SDI ARCHITECTURE
With our US architecture office based in Boston and our sister office in Hyderabad, India, SDI Architecture creates customized architectural and interior design solutions through a collaborative design process. By working closely with international clients and consultants, we craft spaces that are tailored to each project's unique goals and deliver exceptional user experiences.
​
With over 35 years of combined expertise, our principals have successfully translated client objectives into thoughtful, innovative designs across a variety of sectors. Our approach emphasizes seamless design integration, ensuring that every element of a project contributes to architectural harmony and functionality.
​
Whether designing commercial spaces, residential projects, or specialized facilities, SDI Architecture is committed to delivering distinctive designs that meet the evolving needs of our clients and the communities they serve.
OUR ARCHITECTS
FOUNDER + PRESIDENT
BEN WILLIAMS
Benjamin Williams is the Founder and President of SDI Architecture, established in 2015 to create a collaborative design environment that tailors solutions to each project's unique goals. With over 25 years of experience in architecture and interior design, Ben expertly integrates technical precision with creative vision, guiding projects from conception to completion.
​
He earned his Bachelor of Architecture from the Boston Architectural College in 2001 and is a member of the American Institute of Architects (AIA) and the Boston Society of Architects (BSA). As a LEED Accredited Professional, Ben is dedicated to sustainable design practices that prioritize environmental responsibility.
​
Under Ben’s leadership, SDI Architecture has delivered impactful projects, including large-scale commercial spaces, custom interiors, and specialized facilities such as data centers. His expertise spans sustainable architecture, space planning, and adaptive design, ensuring each project is both functional and forward-thinking.
Ben’s passion for innovation and collaboration drives SDI Architecture’s mission to create thoughtful, customized solutions that meet the evolving needs of clients and communities.
CO-FOUNDER SDI INDIA + DESIGN DIRECTOR SDI
PRASANNA LACHAGARI
Prasanna Lachagari is the Design Director and Partner at SDI Architecture in Boston and a Founding Partner of SDI Design India in Hyderabad. Originally from Hyderabad, she moved to Boston to pursue her Master of Architecture at the Boston Architectural College (BAC), earning commendations for her thesis on how architecture can foster self-reflection and positive social interactions. During her studies, she played a key role in expanding SDI internationally by establishing SDI Design India.
​
Prasanna’s work spans both the U.S. and India, with a focus on sustainable architecture, biophilic design, and climate-responsive solutions.She also serves as a board member of For The Children Academy Foundation, supporting global educational initiatives, and is spearheading a nonprofit in Kakinada, India, to create stable jobs and steady incomes for locals.
​
Her achievements include recognition in Forbes 30 Under 30 (2022), Boston Business Journal’s 40 Under 40 (2021),and the Boston Architectural Alumni Emerging Designer Award (2021). With a deep commitment to social impact architecture, Prasanna integrates sustainability with community-driven solutions to design healthier, more functional spaces.
​
Prasanna is passionate about exploring the intersection of race and architecture and remains open to sharing her insights and experiences to inspire others in the industry.
​
Prasanna’s approach to design prioritizes regional adaptability, sustainability, and creating healthier built environments through innovative concepts such as biophilic interiors that enhance well-being. Beyond her design work, she actively engages in discussions around the intersection of race and architecture, constantly seeking opportunities to learn, grow, and contribute to meaningful change.
With a dedication to mentorship and collaboration, Prasanna remains open to sharing her insights and experiences, furthering conversations around architecture and community impact.
​
