Louis Kahn and IIM Ahmedabad: Brick, Light and Silence

Ask Indian architects to name the most influential modern campus in the country and many will name the Indian Institute of Management Ahmedabad. Its brick buildings, pierced by enormous circles and arches, cast deep shadows across courts and corridors; its main plaza is one of the best-known architectural spaces in India; and generations of architecture students have travelled to Ahmedabad to walk through it. It was designed by Louis I. Kahn, an American architect who was already one of the leading figures of world architecture, working with Indian colleagues who would themselves shape Indian architecture for decades.

For homeowners and designers, IIM Ahmedabad is more than a famous building. It is a lesson in three things Indian homes constantly struggle with: how to use one material honestly and well, how to bring light into a room in a hot climate without bringing heat and glare with it, and how to make spaces that feel calm. Kahn spoke of architecture in terms of silence and light — the quiet, unmeasurable desire for a building and the measurable act of making it. The campus shows what that means in brick and sunshine.

This article tells the story of the campus, explains how its brick construction works and why its arches carry concrete ties, looks at how its walls control light, reviews the debates about its future, and draws practical, dimensioned lessons that can be used in an ordinary flat or bungalow. Where precise dates or figures are uncertain, the article describes them generally rather than guessing.

Louis Kahn: the architect of silence and light

Louis Isadore Kahn was born in 1901 in present-day Estonia and grew up in Philadelphia, where he trained as an architect and spent most of his working life. Recognition came relatively late: his major buildings date from the 1950s onwards, when he was already in his fifties. Among them are the Yale University Art Gallery, the Richards Medical Research Laboratories in Philadelphia, the Salk Institute in La Jolla, California, the library at Phillips Exeter Academy and the Kimbell Art Museum in Fort Worth, Texas. In the same years that he worked in Ahmedabad, he was also designing the National Assembly complex in Dhaka, completed after his death.

Kahn's ideas are as influential as his buildings. He distinguished between "served" spaces, where people live and work, and "servant" spaces that hold stairs, ducts and services. He believed materials had their own nature that a designer should respect; his well-known anecdote imagines asking a brick what it wants to be, and the brick answering that it likes an arch. He returned again and again to light as the giver of all presence, and to silence as the source from which a building's idea comes. And he was preoccupied with how to deal with glare in hot climates, describing the idea of wrapping a building in deep outer walls, like ruins, with openings that admit light but keep the sun's direct heat away from the inner glass.

How Kahn came to Ahmedabad

The Indian Institute of Management Ahmedabad was set up in 1961 by the Government of India with the Government of Gujarat and Ahmedabad's industrial community; the scientist and institution-builder Vikram Sarabhai was among its central figures, and the institute's early academic programme was developed with the help of Harvard Business School. Ahmedabad at the time was an extraordinary place for architecture. Le Corbusier had recently completed buildings in the city, the National Institute of Design was being established, and a young Ahmedabad architect, Balkrishna Doshi, who had worked in Le Corbusier's office, was building his own practice.

The commission first approached Doshi, who was instrumental in bringing Louis Kahn to the project; Kahn was commissioned in the early 1960s, with Doshi as associate architect. Kahn travelled to Ahmedabad repeatedly over the following decade while running his Philadelphia office and his Dhaka project. Much of the day-to-day design development and site work depended on Indian collaborators. Anant Raje, who worked closely with Kahn, became central to the project, and after Kahn died suddenly in 1974, Raje carried the remaining work forward and later designed further buildings on the campus in a compatible brick language. The campus is therefore not the work of one man alone, but the product of a sustained collaboration between an American master and Indian architects, engineers and builders.

Why brick, and how the arches stand

Brick became the material of the campus. It suited Ahmedabad: brick was locally made, masons were skilled in laying it, it was economical in a country where labour was more available than cement and steel, and its thermal mass suited a hot, dry climate in which thick walls slow the passage of the day's heat. Kahn embraced it fully. The main walls of the campus are load-bearing brick, carrying the floors and roofs on the masonry itself rather than on a concrete frame filled with brick.

