Why some Chinese villages are building round houses: The extraordinary story behind Fujian earth buildings | World News

From above, they look like giant donuts carved into the landscape. From the ground, they look more like medieval fortresses than family homes. The towering earthen walls, narrow entrance and spacious wooden interior seem designed for defense rather than domestic life. Yet behind these grand facades lies one of the most striking examples of public life in China.Known as Fujian Tulou, these huge earth buildings are where entire families have lived for generations, bringing grandparents, parents and children together in one building. Built primarily by Hakka people in the mountains of Fujian Province, they combined safety, practicality and social cohesion in a way that still feels surprisingly modern today. Long before sustainable architecture became a design concept, builders of tulou began building homes that harmonized with the landscape, cleverly utilized local materials and fostered an extraordinary sense of community.

What are Fujian earth buildings and why they are built as round houses

The giant round buildings scattered across the mountains of southeastern China are called Fujian Tulou, a name that means “earth building.” While circular examples have become their defining image, not every earth building follows the same blueprint. Some are square or rectangular, but they all have the same underlying purpose: to protect and accommodate a large family.according to UNESCOThe 46 Fujian earth buildings listed on the World Heritage List were built between the 15th and 20th centuries, although the architectural tradition itself dates back to earlier periods. Some of these massive structures are capable of housing up to 800 residents, effectively functioning as self-sufficient villages enclosed within a single set of walls.UNESCO aptly describes them as “little kingdoms of families” and “bustling little cities”, which is an unusually vivid description for a heritage listing but perfectly captures their scale.The round design is not decorative at all. In an era when rural communities could face attacks from bandits or hostile groups, tulou provided protection without sacrificing daily life. Thick rammed earth walls, a heavily guarded entrance and several openings in the ground formed a strong defensive barrier. Inside, families can continue their daily lives in a surprisingly normal way while being protected from the dangers outside.Their placement is equally well thought out. According to National Geographic, many of the earth buildings are positioned according to traditional Feng Shui principles, balancing mountains, rivers and farmland to create settlements that live in harmony with the natural landscape. UNESCO considers them outstanding examples of architecture that respond not only to human needs but also to the environment.

How hundreds of people lived together under one roof for centuries

A Fujian earth building has never been an ordinary house. It is designed as a complete community.Stepping into the heavy wooden door, the atmosphere changed instantly. Instead of narrow corridors or isolated rooms, visitors see a wide central courtyard surrounded by several levels of wooden galleries. Despite being surrounded by tall earthen walls, the space feels open, almost village-like.Life follows a carefully organized rhythm. The kitchen and pantry usually occupied the ground floor, while the upper floors were reserved for bedrooms. The central courtyard becomes the social heart of the building, hosting family gatherings, celebrations, meetings and daily conversations. Many tulou also feature ancestral halls, public wells, and shared workspaces, allowing residents to meet almost all of their daily needs without leaving the tulou.Each branch of an extended family typically occupies a vertical portion of the building, with rooms stacked directly on top of each other. It’s an elegant solution that ensures fairness while keeping the family together. Everyone has their own private space, but no one is alone.UNESCO notes that earth buildings embody the “organization of public life and defense” over the centuries, a description that remains surprisingly relevant today. At a time when loneliness has become a growing social problem in many parts of the world, these centuries-old buildings are a fascinating reminder of the way architecture can shape the way people interact with each other.Their construction is equally clever. Built primarily from locally sourced rammed earth, wood, bamboo and stone, these unusually thick walls are naturally insulating, keeping the interior cool during Fujian’s humid summers and warm during the colder months. The builders achieved comfortable living conditions using only natural materials and practical experience accumulated over generations.

Why Fujian Tulou remains one of China’s greatest architectural wonders

The enduring appeal of Fujian earth buildings lies not only in their unusual appearance but also in their extraordinary balance between engineering, sustainability and human connection.In 2008, UNESCO listed Fujian Tulou as a World Heritage Site, recognizing it as an outstanding example of public housing, defensive architecture and harmonious settlement planning.Perhaps even more impressive is their longevity. Constructed of compacted earth rather than concrete or steel, many earth buildings have withstood hundreds of years of earthquakes, heavy rains and changing climatic conditions. Their resilience continues to attract architects, engineers and conservation experts interested in traditional sustainable building methods.This interest will only grow as modern architecture increasingly seeks environmentally responsible solutions. The earth building proves that durable, climate-sensitive buildings can be built using local materials, thoughtful planning and an understanding of the site, rather than just technical sophistication.Many of these remarkable buildings are still inhabited today, while others have become cultural landmarks that welcome visitors from all over the world. Strolling through it feels less like visiting a historical monument than entering a vibrant community where architecture, family life and history have been intertwined for centuries.The Fujian Tulou ultimately challenges the modern assumption that larger communities require greater isolation. Their builders envisioned something different: a place where hundreds of people could live together, support each other and still feel at home. Centuries later, those massive circular walls still tell the story very well.