Tim Siahatgar

Specialized in Building Components Design.

Tim Siahatgar

About Tim Siahatgar

My name is Tim Siahatgar, and I am an architectural engineer based in Irvine, California. Having graduated from a leading architectural engineering program, my career has been marked by a deep interest in modularity and flexible structures. As an expert in building construction, I recognize that the connectors within a building's structure are crucial for creating solid and rigid constructions. Whether it involves wood-to-wood lumber connections using nails, glue, or bolts, or metal-to-metal connections through bolts or welding, the strength of a building hinges on these essential connections. Upon meticulous examination, I have identified that aluminum extrusions offer numerous advantages over traditional wood or metal materials for human habitation. However, a persistent challenge for over a century has been the connection of two hollow extrusions. Although aluminum welding is precise, it is prohibitively expensive, and bolting two extrusion elements together fails to adequately handle lateral loads. While aluminum extrusions have been used for building framing since 1904, their applications have primarily been limited to interior framing within the building industry. Several European companies, such as Syma-Systems in Switzerland, attempted to develop locking solutions for connecting extrusions as early as 1985, but these efforts were largely confined to interior framing. The true breakthrough came with the work of Buckminster Fuller (1895-1983), a renowned architect who invented an interlocking joint specifically for aluminum extrusions in constructing geodesic dome structures. Inspired by Fuller's pioneering work, I have, after years of research and development, created an enhanced interlocking clamping system for modular aluminum geometric profiles. This invention offers swift and straightforward improvements to traditional connector techniques, thereby enhancing the robustness, comfort, efficiency, affordability, and sustainability of building structures. A comparison between conventional wood connectors, current wood stud skin stress framing, and the state-of-the-art technology in MHS building systems reveals significant differences. My design incorporates an interlocking structural aluminum framing that, through testing and analysis, has proven to be twenty times stronger than counterparts commonly found in almost all wood or light steel stud framing used in Type 5 light building construction. Beyond strengthening structural integrity, my design contributes to sustainability by making building structures recyclable, relocatable, and renewable. As an architectural engineer committed to advancing building construction, I take immense pride in my ability to make a positive and lasting impact on our world

  • Winner of the A' Design Award.
  • Specialized in Building Components Design.
  • Original Design.
  • Creative, Diligent and Innovative.
  • All Designs
  • Building Components
MHS Building Systems Structural Aluminum Framing Design

MHS Building Systems Structural Aluminum Framing Design

Building Components Design

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Interview with Tim Siahatgar