Load-bearing brick has one great limitation: it is excellent in compression but weak in tension. An opening in a brick wall must be spanned by something, and the traditional brick answer is the arch, which turns the weight above into compression along its curve. But an arch also pushes outwards at its base — the thrust — and in a slender wall, or at the end of a wall, that thrust can push the supports apart. Traditional builders resisted it with massive abutments or with iron ties. Kahn's answer at IIM Ahmedabad was a reinforced concrete tie, a beam across the base of the arch or the flat arch, which holds the two sides together in tension. The brick does the work that brick does best, carrying compression in the arch; the concrete does the work that concrete and steel do best, resisting tension. The combination is visible on the facades, where the grey concrete bands sit frankly within the brick, and it became one of the most widely imitated details in Indian architecture.

The brickwork also reveals how it was built. Courses are laid with great regularity; openings are sized and placed to suit the brick module; walls are thick, and their depth is exploited to create porches, shaded passages and window seats. Over the decades, Ahmedabad's monsoons, heat and the natural ageing of brick and early concrete took their toll, and maintenance of load-bearing brick structures of this age is a specialised task — a fact at the centre of the debates described later in this article.

Light: walls that wrap the glass

In Ahmedabad the sun is intense for much of the year, and glare is as much of a problem as heat. Kahn's response, developed in his Indian and Bangladeshi work, was to separate the outer wall that faces the sun from the inner wall that holds the glass. The outer brick wall is pierced with large openings — circles, arches, tall slots — but behind it, at a distance, sits the actual window. Sunlight strikes the outer wall and the floor of the space between, bounces, softens and reaches the interior as reflected light. Direct sun rarely touches the inner glass. The in-between space becomes a porch, a corridor, a place to sit. This is the sense in which Kahn spoke of wrapping a building in ruins: the outer walls stand like the shells of old buildings, sheltering the inhabited core.

Inside, Kahn's spaces use light as a material. Light falls from high openings and light wells, washes down brick walls, and pools on floors; the large circles cut in walls are both windows and frames, turning a view of a tree or a neighbouring building into a composed picture. Because the light is mostly indirect, interiors are calm rather than dazzling. The deep shadows are as important as the light: they give the brick its texture and the spaces their stillness. This is what visitors usually mean when they describe the campus as silent — not that it is quiet, but that it is visually at rest.

The campus plan: plaza, school and dormitories

The campus is organised around a large open court, now known as Louis Kahn Plaza, enclosed on its sides by the main academic building — with the library, faculty offices and classrooms. The classrooms are tiered, horseshoe-shaped rooms suited to the case-discussion method of teaching that the institute adopted. From the main building, the student dormitories extend in a connected series of brick blocks set on a diagonal grid, with shaded courts between them. The diagonal arrangement is commonly explained as a response to the prevailing breeze and the sun, opening the dormitory courts to the wind while shading their walls. Beyond them, separated by a lake in Kahn's conception, lie housing areas for faculty and staff.

What makes the plan memorable is the sequence of spaces between buildings: arcades, porches and courts in deep shade, where students gather, argue and wait between classes. Kahn believed that a school began with a man under a tree talking to a few others who did not know they were students; the corridors and courts of IIM Ahmedabad are places where that kind of informal learning can happen. For a designer, the lesson is that circulation is not wasted space if it is generous, shaded and pleasant to linger in.

Conservation and the debate over the dormitories

Buildings in load-bearing brick and early reinforced concrete need careful upkeep, and after half a century of Ahmedabad's monsoons and heat, parts of the campus needed significant repair. The institute undertook conservation of the library building, aiming to repair the brick and concrete while retaining the original character. In late 2020 the institute announced a proposal to replace a number of the original dormitories with new buildings, citing their structural condition. The proposal drew strong objection from architects, conservationists and alumni in India and abroad, who argued that the buildings could and should be restored. In early 2021 the institute withdrew the proposal and said it would seek wider consultation.

The episode raised a question that applies to many Indian buildings of the twentieth century: how to keep modern heritage in use. Unlike ancient monuments protected by the Archaeological Survey of India, modern buildings are usually owned and used by institutions that must keep them functional, safe and affordable to maintain. Conservation of such buildings requires specialist engineering — repair of corroded reinforcement in concrete, consolidation of brickwork, careful waterproofing of roofs and parapets — and decisions about where new services such as air-conditioning, data cabling and fire safety can be inserted without destroying what makes the building valuable.

