Chettinad Houses: Athangudi Tiles, Burma Teak and Courtyards

In a dry, flat corner of southern Tamil Nadu, around the town of Karaikudi, stand some of the largest private houses ever built in India. Village after village is lined with mansions whose ornate gateways open onto courtyard after courtyard, ringed with polished teak pillars, floored with patterned tiles and finished in lime plaster so smooth it shines. These are the houses of Chettinad, built by a merchant-banking community whose business once stretched from Ceylon to Burma, Malaya, Singapore and Indochina.

For a designer, Chettinad is more than a beautiful style to copy. It is a complete lesson in building for a hot climate with a mix of local craft and imported material, and in planning a house around family life, ritual and storage. It is also a cautionary tale. Many of these houses have been emptied, locked or stripped for their teak and fittings, and much of what is sold as 'Chettinad style' today is a loose collection of carved doors and coloured tiles with none of the planning logic that made the originals work. This article explains how the houses were planned and built, looks closely at their three signature materials — Athangudi tiles, Burma teak and polished lime plaster — and turns the lessons into dimensions, specifications and costs for modern homes.

The Nagarathars and the rise of Chettinad

Chettinad is a cluster of villages and small towns spread across parts of today's Sivaganga and Pudukkottai districts, with Karaikudi as its main town and places such as Kanadukathan, Pallathur, Kottaiyur and Athangudi among the best known. It is the home region of the Nattukottai Chettiars, also called the Nagarathars, a community of traders, bankers and moneylenders. Through the nineteenth century, as British rule extended across South and South-East Asia, Nagarathar firms followed it, financing agriculture and trade in Ceylon, Burma, Malaya, Singapore and French Indochina. In Burma in particular, their lending became deeply woven into the rice economy of the Irrawaddy delta.

Much of the profit came home. From roughly the later nineteenth century until the Second World War, families poured their wealth into houses in their native villages — houses built less for daily convenience than for family identity, weddings, rituals and the storage of a joint family's possessions. Families competed to build ever grander homes, and the merchants' overseas connections meant that materials could be brought from wherever their business reached. The result is an architecture that is unmistakably Tamil in plan and ritual, but international in its materials and decoration.

How a Chettinad house is planned

A Chettinad mansion is long, narrow and deep. Many occupy a plot that runs right through a block from one street to the street behind, so the house has a formal front on one street and a service entrance on the other. Along that axis, the house is a sequence of spaces that become more private the further one goes. The plan varies from house to house and was often extended over generations, but the core sequence is consistent enough to describe, and Fig. 2 shows an illustrative version.

At the street is the thinnai, a raised, covered platform on either side of the entrance where visitors, traders and passers-by could sit and talk without entering the house. The main doorway, framed in heavily carved teak and often crowned by a carving of a deity such as Gajalakshmi, leads into a reception area and then into the heart of the house: a large open courtyard, called the valavu, surrounded by a colonnaded verandah of teak or stone pillars. Around this court open a series of rooms, traditionally one for each married son's family, used mainly as private stores and sleeping rooms. Beyond the main court, many houses have a large hall for dining and gatherings, and then a rear court with the kitchen, stores, cattle and service areas leading to the back street.

Climate: how the courtyard keeps the house cool

Chettinad is hot for much of the year, and the houses are built to cope without machines. The courtyard is the engine. Open to the sky and shaded around its edges by deep verandahs, it lets hot air rise out of the house, draws cooler air in through the rooms and high openings, and floods the deep plan with daylight that has been softened by bouncing off the court floor and walls. The rooms around it have high ceilings — commonly four metres or more on the ground floor — so that warm air collects above head height. Thick masonry walls finished in lime plaster absorb heat during the day and release it slowly, and the shaded verandah keeps direct sun off the walls of the rooms.

Rain is handled as carefully as heat. The roofs around the court slope inwards, so monsoon rain falls into the courtyard and is led away through drains and stone channels; in a region dependent on seasonal rain, water management mattered at the scale of both the house and the village, where temple tanks and ponds stored water. The court floor is usually a step lower than the surrounding verandah so that water never reaches the rooms. These are exactly the principles that modern climate-responsive design tries to recover with double-height spaces, ventilation shafts and stack-effect towers.