Could you please tell us more about your art and design background? What made you become an artist/designer? Have you always wanted to be a designer?
I come from an architectural engineering background, with a strong focus on structural systems and modular design. My journey began with a fascination for how things are built and a desire to create innovative solutions. This passion for sustainability and problem-solving drove me to become a designer, particularly in the modular construction field.
Can you tell us more about your company / design studio?
My company, MHS Building Systems, specializes in creating sustainable modular prefabricated construction systems using patented Structural Aluminum Framing. We focus on designing modular solutions that are eco-friendly, cost-effective, and adaptable to diverse needs, from residential ADUs to multi-story commercial buildings.
What is "design" for you?
Design is purposeful problem-solving that balances functionality, sustainability, and aesthetics. It’s about creating solutions that improve lives while respecting the environment.
What kinds of works do you like designing most?
I enjoy designing modular prefabricated systems that integrate renewable materials and advanced technology. Projects like net-zero energy communities and sustainable urban spaces excite me the most because they address pressing global challenges.
What is your most favorite design, could you please tell more about it?
My favorite design is the MHS Structural Aluminum Framing System. It’s a game-changer in construction, solving long-standing issues with traditional materials while offering sustainability, adaptability, and durability. Its innovative interlocking system and lightweight nature make it a standout in modern modular design.
What was the first thing you designed for a company?
The first significant project I designed was a small modular residential unit, which laid the groundwork for the MHS system. It allowed me to explore prefabrication and sustainability in construction.
What is your favorite material / platform / technology?
Aluminum is my favorite material due to its recyclability, lightweight properties, and strength. Additionally, I rely heavily on Revit and AutoCAD for precision in design.
When do you feel the most creative?
I feel most creative when I’m collaborating with a team or researching new technologies. Conversations with clients and peers often spark innovative ideas.
Which aspects of a design do you focus more during designing?
I prioritize sustainability, structural integrity, and adaptability. Ensuring that a design can withstand environmental challenges while remaining eco-friendly is always my focus.
What kind of emotions do you feel when you design?
Designing fills me with excitement and curiosity. It’s a process of discovery and problem-solving that’s both challenging and deeply rewarding.
What kind of emotions do you feel when your designs are realized?
When my designs come to life, I feel a sense of pride and fulfillment, knowing they are making a positive impact on people’s lives and the environment.
What makes a design successful?
A successful design is one that meets its functional goals while being sustainable, cost-effective, and aesthetically pleasing.
When judging a design as good or bad, which aspects do you consider first?
I assess its functionality, sustainability, and impact. A good design solves a problem effectively and has a positive influence on its users and the environment
From your point of view, what are the responsibilities of a designer for society and environment?
Designers have a duty to create solutions that reduce waste, conserve resources, and enhance quality of life. They must prioritize sustainability and equity in their work.
How do you think the "design field" is evolving? What is the future of design?
The design field is embracing modular prefabrication, renewable materials, and AI-driven technologies. The future lies in creating adaptable, net-zero energy solutions that address environmental and societal challenges.
When was your last exhibition and where was it? And when do you want to hold your next exhibition?
My most recent recognition was receiving the A Design Award in Como, Italy. I plan to showcase the latest developments in MHS systems in an international exhibition focusing on sustainable architecture and Green Building Construction.
Where does the design inspiration for your works come from? How do you feed your creativity? What are your sources of inspirations?
My inspiration comes from nature, sustainable architecture, and modular systems. I stay creative by researching, reading books like Cradle to Cradle, and collaborating with like-minded professionals.
How would you describe your design style? What made you explore more this style and what are the main characteristics of your style? What's your approach to design?
My design style is modern, functional, and eco-conscious. It emphasizes simplicity, adaptability, and the use of renewable materials.
Where do you live? Do you feel the cultural heritage of your country affects your designs? What are the pros and cons during designing as a result of living in your country?
I live in Southern California, where the culture of innovation and sustainability has greatly influenced my work. The region’s focus on eco-friendly practices aligns with my philosophy.
How do you work with companies?
I collaborate closely with companies, providing modular solutions tailored to their needs. From consulting to design and implementation, I work with architects, contractors, and developers to ensure seamless integration.
What are your suggestions to companies for working with a designer? How can companies select a good designer?
