At the heart of a traditional Kerala home, there is often a little piece of the sky. Known as the nadumuttam, this open-to-the-sky courtyard defines the Nalukettu, an architectural form in which four wings meet around a central open space. During the monsoon, rain falls into it; sunlight travels across its floors throughout the day, and the surrounding rooms open towards this shared centre. It is an arrangement that makes the outdoors an integral part of domestic life. Built according to principles associated with Thachu Sasthra, Kerala's traditional architectural science, the Nalukettus are homes shaped by the state's humid climate, heavy rainfall and abundant natural materials. Sloping clay-tiled roofs, deep verandahs, timber pillars and shaded corridors were as much practical responses to the landscape as they were expressions of craftsmanship.
Historically, Nalukettus were associated with large ancestral households, particularly among affluent communities. Their spatial arrangements also reflected the social customs and family structures of their occupants, including matrilineal inheritance practices followed by certain communities. The architectural legacy of these homes offers an important record of Kerala's domestic history. Today, some survive as museums and heritage properties, while others continue to function as homes.
Kilimanoor Palace, Thiruvananthapuram
Located around 40 kilometres from Thiruvananthapuram, Kilimanoor Palace is an ancestral complex dating to 1753, closely associated with the Travancore royal family. It is also the birthplace of celebrated painter Raja Ravi Varma. Spread across several acres, the complex comprises traditional Kerala residential buildings, ponds, wells and sacred groves known as kaavus. Its Nalukettu follows the characteristic quadrangular arrangement, with four wings organised around a central courtyard and linked through corridors. Wooden pillars and carved details reflect the craftsmanship that went into these structures, while murals add to the complex's visual character.
The surrounding water bodies and vegetation are also significant, offering a glimpse into how traditional residential planning considered the relationship between built spaces and their natural surroundings. Unlike a palace conceived as one imposing structure, Kilimanoor developed as an interconnected residential landscape, with different buildings serving distinct domestic purposes. Families connected to the Travancore royal house have continued their association with the property, making it an important part of the region's living architectural heritage.
Address
Kilimanoor Palace Road, Kilimanoor, Thiruvananthapuram District, Kerala, 695601, India.
Paliam Nalukettu, Chendamangalam
One of the most historically significant examples of the form is Paliam Nalukettu in Chendamangalam, near Kochi. Built in 1786, the ancestral residence belonged to the Paliam family, an influential household in the erstwhile princely state of Cochin. Today, it is preserved as the Kerala Lifestyle Museum under the Muziris Heritage Project. Its main structure comprises four blocks arranged around a central courtyard, with a portico, inner hall and kitchen forming part of the larger residential complex.
The rooms were organised around the routines of a multigenerational household, with a common kitchen and dining hall serving its residents. An outer hall, or purathalam, provided a shared space for conversations and recreation. The household followed a matrilineal system of inheritance, and the building's layout and customs were closely connected to the lives and rituals of the women who lived there. Its museum interpretation presents these practices alongside the economic and social structures of the feudal period.
The Information
Address: 56FM+24R, Paliyam Rd, Bharanimukku, Chendamangalam, Keralam 683512
Timings: 10 am to 5 pm (Tuesdays to Sundays). It is closed on Mondays.
Tickets: The tickets are priced at approximately INR 55 per person, which covers access to both the Paliam Palace and the Paliam Nalukettu buildings located a short walk apart.
Contact: +91 480 2807717; muziris.tsm@kerala.gov.in
The Naalukettu, Orthodox Theological Seminary, Kottayam
At the Orthodox Theological Seminary in Kottayam, the traditional courtyard house has found a life beyond the domestic setting. Its three-storeyed Nalukettu, constructed using teakwood and traditional techniques, remains the official seat of the Malankara Metropolitan. The seminary itself dates to the early 19th century, with its foundation stone laid in 1813. At the centre of the building is an open courtyard, around which four halls are arranged and connected by passageways. The building is particularly significant because it demonstrates how a residential architectural form could be adapted to accommodate institutional functions without losing its defining spatial arrangement.
The open configuration allows daylight to reach the adjoining spaces and supports ventilation through the building. Individual rooms occupy the lower floors, while larger halls are located above. The use of teakwood and traditional construction techniques also reveals the precision of Kerala's timber architecture. A historical room within the structure preserves furniture associated with former Malankara Metropolitans, while other spaces retain objects connected to the institution's past.
