land developments valued over $500 Million.
We blend architectural vision with engineering expertise to create build-to-suit lease-back office buildings that are as functional as they are timeless.
Broadly licensed in the Western U.S., our expert construction team delivers precision, quality, and reliability in every project—built right, every time.
With over 40 years of experience, we specialize in managing government office buildings ensuring seamless operations and long-term value for your real estate investments.
From secure federal offices to mission-critical medical clinics, our developments meet the moment—and the decades ahead. From secure offices to care delivery sites, we design for real use, real needs, and real longevity.
Our integrated team delivers government facilities that meet rigorous standards and real-world needs. With decades of experience, we design, build, and manage properties that serve public missions—and strengthen the communities around them.
We build high-performing government medical clinics—from site planning to final inspection—with one goal: to support the health and dignity of those who served. Our process centers long-term care, staff efficiency, and mission delivery.
We work closely with our partners to develop properties that meet real needs—from secure federal sites to dynamic workplaces that support everyday operations.
