Aquatic Alveolus: Underwater Architecture Designed as a Living Marine Community

Aquatic Alveolus, a project by Violet Lam and Sharron Clark, explores this question through an ambitious vision for underwater architecture in which habitat, infrastructure, energy, food production, research, and transportation are integrated into one interconnected marine community.

Recognized as a Shortlisted entry of EHC - Pacific, the proposal imagines human occupation beneath the ocean not as a collection of isolated structures, but as a network of architectural systems working together. Its conceptual organization borrows directly from the anatomy of the human body: the energy infrastructure becomes the heart, the residential pods become the lungs, and the connecting transportation tunnels operate like veins.

This biological analogy gives Aquatic Alveolus both its spatial identity and its organizational logic.

Underwater Architecture Inspired by the Human Body

The central idea behind Aquatic Alveolus begins with circulation.

Instead of placing buildings independently across the seabed, the designers organize the settlement around a central infrastructural system. At its core are the community's energy sources, conceived as the metaphorical heart of the underwater habitat.

Around this center sit clusters of individual living pods. These become the lungs, spaces where inhabitants sleep, gather, work, research, and recover.

Connecting them is a continuous network of tunnels that acts like a circulatory system. These architectural "veins" move people between residences, laboratories, gardens, transportation stations, food-production zones, and community facilities.

The result is an approach to underwater architecture based on interdependence. Each element has an individual function, yet the settlement depends on all of them operating as part of a larger system.

An Aquatic Armature Shapes the Living Pods

The architectural language of Aquatic Alveolus is distinctly fluid.

Rather than importing rigid terrestrial building forms beneath the water, the proposal develops curved armatures that appear responsive to movement, currents, and marine geometries. The drawings describe a generative formal sequence based on repeated rotations, producing layered structural ribs that wrap around the pods.

These ribs establish both enclosure and openness.

Parts of the structures remain visually permeable, allowing inhabitants to maintain a relationship with the surrounding ocean. Other sections become more enclosed where privacy, services, or structural protection are required.

The resulting pods appear almost skeletal. Their overlapping members produce an organic shell that sits somewhere between architecture, marine biology, and engineered infrastructure.

This is particularly important to the project's identity. Aquatic Alveolus is not simply architecture placed underwater. Its forms attempt to visually belong to the environment in which they exist.

Living, Research, and Community Spaces

Inside the pods, the proposal organizes everyday life across multiple levels.

The lower portions accommodate essential community and residential functions, including sleeping quarters, kitchens, dining areas, indoor gardens, circulation zones, and access to submarine stations.

Upper levels are dedicated more heavily to research activities.

Laboratories, libraries, and study areas occupy positions where the design can maximize access to natural light. This creates a spatial hierarchy in which private residential functions remain more protected while research spaces connect more directly with the surrounding aquatic environment.

The designers also explore an open-plan approach to the interior.

Instead of subdividing every function into conventional rooms, the curved shell creates continuous spaces with smaller semi-enclosed zones for privacy. Sleeping and living areas become integrated into the architecture rather than treated as independent boxes.

The result reinforces the project's larger concept: life beneath the ocean requires a different relationship between structure, space, infrastructure, and community.

Transportation as Part of the Architecture

Mobility is one of the most developed aspects of Aquatic Alveolus.

The project proposes two complementary transportation systems.

For movement within the settlement, interconnected community tunnels link the individual pods. The drawings indicate tunnels approximately seven to eight feet wide, giving researchers enough space to walk or cycle between different parts of the community.

These tunnels are not treated purely as corridors. They become social and infrastructural spaces that connect the settlement into one continuous network.

For longer journeys, each living quarter is supported by access to a submarine station.

The project's maritime hub proposes small submarines capable of carrying approximately six people, providing transportation between the underwater community and the surface as well as access to more distant areas.

This layered transportation strategy allows Aquatic Alveolus to operate at multiple scales. Walking and cycling support everyday circulation within the habitat, while submarine mobility connects residents to the wider ocean.

The architecture therefore extends beyond the walls of individual pods. Movement itself becomes a fundamental part of the habitat.

Energy at the Heart of the Community

Aquatic Alveolus places energy infrastructure at the physical and conceptual center of the settlement.

Water turbines are represented as the heart of the community's energy system, reinforcing the project's anatomical metaphor.

Rather than hiding infrastructure, the proposal makes it central to the spatial organization.

This is a notable architectural decision. In many conventional developments, energy systems are placed at the edges of the site or concealed within service zones. Here, infrastructure becomes part of the identity of the settlement.

The community is visually and functionally organized around the systems that sustain it.

This relationship between architecture and infrastructure strengthens the project's vision of underwater living as a self-supporting network rather than an isolated architectural object.

Food Production Beneath the Ocean

Food supply is integrated into the broader ecological strategy.

Aquatic Alveolus proposes fish farming as one component of the community's food-production system. Aquaculture could provide a local source of protein while operating alongside the underwater settlement.

The project also introduces what it calls Nemo's Garden, a series of enclosed cultivation environments intended for growing vegetables and fruits.