Companies should look for designers who are passionate, innovative, and aligned with their goals. Clear communication and a shared vision are essential for a successful collaboration.
Can you talk a little about your design process?
My process begins with site analysis and client consultation, followed by the creation of modular grids and the selection of sustainable materials. I use advanced software like Revit to refine the design and collaborate with engineers for structural integrity.
What are 5 of your favorite design items at home?
1.Modular shelving system. 2.Aluminum furniture. 3.Energy-efficient lighting. 4.Custom-designed sustainable flooring. 5.A net-zero energy HVAC system.
Can you describe a day in your life?
My day starts with research or reading to stay updated on industry trends, followed by team meetings and design sessions. Afternoons are typically spent refining concepts or collaborating with stakeholders on ongoing projects.
Could you please share some pearls of wisdom for young designers? What are your suggestions to young, up and coming designers?
Stay curious, learn from your peers, and focus on solving real-world problems. Always prioritize sustainability and think beyond aesthetics to create designs that make a difference
From your perspective, what would you say are some positives and negatives of being a designer?
•Positives: oThe ability to bring innovative ideas to life and solve real-world problems. oCreating designs that improve quality of life and contribute to sustainability. oThe satisfaction of seeing a design realized and appreciated by others. oOpportunities for continuous learning and collaboration with diverse professionals. •Negatives: oThe pressure of meeting high expectations and deadlines. oChallenges with adapting designs to varying building codes and regulations. oEnsuring material availability and overcoming logistical hurdles for complex projects.
What is your "golden rule" in design?
"Design with purpose, innovate with sustainability, and create for longevity."
What skills are most important for a designer?
Critical thinking, adaptability, proficiency in design tools, and a strong understanding of materials and sustainability are essential.
Which tools do you use during design? What is inside your toolbox? Such as software, application, hardware, books, sources of inspiration etc.?
•Software: oRevit and AutoCAD for precise 2D and 3D modeling. oStructural analysis software for ensuring compliance with safety standards. •Hardware: oHigh-performance workstations and drafting tools. oPen and paper for initial sketches and brainstorming. •Books and Resources: oCradle to Cradle by William McDonough for sustainable design principles. oOperating Manual for Spaceship Earth by Buckminster Fuller for inspiration on modularity. •Sources of Inspiration: oNature, sustainable architecture, and innovative modular systems. oCollaboration with industry peers and feedback from real-world applications
Designing can sometimes be a really time consuming task, how do you manage your time?
I prioritize tasks, set clear milestones, and collaborate with my team to stay on track. Breaking projects into smaller phases helps manage complexity.
How long does it take to design an object from beginning to end?
•Small modular structures: A few weeks, including concept development and design refinements. •Larger projects: Several months to account for testing, compliance with building codes, and collaboration with stakeholders.
What is the most frequently asked question to you, as a designer?
“How does the MHS system improve sustainability and efficiency in construction?”
What was your most important job experience?
Developing and refining the MHS Structural Aluminum Framing System over a decade has been my most significant and rewarding professional journey.
Who are some of your clients?
•Homeowners adding Accessory Dwelling Units (ADUs) to their properties. •Developers and commercial entities building pavilions, kiosks, and modular spaces. •Government agencies and organizations exploring net-zero energy solutions and sustainable housing.
What type of design work do you enjoy the most and why?
I enjoy designing modular prefabricated systems for sustainable urban communities. These projects align with my passion for addressing environmental challenges and creating adaptable, innovative solutions. They allow me to integrate cutting-edge technology with functional, eco-friendly design.
What are your future plans? What is next for you?
I plan to expand the MHS system globally, focus on seismic testing, and design large-scale net-zero energy communities.
Do you work as a team, or do you develop your designs yourself?
I work collaboratively with a diverse team of architects, engineers, and contractors to ensure the best outcomes for each project.
Do you have any works-in-progress being designed that you would like to talk about?
We’re currently preparing for seismic resilience testing of a full-scale MHS building, which is a pivotal step toward broader adoption.
How can people contact you?
People can contact me through office@modularhousingsystems.com or visit the MHS website for inquiries and collaboration opportunities.
Any other things you would like to cover that have not been covered in these questions?
I’d like to emphasize that MHS Building Systems is more than just a product—it’s a philosophy aimed at transforming the construction industry. I encourage designers, architects, and builders to embrace modularity and sustainability as integral components of their work. Collaboration and innovation are key to shaping a better future for our built environment.