The materials: local craft and imported luxury

Chettinad houses combine two families of material. The local family — fired brick, lime mortar and plaster, granite for plinths, steps and some columns, clay roof tiles, and the cement tiles made in nearby Athangudi — formed the bulk of the building. The imported family, brought through the merchants' trading networks, supplied the luxury: teak from Burma for doors, pillars, beams and ceilings; marble from Europe for some floors; and a range of European and Asian glass, ceramic tiles, cast iron, chandeliers and furniture. Many houses use flat roofs of the Madras terrace type — timber joists carrying a layer of bricks laid diagonally and finished with lime concrete — a construction common across the Madras Presidency at the time, alongside pitched clay-tile roofs over the verandahs.

Burma teak

Teak is the material most associated with Chettinad, and Burmese teak in particular was prized for its straight grain, golden-brown colour, natural oils and resistance to termites and decay. In the mansions it appears as tall turned or plain pillars around the courtyard, as massive door frames carved with deities, flowers and creepers, as beams and coffered ceilings, and as furniture. Many of those pillars and doors have now left the region: as houses fell empty, their timber was sold to antique dealers in and around Karaikudi, and Chettinad doors, pillars and furniture are found today in homes, hotels and restaurants across India and abroad.

For a modern project, genuine old Burma teak is scarce and expensive, and its legal origin should be documented. Plantation teak grown in India and imported teak from other sources are the usual alternatives, and engineered options — teak veneer on a stable plywood core — give the look on wide panels without the movement of solid wood. Salvaged Chettinad pieces can be beautiful, but they should be checked for borer damage, earlier repairs and structural soundness before being used as anything more than decoration.

Polished lime plaster

The walls of the formal rooms are often finished in a lime plaster burnished to a smooth, slightly glossy surface. Accounts of the technique commonly mention egg white among the ingredients, along with other natural additives, applied in thin coats and polished by hand. The result is cool to the touch, hard-wearing and breathable — it lets the masonry behind it dry out after the monsoon, which modern cement plasters and plastic paints do not. Restoring such walls needs lime and craftsmen who understand it; patching with cement plaster traps moisture and causes the surrounding lime to fail.

Athangudi tiles: how they are made

Athangudi tiles take their name from the village of Athangudi near Karaikudi, where they are still made by hand. Unlike ceramic or vitrified tiles, they are not fired. Each tile is cast face-down on a sheet of glass, which gives the face its characteristic smooth sheen, and gets its strength from cement curing in water, not from a kiln. Because every tile is poured by hand, slight variations of colour and edge are normal and are part of the charm.

The process is simple to describe and difficult to do well. A metal frame carrying the pattern is placed on a glass sheet, and liquid mixes of white cement, fine sand and oxide pigments are poured into its cells, one colour at a time. The frame is lifted out, a dry mix is sprinkled over the wet colour to absorb excess water, and a thicker backing of cement and sand is filled into an outer frame and pressed. After some hours the tile is released from the glass, then cured in water for several days and dried in the shade before dispatch. The glass face is what gives a new Athangudi floor its gentle gloss, which deepens with age and use.

Laying is as important as the tile. Athangudi tiles are traditionally laid on a cement-sand bed over a well-cured, level base, with very fine joints, and the surface is cleaned rather than heavily machine-polished; makers and experienced masons advise on the right method for their tiles, and their advice should be followed. Because the tiles are cement-based, they should be protected from acid cleaners, and staining materials such as turmeric or oil should be wiped up promptly, especially while the floor is new. A floor that is cared for simply — swept, mopped with water and a mild neutral cleaner — tends to grow more beautiful with years of use, which is why so many of the original Chettinad floors are still in service.