Kahn's ideas in a modern Indian home

Few homes will ever be built in load-bearing brick with concrete-tied arches, but Kahn's principles translate surprisingly well into flats and bungalows. The four most useful are depth, one dominant material, indirect light and generous in-between spaces. The figure below shows how a deep window reveal — a Kahn-like thickened wall — can be built in an ordinary flat with cabinetry, and the table that follows sets out practical applications with indicative October 2026 costs consistent with other guides on this site.

These ideas also suit the Indian climate for the same reasons they suited Ahmedabad. A deep reveal or buffer reduces heat gain through glass; thermal mass in brick or stone evens out temperature swings; indirect light reduces glare and the need for artificial light by day; and shaded in-between spaces are comfortable outdoor rooms for much of the year. They are also economical: depth and shade are largely planning decisions, and a single material used well usually costs less than a collection of different finishes competing for attention. In Aaditya Interior's projects, a deep window seat or a single exposed-brick wall often does more for a room's character than an entire wall of decorative panelling.

The legacy: why IIM Ahmedabad still matters

IIM Ahmedabad influenced Indian architecture in ways that are still visible. Exposed brick with expressed concrete bands became a common language for Indian institutions, colleges and offices through the 1970s and 1980s. The idea of the deep wall and the shaded in-between space fed into the climate-responsive architecture developed by Indian architects of the following decades. And the collaboration itself — an international master working with Indian architects who then carried the ideas forward in their own work — helped establish Ahmedabad as one of the world's great cities for modern architecture. For students, the campus remains a place to learn how a few principles, pursued with conviction, can produce architecture of lasting power.

Looking ahead, the challenge is continuity. Buildings like these need informed maintenance, sensitive upgrades for modern services and safety, and owners who see their value. The recent debates suggest that public understanding of modern heritage in India is growing; documentation, specialist conservation skills and careful adaptive reuse will decide how well the twentieth century's best buildings survive into the twenty-second.

Seven lessons to take from Kahn's campus

• Let one material lead — brick, stone or wood — and use it consistently rather than mixing many finishes.
• Respect what each material does best: brick in compression, concrete and steel in tension, and show the junction honestly.
• Give windows depth: a reveal, seat or shelf of 450–600 mm turns a hole in the wall into a place.
• Keep direct sun off glass with a buffer — a balcony, verandah or jaali — and let reflected light into the room.
• Use a single strong geometry — a circle, an arch, a square — to organise an elevation or an interior.
• Design the in-between spaces: passages, foyers and verandahs wide and shaded enough to pause in.
• Separate served and servant spaces so services, storage and wet areas do not clutter living rooms.

Frequently asked questions

Who designed IIM Ahmedabad?

The original campus of the Indian Institute of Management Ahmedabad was designed by the American architect Louis I. Kahn, commissioned in the early 1960s, with Balkrishna Doshi as associate architect. Anant Raje, who worked closely with Kahn, carried the project forward after Kahn's death in 1974 and designed later buildings on the campus.

Why did Louis Kahn use brick at IIM Ahmedabad?

Brick was locally made, economical and familiar to Ahmedabad's masons, and its mass suits a hot, dry climate. Kahn also believed in respecting the nature of materials, and he used brick in load-bearing walls and arches, adding concrete ties where tension had to be resisted.

What is the purpose of the concrete band across the arches?

An arch pushes outwards at its base. The reinforced concrete tie across the arch holds the two sides together in tension, so the brick arch can carry load in compression without spreading its supports. It is a structural element, expressed openly on the facade.

What is Louis Kahn Plaza?

It is the large central court of the original campus, enclosed by the main academic building with the library, classrooms and faculty offices. It is one of the best-known architectural spaces in India and is used for major institutional events.

Can the public visit IIM Ahmedabad's Kahn campus?

It is an active academic campus, so access is controlled. Visiting arrangements change from time to time; check the institute's current rules before planning a visit.