Address
Pazhaya Seminary Rd, Chungam, Kottayam, Kerala 686001.
Kottayam Palace, Kannur
Located around 24 kilometres from Kannur, Kottayam Palace, also known as Thekke Kovilakam, dates to the middle of the 19th century. It belongs to the southern branch of the erstwhile Kottayam royal dynasty and preserves the Nalukettu form in the Malabar region. Its quadrangular layout centres on an open courtyard, while terracotta roof tiles, timber pillars and intricately worked ceilings reveal the craftsmanship of the period. The palace also occupies an important place in the history of the region, where traditional residential architecture developed alongside distinct political and cultural traditions.
The courtyard brings daylight into the interiors and connects the different wings of the structure. Deep roof overhangs help protect the walls from direct sunlight and monsoon rain, while verandahs provide shaded transitional spaces. Kottayam Palace is also a reminder that the Nalukettu was not a fixed architectural formula. Its essential quadrangular plan could accommodate regional variations in materials, ornamentation and spatial organisation while retaining its relationship with the climate.
Address
Thrikkaikunnu Shiva temple, Thrikkaikunnu Temple Rd, Kottayam-Malabar, Kerala 670643 (near Kuthuparamba in Kannur District).
Thai Kottaram, Padmanabhapuram Palace
At Padmanabhapuram Palace, near Thuckalay, the 16th-century Thai Kottaram is the oldest structure in the larger palace complex. Padmanabhapuram served as the capital of the erstwhile Travancore kingdom for more than two centuries, and its buildings reflect an accomplished tradition of timber construction. The Thai Kottaram retains the Nalukettu's characteristic arrangement, with rooms organised around a central courtyard. Its structure combines a granite base with a timber superstructure and a steeply sloping terracotta-tiled roof.
Intricately carved wooden pillars, doors, beams and ceilings demonstrate the precision of traditional carpentry. Built according to principles associated with Thachu Sasthra, the structure offers an example of how proportions, locally available materials and skilled workmanship came together in Kerala's historic architecture. Recognised on UNESCO's Tentative World Heritage List, Padmanabhapuram Palace is described as an outstanding example of traditional wooden architecture.
Address
Padmanabhapuram Palace, Padmanabhapuram Village, Near Thuckalay, Kanyakumari District, Tamil Nadu 629175, India.
The Nalukettu's enduring architectural value lies in how it works with its surroundings. Steeply pitched roofs shed monsoon rain, extended eaves protect walls from direct sunlight, and deep verandahs create shaded passages between indoor and outdoor spaces. These houses also carry the histories of the communities and social structures that shaped them. And their architectural ingenuity remains worth understanding. In a time when climate-responsive design is once again part of conversations about sustainable building, the Nalukettu offers an enduring lesson: a home need not shut out its landscape to provide shelter. Sometimes, it can make room for the rain, the light and the breeze.
FAQs
1. What is a Nalukettu house?
A Nalukettu is a traditional Kerala house built around a central open courtyard, known as the nadumuttam. Its four wings are arranged around this courtyard, creating an interconnected living space.
2. What are the main architectural features of a Nalukettu?
Nalukettus typically feature sloping tiled roofs, timber pillars, deep verandahs, wooden ceilings and a central open courtyard. These elements reflect traditional construction techniques and Kerala's climatic conditions.
3. Why were Nalukettu houses designed around an open courtyard?
The central courtyard allows natural light and air to enter the house. It also provides an open space within the home, allowing rainwater to fall directly into it during the monsoon.
4. What materials were traditionally used to build Nalukettu houses?
Traditional Nalukettus commonly used locally available materials such as timber, laterite, lime and clay tiles. Skilled carpentry played an important role in their construction and decorative detailing.
5. Where can you see examples of traditional Nalukettu architecture in Kerala?
Examples can be found across Kerala, including Kilimanoor Palace in Thiruvananthapuram, the Naalukettu at Orthodox Theological Seminary in Kottayam, Kottayam Palace in Kannur, Thai Kottaram at Padmanabhapuram Palace and Vakkayil Kottaram in Vaikom.