Decline, salvage and conservation

The Nagarathars' overseas business was badly hit by the economic depression of the 1930s and then by the Second World War, when Japan occupied Burma and Malaya. After the war, the political changes in Burma, Ceylon and other countries in the years after independence made it very difficult to continue the old business, and families' fortunes shifted to other activities, often in Indian cities. The mansions, too large and too far from the new centres of work, were increasingly left to caretakers and opened mainly for weddings and festivals. Some were divided among heirs, some demolished, and many stripped of their teak, tiles and fittings for sale.

In recent decades, attitudes have changed. Several mansions have been restored as heritage hotels and homestays, conservation architects and local organisations have documented the region, and the village cluster has been placed on UNESCO's Tentative List — the step before a possible World Heritage nomination. Visitors now come for the architecture, the Athangudi tile workshops and the region's famous cuisine. The challenge, as with most living heritage, is to keep the houses in use without destroying what makes them special: repairing lime with lime, teak with teak, and resisting the temptation to replace patterned floors with vitrified tiles.

Using Chettinad ideas in a modern home

Most people who love Chettinad do not want to live in a museum, and a 3BHK flat cannot hold a valavu. The way to use the style is to borrow its principles and two or three of its materials, not to recreate a mansion. The strongest ideas transfer easily: an entrance that is a sequence rather than a door opening straight into the living room; a central space that is taller or brighter than the rooms around it; storage planned as dedicated rooms or full walls; floors that improve with age; and one or two crafted wooden elements given real presence. In Aaditya Interior's experience, an Athangudi floor in one room, a teak or teak-veneer main door and a lime or lime-look wall can carry a whole home's character, while the rest stays calm.

Two cautions apply. First, avoid the theme-restaurant look: a Chettinad door, Athangudi tiles, brass lamps, a swing, carved pillars, tile dados and red oxide all in one living room overwhelm a modern-height space. Choose a hero element and let it breathe. Second, respect the materials' needs. Athangudi tiles and lime plaster are not waterproof membranes; they belong in living spaces and verandahs rather than inside a shower. Solid teak moves with the seasons, so wide panels should be engineered or properly framed.

Rules for designing with Chettinad

• Borrow the planning ideas first — a layered entrance, a bright central space, storage as rooms — and the decoration second.
• Pick one hero element per space: an Athangudi floor, a carved door or a teak colonnade, not all three in one room.
• Order Athangudi tiles from an established maker with 10–15 per cent extra for cutting and future repairs, and keep a box from the same batch.
• Lay Athangudi tiles on a cured, level base with fine joints, following the maker's laying and polishing method; avoid acid cleaners.
• Use solid teak for doors and pillars only with documented legal origin; use teak veneer on a stable core for wide panels.
• Repair or imitate lime plaster with lime-based products, never cement, on old walls.
• Inspect salvaged Chettinad pieces for borer, rot and old repairs before buying; price them on condition, not story.
• Keep Athangudi tiles and lime finishes out of showers and other constantly wet zones.

Frequently asked questions

What are Athangudi tiles made of?

Athangudi tiles are made of cement, fine sand and oxide pigments for the coloured face, backed by a thicker layer of cement and sand. They are cast face-down on glass, water-cured and dried, not fired in a kiln. The glass gives the face its smooth sheen.

Are Athangudi tiles good for modern homes?

Yes, in living rooms, bedrooms, foyers, verandahs and pooja rooms. They are cool underfoot and develop a pleasant patina. They need a skilled mason, should be cleaned with water and mild neutral cleaners rather than acid, and are best kept out of showers and very wet areas.

Why are Chettinad houses so big?

They were built by wealthy merchant families as joint-family homes and as statements of family standing, with space for many households, large stores, and weddings and rituals that could gather hundreds of people. The houses were often used mainly for such occasions while family members worked overseas or in cities.

What is the courtyard in a Chettinad house called?

The main open courtyard is commonly called the valavu. It is surrounded by a colonnaded verandah and the rooms of the house, and its inward-sloping roofs drain monsoon rain into it.

Is Burma teak still available?

Genuine old Burma teak is scarce and expensive, and is mostly found as reclaimed timber or salvaged doors and pillars. New teak from plantations in India and other countries, and teak veneer on stable cores, are the practical alternatives. Ask for documentation of legal origin for any solid teak.