Designer of the Day Interview with Tim Siahatgar

Could you please tell us about your experience as a designer, artist, architect or creator?
I have over 30 years of experience in the design and construction industry, with a focus on architectural engineering and modular prefabricated systems. I hold a Master's degree in Architectural Engineering and Urban Design, which provided a strong foundation for my career. Over the years, I have worked with a wide range of clients, including homeowners, developers, and contractors, to create sustainable and innovative building systems. My most notable achievement is the development of the MHS Structural Aluminum Framing System, which has been recognized globally, including winning the A Design Award in Italy.
How did you become a designer?
My journey into design was driven by an innate curiosity about how structures are built and how they can be improved. From a young age, I was fascinated by construction and the role of architecture in shaping our environment. This interest led me to pursue formal education in architectural engineering. Along the way, I recognized the need for more sustainable and efficient building methods, which became the focus of my career. The drive to solve real-world problems, combined with inspiration from pioneers like Buckminster Fuller, pushed me to innovate and develop systems like MHS that bridge aesthetics, functionality, and sustainability.
What are your priorities, technique and style when designing?
When designing, my top priorities are: 1.Sustainability: Ensuring that materials and methods have a minimal environmental impact. 2.Structural Integrity: Creating robust and reliable systems that stand the test of time. 3.Adaptability: Designing modular solutions that can evolve with changing needs. I rely on a blend of traditional sketching and digital tools like Revit and AutoCAD to develop detailed designs. My style emphasizes modern simplicity, functionality, and eco-consciousness, which are reflected in every project I undertake.
Which emotions do you feel when designing?
Designing fills me with a sense of purpose and excitement. The initial idea phase is thrilling, as it’s when possibilities seem endless. The journey of refining those ideas, collaborating with others, and solving challenges is equally fulfilling. Finally, seeing a design realized brings immense pride and joy, knowing that it can positively impact people’s lives and the environment.
What particular aspects of your background shaped you as a designer?
My background in engineering and urban design provided a technical foundation, while my exposure to graphic art and international business honed my creativity and problem-solving skills. Additionally, my understanding of materials science has been invaluable, especially when working with aluminum and modular systems. Influences like Buckminster Fuller have reinforced the importance of sustainability and innovation in my work
What is your growth path? What are your future plans? What is your dream design project?
My growth path is focused on expanding the MHS system globally, particularly in the development of net-zero energy communities and modular urban infrastructure. I aim to continue refining the system’s sustainability and scalability. My dream project is to design entire modular cities that integrate renewable energy, advanced transportation systems, and adaptable spaces, creating a model for sustainable living worldwide.
What are your advices to designers who are at the beginning of their career?
For young designers, my advice is: •Stay curious: Never stop learning about materials, technologies, and methods. •Solve real-world problems: Focus on practical solutions that address pressing needs. •Build resilience: Challenges are inevitable; embrace them as learning opportunities. One of the best pieces of advice I received was to always design with purpose and prioritize simplicity and sustainability.
You are truly successful as a designer, what do you suggest to fellow designers, artists and architects?
For young designers, my advice is: •Stay curious: Never stop learning about materials, technologies, and methods. •Solve real-world problems: Focus on practical solutions that address pressing needs. •Build resilience: Challenges are inevitable; embrace them as learning opportunities. One of the best pieces of advice I received was to always design with purpose and prioritize simplicity and sustainability.
What is your day to day look like?
My typical day begins with a review of ongoing projects and checking design updates or client communications. I spend the morning refining designs, collaborating with my team, or conducting research on new materials and technologies. I also dedicate time to staying updated on industry trends, often by reading articles or listening to podcasts on sustainable construction. The best part of my day is seeing a new idea take shape, whether through sketches or 3D models. Small victories, like solving a design challenge or receiving positive client feedback, make even the busiest days rewarding.
How do you keep up with latest design trends? To what extent do design trends matter?
While I stay informed about current design trends, I prioritize creating solutions that are timeless, sustainable, and functional. Trends can provide inspiration, but I prefer to focus on designs that reflect my philosophy and solve long-term problems. Inspiration comes from nature, innovative materials, and visionaries like Buckminster Fuller. When trends align with sustainability and innovation, I incorporate them thoughtfully into my work.
How do you know if a product or project is well designed? How do you define good design?
