Community Based Development, Jamuna Riverbank: Stilted Bamboo Homes for a Village That Floods Every Year

Most flood architecture treats water as an emergency. On the eastern bank of the Jamuna River, water is a calendar. For two to six months every monsoon, large parts of this settlement sit underwater, and families pack what they can and move onto embankments and dams to wait it out. Community Based Development for Annually Flood Affected People of Jamuna Riverbank, Sirajganj starts from a blunt premise: if the flood is guaranteed, the house should be built for it. The answer is not a wall against the river but a raised domestic world that keeps working while the ground below disappears.

Designed by তরিকুল ইসলাম অপু, the project addresses a settlement of roughly twenty acres in Sirajganj, a district that serves as a gateway between Bangladesh's northern districts and Dhaka by way of the Bangabandhu Bridge. That strategic position has not protected the riverbank from erosion or flooding. Two communities share the site: traditional fishermen who have lived here for generations, and seasonal fishermen who were once farmers until the river took their land. Their economic life gathers around the Motin Shaheber Ghat and a bamboo and fish wholesale market, and the proposal grows out of on-site surveys and observation of how these groups actually live and work.

Two Huts and a Walkway: Building a Network Above the Waterline

The physical model makes the core move legible in a single glance. Two bamboo huts rise on stilts above contoured water, joined by a raised walkway, with a goat and a boat placed within the scene. The connection matters as much as the houses. A single raised dwelling only solves shelter; a walkway between dwellings preserves neighbourliness, the ability to visit, share and cooperate when the ground is gone.

This is where the project's reading of the existing settlement pays off. Rather than imposing a new pattern, the designer builds on clustered housing and the social structures already in place. The boat and the goat in the model are not decorative props: they stand in for the two livelihoods, river and land, that the architecture has to carry through the wet season.

The Shared Courtyard as a Dry-Season Living Room

In the sunlit rendering, the ground between the raised thatch and bamboo houses becomes a courtyard: a stair drops down, a goat wanders, people occupy the open space. This is the dry-season face of the scheme, and it shows that lifting the houses does not mean abandoning the ground. The courtyard is where the daily work of these households can spread out, from net repair for the fishermen to crop processing for the seasonal farmers.

Shared courtyards, clustered homes and productive landscapes are named as the key spatial elements of the plan, and the image shows why. The house is only half the dwelling here; the other half is outdoors and communal. By keeping that half intact, the proposal treats resilience as a social condition as well as a structural one.

When the Water Arrives, the Platform Becomes Refuge

The monsoon rendering is the counterpoint to the courtyard. The same stilted bamboo houses now stand on a flooded platform, with a cow, a pig and a family under an umbrella sheltering in the rain. It is the scene the whole project is written for: people and animals staying with their homes instead of decamping to the embankment for months.

Livestock is a quiet but decisive presence across the drawings. For households whose income depends on animals, losing them to the flood can be as damaging as losing the house. Designing explicit space for cattle within the raised system acknowledges that, for these families, protecting livelihoods and protecting homes are the same task.

Concrete Below, Bamboo and Thatch Above

The annotated section is the most informative drawing in the set. Two raised thatch-roofed houses frame a shared courtyard, with stairs, cattle space and labelled materials. Concrete pillars take on the part of the structure that meets the water, while bamboo carries the frame above. The elevated plinth is set to keep living spaces above the highest recorded flood levels, and the space beneath the house is left open for cattle shelter, storage and temporary activities during the dry months.

The material logic is the project's strongest argument. Bamboo framing, thatch roofing and locally sourced organic materials keep costs low and remain familiar enough that residents can maintain and repair their homes with skills they already have. Roof and façade systems draw on thatch and sugarcane-based materials harvested from newly emerged land in the dry season, so the same river that floods the settlement also supplies part of its building stock. That is a closed loop worth noticing: construction tied to the seasonal rhythm of the place rather than to an imported supply chain.

The Annual Loss the Design Is Answering

The photographic collage brings the argument back to ground truth: flooded villages, tin-roofed homes, families salvaging belongings, with a note on the hardship of the yearly flood. Placed alongside the renderings, it clarifies the stakes. What the drawings propose is not an aesthetic upgrade but an end to a cycle of submerged homes, damaged possessions and months of disrupted work.

The documentation also explains the project's restraint. Faced with this kind of recurring damage, a more spectacular response would be easy to draw and hard to build. The proposal instead stays within what the community can afford and sustain, which is precisely what makes it credible.

Why This Project Matters

Flood resilience is often framed as engineering at the scale of embankments and barrages. This project argues for resilience at the scale of the household and the courtyard, where the real damage of annual flooding is felt. By lifting homes on concrete pillars and bamboo frames, keeping the ground beneath them productive, and linking dwellings with raised walkways, it lets a community remain a community through the months when the river claims its land.

Its most transferable lesson is methodological. The design begins with surveys of two distinct user groups, fishermen and displaced farmers, and builds its spaces around their actual work: boats, nets, crops and livestock. Paired with materials residents can harvest, build and repair themselves, that approach offers a model for riverbank settlements across flood-prone Bangladesh, one that asks how people live with water before asking how to keep it out.

View the Full Project

About the Designers

Designer: তরিকুল ইসলাম অপু

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Project credits: Community Based Development for Annually Flood Affected by তরিকুল ইসলাম অপু.