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Trusted Architectural Design Services in Pennsylvania
Founded on the principle that architecture is fundamentally a service profession, TKS Architects has dedicated itself to delivering innovative, client-focused solutions that balance creativity with practicality. Our team combines diverse educational backgrounds and extensive industry experience to create designs that meet functional needs while maintaining aesthetic integrity. We maintain active memberships in leading professional organizations including the American Institute of Architects (AIA), National Council of Architectural Registration Boards (NCARB), Construction Specifications Institute (CSI), and International Codes Council (ICC).

With licenses in 21 states and NCARB-accredited status enabling rapid reciprocity expansion, we serve diverse markets including healthcare, senior living, education, and commercial sectors. Our commitment to continuing education ensures compliance with evolving building codes while maintaining budgetary efficiency. The 2025 merger with Mul Group enhances our capabilities through integrated structural engineering, geotechnical, and environmental services while preserving our service-first philosophy established at our Mechanicsburg headquarters.
Services
Healthcare Architecture Senior Living Design Educational Facilities Commercial Architecture Interior Design Public Safety Facilities Religious Buildings Food Service Design
Highlights and features
  • We maintain active AIA membership requiring annual continuing education for code compliance expertise
  • Our NCARB accreditation enables rapid multi-state licensing through reciprocity agreements
  • Integrated engineering services through Mul Group merger enhance project coordination
  • Proven success in healthcare facility design with specialized material selection knowledge
  • 21-state licensing coverage with localized design solutions for diverse regions
Associations and certifications
  • American Institute of Architects (AIA)
  • National Council of Architectural Registration Boards (NCARB)
  • Construction Specifications Institute (CSI)
  • International Codes Council (ICC)
Services
Healthcare Architecture
We create healthcare facilities that balance functionality with patient comfort through strategic material selection and natural lighting integration. Our designs accommodate evolving medical technologies while maintaining strict code compliance. With specialized knowledge of healthcare-specific regulations, we deliver efficient, flexible spaces that support both medical professionals and patients in critical care environments.
Senior Living Design
Our senior living communities combine accessibility features with residential aesthetics to create safe, comfortable environments. We incorporate universal design principles while addressing specific care requirements through thoughtful space planning. The designs emphasize social interaction areas while maintaining privacy, with materials selected for both durability and homelike appeal in various senior housing typologies.
Commercial Architecture
We develop commercial spaces that optimize functionality while creating inviting environments for both employees and customers. Our approach considers branding integration, workflow efficiency, and long-term adaptability in retail, office, and industrial settings. Through strategic material selection and spatial planning, we create cost-effective solutions that meet specific business operational needs while maintaining aesthetic appeal.
Interior Design
Our interior design services focus on creating functional, aesthetically pleasing environments that reflect client brand identity. We specialize in commercial and institutional spaces, optimizing layouts for efficiency while selecting materials that balance durability with visual appeal. The designs incorporate lighting strategies and spatial flow considerations to enhance user experience across various building typologies.
Educational Facilities
We design learning environments that support educational outcomes through flexible, technology-integrated spaces. Our approach considers evolving teaching methods while maintaining safety and accessibility standards. The designs incorporate natural lighting strategies and durable materials suited for high-traffic areas, creating inspiring spaces that accommodate diverse learning styles from early childhood through higher education facilities.
People
Doug Tilley
Design Principal
Doug leads TKS Architects' design efforts with over 25 years of architectural experience, specializing in healthcare and educational facilities. He maintains active AIA membership and focuses on creating functional spaces that balance aesthetic appeal with practical requirements.
Joseph Mul
President/CEO
Joseph Mul, a licensed architect with AIA credentials, oversees TKS Architects' business operations and client relationships. With extensive experience in firm management, he directs strategic growth while maintaining the company's service-first philosophy.
Questions
What architectural services does TKS Architects offer?
We specialize in healthcare facilities, senior living communities, educational institutions, commercial buildings, and interior design with code-compliant, budget-conscious solutions.
Are TKS Architects licensed in multiple states?
Yes, we hold architectural licenses in 21 states with NCARB accreditation enabling rapid reciprocity expansion for multi-state projects.
What makes TKS different from other architecture firms?
Our service-first philosophy combines creative design with practical execution, supported by in-house engineering services through our Mul Group partnership.
How does TKS handle complex building code requirements?
Our team maintains current code knowledge through continuing education, ensuring compliance while maintaining project budget efficiency.
Where are TKS Architects' office locations?
We operate from our main Mechanicsburg office with additional locations in Lancaster and York, Pennsylvania.
Reviews (6)
Scott Heltzel
Aug 11, 2020 Report
TKS provided exceptional and expedient service with consistent & friendly communication throughout the project. Thank you Dave!
Susan Rosso
Dec 01, 2017 Report
Doug and his staff are a pleasure to work with! I am excited to see the final product come to life. Many thanks to them for the unique design and functionality of the new build!
Jason Ritchey
Nov 28, 2017 Report
Our experience with TKS was fantastic! Doug, Jessica and the rest of the team were a pleasure to work with. We highly recommend TKS Architects.
Michael T.
Aug 25, 2017 Report
Excellent staff and team. Great service and attention to minor details that makes a project run smoothly.
Matthew Hartman
Jul 08, 2017 Report
Very pleased with the fast turnaround time of project documents and the quality of the communication to expedite the needed CAD backgrounds for the MEP designers was outstanding. Well done TKS you helped us impress a very good client of ours and I am sure a client of yours in the future.
Dominick Lucas
Dec 08, 2016 Report
TKS Architects have always been honest and upfront with us. They do what you ask of them, and then some. I appreciate them adjusting some fixings in our house without even asking.