Good design seamlessly balances functionality, sustainability, and aesthetics. I evaluate a project by asking: 1.Does it meet its intended purpose efficiently? 2.Does it minimize environmental impact? 3.Does it enhance the user experience? The “aha!” moment for me is when a design is both elegant and practical, solving a problem effectively while inspiring those who interact with it. Common mistakes to avoid include prioritizing aesthetics over usability and ignoring environmental concerns.
How do you decide if your design is ready?
A design is ready when it achieves its purpose without unnecessary complexity. While perfection can feel elusive, there comes a point where further iterations yield diminishing returns. I decide a design is complete when it meets all functional, aesthetic, and sustainability goals, and feedback from collaborators confirms its effectiveness. That said, I always keep an open mind for future improvements, as every project informs the next.
What is your biggest design work?
The MHS Structural Aluminum Framing System is my greatest achievement. It revolutionizes modular construction by addressing challenges like sustainability, durability, and adaptability. I designed it to replace traditional resource-intensive methods with a lightweight, recyclable system that supports diverse architectural applications. Its unique interlocking clamp system makes it versatile and efficient. The process required years of research, testing, and overcoming technical challenges, but the result is a game-changer for the construction industry
Who is your favourite designer?
I deeply admire Buckminster Fuller for his groundbreaking work in modularity and sustainable architecture. His geodesic dome structures exemplify innovation, efficiency, and elegance. If given the chance, I would love to discuss his philosophies on design and sustainability. He has left an indelible mark on how we understand good design’s potential to improve lives.
Would you tell us a bit about your lifestyle and culture?
I live in Southern California, a region that celebrates innovation and sustainability, both of which align with my design philosophy. Music and art are part of my creative process, as they inspire new ideas and help me think outside the box. I believe good design is essential for societal progress—it can make daily life more efficient, enjoyable, and environmentally friendly. On a personal level, I’ve introduced energy-efficient systems into my own home, reflecting my commitment to sustainable living.
Would you tell us more about your work culture and business philosophy?
Collaboration is central to my work culture. While I lead projects, I thrive on working with a team of engineers, architects, and contractors who bring diverse perspectives to the table. I value clear communication, adaptability, and shared commitment to sustainability in my partners and collaborators. The core challenge in my profession is balancing innovation with practicality, ensuring that designs are both groundbreaking and implementable
What are your philanthropic contributions to society as a designer, artist and architect?
As a designer and architect, I am deeply committed to giving back to the community that has supported me. My contributions include: •Mentoring and Education: I share my knowledge through podcasts, interviews, and articles, focusing on sustainable design practices. These resources are freely accessible to help educate aspiring designers and builders. •Pro Bono Work: I have offered consultation and design support for humanitarian projects, particularly those involving affordable and sustainable housing solutions. •Advocating for Sustainability: By promoting systems like MHS Structural Aluminum Framing, I aim to make environmentally conscious building practices more accessible. •Opportunities for Young Designers: I actively engage in design events and conferences, offering networking opportunities, insights, and guidance to the next generation of designers. I firmly believe that designers, architects, and artists have a responsibility to address humanitarian issues. Good design has the power to improve lives, foster equity, and create lasting positive change. By involving ourselves in such projects, we can help build a more inclusive and sustainable future.
What positive experiences you had when you attend the A’ Design Award?
Attending the A’ Design Award was an incredible experience that offered numerous opportunities for growth and recognition: 1.Networking: I connected with a diverse group of professionals, including designers, architects, and innovators from around the world. These interactions enriched my perspective and opened doors for future collaborations. 2.Validation and Exposure: Winning the award validated the hard work behind my designs, giving them international recognition. This exposure has helped position MHS Building Systems as a global innovator in sustainable modular construction. 3.Continuous Learning: The competition allowed me to see innovative approaches from other designers, inspiring me to push boundaries and refine my own work. Why are design awards important? Design competitions are essential because they: •Inspire Innovation: They challenge designers to think creatively and develop solutions that stand out. •Build Credibility: Recognition from prestigious awards enhances a designer’s reputation and career prospects. •Encourage Collaboration: Competitions foster a community of like-minded professionals, enabling knowledge-sharing and partnerships. How do I feel about being Designer of the Day? Being recognized as Designer of the Day is a tremendous honor. It highlights the significance of my contributions and motivates me to continue pushing the boundaries of design for the betterment of society and the environment

