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Your Trusted Architectural Partner in Sioux Falls, SD
Founded over three decades ago, our firm has established itself as a trusted leader in architectural design and engineering solutions. We prioritize client collaboration, utilizing innovative technologies to create spaces that reflect each client's unique vision while adhering to strict code compliance standards. Our multidisciplinary team brings extensive expertise in architecture, civil engineering, and interior design to every project. With a focus on community impact, we specialize in transforming complex challenges into functional, aesthetically pleasing environments. Our commitment to excellence is demonstrated through our long-standing relationships with clients across diverse industries.

We maintain active involvement throughout construction phases to ensure designs are executed with precision. Our professionals hold registrations in multiple states and maintain affiliations with leading industry organizations. Through strategic growth initiatives, we continuously expand our capabilities to better serve regional and national clients. Our approach balances creative vision with practical execution, ensuring projects meet both aesthetic and operational requirements. This dedication to comprehensive service delivery has solidified our reputation as a premier architectural firm in the Midwest.
Services
Site Evaluation Master Planning Architecture Interior Design Civil Engineering Construction Administration
Highlights and features
  • We offer 30+ years of architectural expertise across multiple states
  • Our client-centric approach prioritizes your specific needs and vision
  • LEED-accredited professionals deliver sustainable design solutions
  • We maintain local expertise with regional project experience in Sioux Falls
  • Multidisciplinary team handles architecture, engineering, and interior design
Associations and certifications
  • AIA
  • NCARB
  • LEED AP BD+C
What people say
True work of art Improved employee wellness Phenomenal communication Delivered exactly what I wanted Enjoyed working with them
Services
Site Evaluation
Our site evaluation service analyzes zoning regulations, environmental factors, and utility access to determine project viability. We provide comprehensive assessments that identify potential challenges and opportunities for development. This critical first step ensures your project starts with a solid foundation for success.
Master Planning
We develop strategic site layouts and phased development plans that align with long-term business goals. Our master planning considers future growth while optimizing current space requirements. This service creates a roadmap for sustainable development that maximizes property value.
Architecture
Our architectural design service creates functional, code-compliant buildings that reflect client branding. We combine creative vision with technical expertise to deliver spaces that meet both aesthetic and operational needs. From concept to construction, we ensure design integrity throughout the process.
Interior Design
We craft interior environments that balance beauty, functionality, and comfort. Our designs support specific work, learning, and living requirements while maintaining aesthetic appeal. This service creates spaces that enhance user experience and productivity.
Civil Engineering
Our civil engineering service designs grading, drainage, and utility systems that ensure buildable sites. We create infrastructure solutions that meet regulatory requirements while supporting architectural visions. This critical component ensures project feasibility and long-term success.
People
Keith Neuharth
Principal Architect | Partner
With over 35 years of architectural experience, Keith leads RSA's technical excellence initiatives. He maintains multiple state registrations and serves as the firm's code compliance expert. His leadership extends to industry organizations and local community development efforts.
Robert Fechtmeister
Principal Architect
A registered architect with 30+ years of experience, Bob specializes in nationwide project approvals and sustainable design. His expertise spans commercial, medical, and educational sectors. He focuses on creating efficient solutions that benefit clients and the environment.
Nathan Benson
Civil Engineer
Licensed in five states, Nathan brings 8 years of civil engineering expertise to RSA. He focuses on site infrastructure solutions that support architectural visions. His technical skills ensure projects meet regulatory requirements while maintaining design integrity.
Mikayla Bohner
Interior Designer
An Associate IIDA member, Mikayla creates functional spaces tailored to client needs. Her background in commercial furniture and graphic design informs her holistic approach to interior environments. She ensures design solutions maintain style without compromising functionality.
Jeff Smith
Chief Financial Officer
Jeff oversees RSA's financial operations with 25+ years of accounting and management experience. His strategic leadership ensures financial stability while supporting the firm's growth initiatives. He brings healthcare industry expertise to financial management.
Questions
What architectural services do you offer?
We provide comprehensive services including site evaluation, master planning, building design, interior design, civil engineering, and construction administration for commercial, residential, and institutional projects.
How experienced is your architectural team?
Our team includes architects with 30+ years of experience, multiple state registrations, and LEED accreditation. We combine decades of expertise with continuous professional development to maintain industry leadership.
Do you handle both design and construction phases?
Yes, we provide full-service architecture including concept development through construction administration. Our team remains involved during construction to ensure design intent is maintained and implementation meets specifications.
Can you work on historic building projects?
Yes, we have experience with historic preservation projects like the Goss Opera House. Our team creates accurate plans for older structures and addresses unique challenges while maintaining historical integrity.
What areas do you serve?
While based in Sioux Falls, we serve clients throughout South Dakota, North Dakota, Minnesota, Iowa, and Wyoming. Our team holds professional registrations in multiple states to better serve regional and national clients.
How do you approach sustainable design?
We incorporate LEED-certified practices and environmentally responsible solutions. Our team includes LEED Accredited Professionals who integrate sustainable features that reduce environmental impact while meeting client needs.