Introduction: Steel has steadily evolved from an industrial necessity to an architectural enabler capable of shaping bold, expressive, and long-lasting structures. In this edition of Design With Steel, Architect Darshan Medhi, Principal, Darshan Medhi Architects shares his perspective on how the material continues to influence architectural thinking. Drawing from historical precedents, practical site experience, and an appreciation for material longevity, he explores how steel allows architects to think beyond conventional structural boundaries while creating spaces that remain adaptable for generations.
How does steel expand your design possibilities and support more expressive architectural outcomes?
Every material, in many ways, belongs to a particular moment in human history. The earliest structures emerged from stone during the Stone Age. Over time, construction gradually transitioned to bricks and timber, and eventually to reinforced concrete. Each shift represented not only technological progress but also a change in how people imagined space and structure.
Steel represents another important step in that evolution. What makes it particularly compelling is the balance it offers between strength and weight. Compared to concrete, steel often provides far greater flexibility in structural behaviour while remaining significantly lighter. This characteristic allows architects to explore wider spans, slimmer profiles, and more adaptable structural systems.
Looking at the trajectory of construction technologies today, it is not difficult to imagine a future where steel increasingly replaces conventional concrete systems in many applications. Its adaptability, structural efficiency, and fabrication possibilities make it a material capable of supporting more ambitious architectural outcomes.
“Steel may not express itself in the same way as stone or concrete, but its rawness and structural honesty give it a powerful architectural identity.”
How do you reconcile aesthetic aspirations with structural performance when working with steel?
Historically, steel has played a major role in shaping modern architecture. Architects working before the 1960s frequently explored steel as a primary structural and architectural element. One of the most influential examples is the work of Mies van der Rohe, whose use of steel helped define the architectural character of Chicago.
In India, steel is still most commonly associated with industrial buildings or structures requiring large column-free spans. Yet steel possesses a unique architectural expressiveness that extends far beyond industrial applications.
International projects such as the Lloyd’s Building in London by Richard Rogers and the Centre Pompidou in Paris by Renzo Piano demonstrate how steel can become a defining visual and structural language. Steel may not express itself in the same way as stone or concrete, but its rawness, clarity, and structural honesty give it a powerful architectural identity. When handled thoughtfully, the material itself becomes part of the visual narrative of the building.
In what ways does incorporating steel advance your sustainability objectives and long-term environmental vision?
Today, sustainability is often narrowly associated with the concept of “green buildings.” However, sustainability is much broader than that. One of the most important aspects is the Life Cycle Analysis (LCA) of materials — essentially evaluating how long a material can perform effectively without major maintenance or replacement.
Sustainability should be understood in multiple dimensions: ecological sustainability, financial sustainability, social sustainability, and long-term maintenance requirements. When viewed through this broader lens, steel performs remarkably well.
Growing up in Mumbai, I have seen many structures in South Mumbai built with massive steel beams that have remained functional for decades. Several colonial-era steel bridges across the city have also survived for more than a hundred years. These examples clearly demonstrate the longevity of steel structures.
While the manufacturing process of steel may raise environmental concerns, judging the material solely on that basis does not present the full picture. When both the advantages and limitations are considered, steel often proves to be more sustainable than many other materials, particularly when its durability and long-term performance are taken into account.
“Sustainability is not only about green ratings. When we consider longevity, maintenance, and lifecycle performance, steel proves to be remarkably resilient.”
How do you integrate steel early in the design process to achieve lighter, more optimised structural systems?
In reality, the design process rarely begins with a specific material. Architecture generally starts with a vision of what the project intends to achieve — spatially, functionally, and aesthetically. Once that objective becomes clear, the material palette is selected accordingly.
Steel may sometimes be the most suitable material for a particular project, especially where longer spans, lighter structural systems, or rapid construction are required. In other situations, another material may be more appropriate.
Therefore, the approach should not be to begin with steel and attempt to force it into the design. Instead, one must first develop the architectural concept and then evaluate whether steel can effectively support that vision. When the material aligns naturally with the design intent, it becomes a powerful structural and architectural tool.
How do you collaborate with engineers and fabricators to convert complex steel concepts into buildable realities?
Construction is fundamentally a collaborative industry. No single professional can deliver a successful project alone. Architects, structural engineers, MEP consultants, contractors, fabricators, and suppliers all contribute to the final outcome.
For an architect, the most important responsibility is to clearly communicate the design vision to the entire team. Everyone involved in the project must understand not only what needs to be built, but also why it needs to be built that way.
In some cases, fabricators may require additional guidance during execution, particularly during complex welding or fabrication stages. A significant portion of the contracting sector still operates in relatively unorganised conditions. Many contractors possess exceptional practical skills, even if they may not always have formal training specifically for steel work.
Supporting and guiding them through the process ensures that the design intent is maintained while also strengthening the collaborative environment on site. When every team member understands the larger objective, the project benefits as a whole.
“Steel allows architects to think beyond standard sections and catalogue components. It can be shaped to meet the real needs of a design.”
How does steel help you create flexible, future-ready spaces capable of adapting to evolving functional and urban needs?
Steel is inherently one of the most flexible materials available to architects. It can be cut, welded, rolled, cast, bent, and moulded into almost any form. This adaptability allows designers to move beyond standardised structural components and explore new possibilities.
Most designers tend to rely on readily available sections such as C-sections, L-sections, or I-sections. While these are convenient, it is important to think beyond standard catalogues and explore how steel can be shaped to suit the specific needs of a project.
Another major advantage of steel is its high tensile capacity. This allows structures to achieve larger spans with fewer structural elements, creating more open and adaptable spaces. Its relatively lighter weight also makes transportation and on-site assembly easier.
Ultimately, the key lies in shifting the mindset. Instead of designing only with what is readily available, architects must focus on what the design truly requires and then use steel in ways that allow those ideas to be realised.
ADVICE TO YOUNG ARCHITECTS
What mindset should young architects cultivate?
Curiosity and collaboration. Work closely with structural engineers and contractors. Build foundational knowledge of steel systems. Master Revit. Study the works of Renzo Piano, Norman Foster, and SOM. Understanding structural logic builds confidence in translating intent into clarity.
The RSP Method
- Concept-stage integration of structure and architecture
- Early involvement of steel fabricators
- BIM as a design, not just coordination, tool
- Modular thinking for speed and precision
- Steel + precast for fast-track delivery
Why It Matters:
As projects grow larger, timelines tighter, and expectations sharper, the separation between design and execution is no longer viable. Steel demands, and enables, a new architectural mindset: one where beauty is engineered, and structure is expressive. “Design With Steel” is not about choosing a material. It is about choosing a way of thinking, where architecture is drawn with an understanding of forces, spans, tolerances, and time. In this convergence lies the future of buildable ambition.