Extended Interview with Tim Siahatgar

Could you please tell us about your experience as a designer, artist, architect or creator?
I come from an architectural engineering background, which has equipped me with a deep understanding of structural systems and modular design. My education and experience have been rooted in exploring innovative building techniques, particularly focusing on sustainability and renewable modern materials like aluminum. This foundation has allowed me to pioneer the MHS Structural Aluminum Framing System, revolutionizing modular prefabrication in construction.
How did you become a designer?
Design is my passion because it allows me to create solutions that improve the way we live while respecting the environment. I have always been inspired by the potential of architecture to address societal needs—whether it's creating more sustainable homes, reducing waste, or enhancing structural efficiency. Designing allows me to bridge functionality with aesthetics, creating spaces that are both practical and beautiful.
What are your priorities, technique and style when designing?
Becoming a designer was a choice driven by my innate curiosity and desire to innovate. I’ve always had a fascination with how structures come together and how they can be reimagined to meet modern challenges. My decision was fueled by the opportunity to make a meaningful impact on the construction industry and the environment.
Which emotions do you feel when designing?
I design modular prefabricated systems and sustainable building solutions, primarily focusing on residential and commercial applications. My designs aim to replace traditional, resource-intensive methods with eco-friendly alternatives. In the future, I hope to design more large-scale, net-zero energy communities and innovative urban spaces that incorporate modular, adaptive designs to maximize sustainability and efficiency.
What particular aspects of your background shaped you as a designer?
Young designers should focus on solving real-world problems through their work, constantly pushing boundaries and staying curious. Learning the technical aspects of design, mastering tools like Revit and AutoCAD, and understanding materials and sustainability are crucial. Equally important is developing a strong philosophy and vision for how design can improve the world. Collaboration and continuous learning from peers and mentors will also help shape their journey.
What is your growth path? What are your future plans? What is your dream design project?
A good designer creates functional and aesthetically pleasing solutions, while a great designer goes beyond that to innovate and address larger challenges. Great designers think holistically—they consider sustainability, inclusivity, and the long-term impact of their work. They also inspire others and create designs that stand the test of time.
What are your advices to designers who are at the beginning of their career?
A really good design is one that balances functionality, aesthetics, and sustainability. It should solve a problem effectively while leaving a positive impact on its users and the environment. I evaluate good design based on its efficiency, adaptability, and the extent to which it meets the needs of its intended audience.
You are truly successful as a designer, what do you suggest to fellow designers, artists and architects?
Good design enhances quality of life, reduces environmental impact, and provides long-term economic benefits. Investing in good design ensures durability, energy efficiency, and user satisfaction. For instance, MHS structures save resources, reduce costs over time, and offer flexible solutions that adapt to evolving needs.
What is your day to day look like?
If I had the time, I would design large-scale, net-zero urban communities that integrate modular construction, renewable energy, and advanced transportation systems. These designs would cater to environmentally conscious governments, developers, and communities aiming to reduce their ecological footprint.
How do you keep up with latest design trends? To what extent do design trends matter?
My dream project is to create a global network of modular prefabricated homes and communities, entirely built using the MHS system. These communities would be designed to withstand natural disasters, provide sustainable living solutions, and offer customizable spaces for diverse lifestyles and needs. The project would aim to redefine how we think about urban living, resilience, and sustainability.
How do you know if a product or project is well designed? How do you define good design?
The secret to my success lies in continuous innovation and problem-solving. Identifying challenges that have persisted for decades—like the difficulty of connecting hollow aluminum extrusions—and creating effective solutions has been my hallmark. My “secret ingredient” is perseverance, combined with a focus on sustainability, modularity, and adaptability
How do you decide if your design is ready?
I have drawn inspiration from Buckminster Fuller, whose interlocking joint inventions for geodesic domes were groundbreaking. His ability to blend functionality, aesthetics, and sustainability has significantly influenced my approach to modular systems.
What is your biggest design work?
I deeply admire the geodesic dome structures by Buckminster Fuller. They epitomize strength, efficiency, and simplicity, showcasing how innovative thinking can redefine architectural possibilities. Similarly, I respect the work of Syma-Systems for their exploration of modularity in interior framing.
Who is your favourite designer?
The MHS Building Systems Structural Aluminum Framing Design is my greatest achievement. Its ability to address long-standing challenges in construction—while offering sustainability, adaptability, and resilience—makes it a truly transformative innovation. The unique interlocking clamp system, reusability, and minimal environmental impact are what I consider its greatest strengths.
Would you tell us a bit about your lifestyle and culture?
To improve as a designer, one must stay curious, embrace challenges, and never stop learning. I spent over a decade refining the MHS system, continually testing, researching, and adapting based on real-world applications. Aspiring designers should focus on solving real problems while staying open to collaboration and feedback.
Would you tell us more about your work culture and business philosophy?
If I hadn’t pursued design, I would likely have delved into engineering or sustainable urban planning. These fields align with my passion for creating systems that improve human lives while respecting the environment.
What are your philanthropic contributions to society as a designer, artist and architect?
Design is the art of problem-solving with purpose. For me, it’s about crafting solutions that are not only functional but also sustainable, adaptable, and aesthetically pleasing. Design is the bridge between creativity and practicality.
What positive experiences you had when you attend the A’ Design Award?
Collaboration with a diverse team of professionals—engineers, architects, and contractors—has been invaluable. My family and colleagues have been my biggest supporters, encouraging me to pursue my vision despite the challenges.

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