—The courtyard at the heart of home
The four-block courtyard house, planned for how a family lives now — a central nadumuttam, shaded verandahs, sloping tiled roofs and timber craftsmanship. Traditional in spirit, contemporary in living.
—Naalukettu
Naalukettu means four halls. Four blocks of the house are set around an open central court — the nadumuttam — with a verandah running the whole way round it. For centuries this was simply how a substantial Kerala home was built, and it was built that way for reasons that have not gone anywhere.
The four blocks take their names from the directions they face — vadakkini to the north, kizhakkini east, padinjattini west and thekkini south — and each traditionally took different work. The thekkini was commonly where valuables and the family shrine were kept, the vadakkini the cooking side, the kizhakkini a store. The exact allocation varied between households and between regions, but the principle behind it did not: orientation decided which rooms met the morning sun and which stayed cool through the worst of the afternoon.
A house that outgrew four blocks did not sprawl outward — it repeated. Two courts make an ettukettu, eight halls; four make a pathinarukettu, sixteen. The same logic holds at every size, which is a large part of why it still takes a modern brief without strain.
The court is a machine as much as a room. Warm air rises out of it and cooler air is drawn in beneath the deep eaves, so the house breathes without a fan running. Daylight reaches rooms four metres deep without a single window facing the road. And when the monsoon arrives, the rain falls into a court designed to take it rather than against walls designed to resist it.
What has changed is family life. Kitchens are no longer detached, bathrooms are no longer outside, cars need somewhere to go, and nobody wants eight small dark rooms. So we keep the court, the verandah ring and the roof, and rebuild everything else around the way people actually live.
—How we build them
A nadumuttam that is too small stops working — it becomes a light well with a drain rather than a room the house gathers around. We size it against the roof height so the sun reaches the floor for part of the day, and we drain it at the centre rather than at the edges. The Amal Murali Residence in Alappuzha is planned exactly this way, with the dining opening straight onto the court.
In a traditional Naalukettu you move around the court, not through rooms. We keep that: the verandah is the corridor, which means every room gets two external walls and cross-ventilation, and the house never needs an internal passage with no daylight in it.
Full timber framing is rarely affordable now and rarely necessary. We concentrate the craft where it is seen and touched — the court edge, the ceilings, the doors and the joinery — and let the steep terracotta-tiled roof do the heavy work of shedding three thousand millimetres of rain.
—Questions
A Naalukettu is the traditional Kerala courtyard house: four blocks — naalu kettu, literally 'four halls' — arranged around a central open court called the nadumuttam. The court cools the plan by drawing warm air upward, lights the deep middle of the house without opening it to the street, and takes the monsoon straight down into a drain at its centre.
Yes, and that is most of what we are asked for. The principle survives modern life very well; the historical plan does not always. We usually keep the court, the verandah ring and the roof logic, and rework the room sizes, kitchen, bathrooms and services entirely for how a family lives now.
Not if it is detailed properly. The court has its own sunken drain and a generous surrounding verandah, and the roof pitch throws water clear of the circulation. Many clients ask for a retractable or louvred cover; we usually design for the open court first and add the cover as an option.
A comfortable four-block Naalukettu with a usable court generally wants a plot from about 12 cents upward. On smaller plots we design a partial court — one or two sides open rather than four — which does most of the climatic work in a fraction of the footprint.
Usually somewhat, for the same built area: more external wall, more roof length, and often timber work that takes skilled hands. The running costs go the other way, because a properly oriented courtyard house needs far less cooling.