Together, these systems suggest that underwater architecture must extend beyond shelter. A viable habitat must consider how inhabitants obtain food, water, energy, transportation, recreation, and access to research facilities.

That systems-oriented thinking is one of the strongest aspects of Aquatic Alveolus.

Instead of designing only the residential unit, Lam and Clark attempt to design an entire way of living.

Marine Gardens as Spaces for Observation

The project also acknowledges that an underwater community should offer more than technical survival.

A dedicated coral garden creates an area where researchers and residents can observe the surrounding marine environment.

This introduces an experiential dimension to the proposal.

Views of marine ecosystems become part of daily life, transforming the ocean from an external condition into a central component of the architecture.

Indoor planted areas reinforce this connection between habitation and ecology. Vegetation is incorporated into interior communal spaces, providing another layer of contrast between engineered underwater construction and living systems.

Together, the indoor gardens and coral-viewing areas position nature not as scenery added after the architecture is complete, but as part of the spatial experience itself.

Materials for an Extreme Marine Environment

Designing underwater architecture requires more than an evocative form. Material performance becomes fundamental.

Aquatic Alveolus proposes a combination of acrylic, marine-grade stainless steel, reinforced concrete, and steel.

Transparent acrylic surfaces provide visual access to the ocean while forming parts of the protected enclosure. Stainless steel is proposed for structural elements because of the demands created by prolonged exposure to saltwater and corrosive marine conditions.

Concrete and reinforced steel form more substantial portions of the habitat, including walls, openings, floors, stairs, ceilings, and other structural elements.

The proposal therefore combines lighter transparent components with heavier structural systems, creating a contrast between openness and protection.

This material strategy responds to one of the fundamental contradictions of underwater habitat design: residents need visual connection with the ocean, while the architecture must simultaneously resist immense environmental forces.

Architecture Under Pressure

Water pressure is one of the major challenges addressed by the proposal.

The curved geometry of the pods is not merely aesthetic. Rounded and continuous forms are particularly relevant to underwater construction because they offer ways of distributing external forces across a structure.

Aquatic Alveolus uses its ribbed armatures and shell-like forms to explore this relationship between geometry and structural resistance.

The architecture consequently acquires its visual character from the conditions of its environment.

Rather than forcing a conventional building typology beneath the Pacific, the proposal investigates how pressure, circulation, material performance, and marine occupation might collectively generate a new architectural language.

Juror Begoña Fernandez-Shaw on Aquatic Alveolus

Juror Begoña Fernandez-Shaw, Principal Partner at Rojo/Fernandez-Shaw Architects in Spain, recognized the breadth of the proposal and its ability to operate across both domestic and community scales.

She described Aquatic Alveolus as a “very interesting and very beautiful proposal,” highlighting how successfully it works simultaneously as a living unit and a larger community.

Fernandez-Shaw also specifically noted the project's attention to multiple systems required for long-term underwater habitation, including energy, food and water supply, recreation, and structural responses to water pressure.

Her assessment reinforces an important strength of the project: Aquatic Alveolus does not treat underwater living as a visual experiment alone. It attempts to address the practical networks required to sustain an entire community.

At the same time, the juror identified a significant point requiring further development.

Her principal concern was the project's reliance on a concrete structure settling on the ocean bed.

The observation introduces an important environmental question. If future iterations of Aquatic Alveolus were developed further, the relationship between the habitat and the seabed could become a major area of investigation, particularly in terms of foundations, ecological disturbance, reversibility, and long-term marine impact.

Rather than diminishing the project, this critique points toward the next layer of research necessary for speculative underwater architecture to move toward greater environmental responsibility.

A Community Rather Than a Single Building

Perhaps the most compelling aspect of Aquatic Alveolus is its understanding of architecture as a network.

The proposal is not centered on one monumental underwater structure.

Instead, individual pods, tunnels, turbines, gardens, laboratories, food systems, submarines, and community spaces form a distributed settlement.

Each component performs a specific function, but none is conceived in isolation.

The heart needs the lungs. The lungs need the veins. The veins connect inhabitants to food, energy, research, recreation, and mobility.

Through this analogy, Violet Lam and Sharron Clark transform basic infrastructural requirements into an architectural concept.

Aquatic Alveolus and the Future of Underwater Architecture

Aquatic Alveolus presents underwater architecture as an ecosystem of connected relationships.

Its significance lies not only in the unusual environment it occupies, but in the way the project connects architecture with energy production, transportation, food cultivation, marine research, communal life, and environmental observation.

The proposal imagines an underwater settlement where infrastructure becomes architecture and architecture becomes part of a larger biological metaphor.

Living pods act as lungs. Water turbines form the heart. Transportation tunnels become veins. Gardens, research laboratories, submarine stations, aquaculture systems, and communal facilities complete the organism.

As a Shortlisted project for EHC - Pacific, Aquatic Alveolus offers a speculative yet highly developed exploration of how humans might inhabit the ocean while remaining connected to the systems surrounding them.

It proposes that the future of underwater living may not depend on designing a single perfect submerged building.

Instead, it may depend on designing communities that behave more like living systems: interconnected, adaptive, resource-conscious, and inseparable from their environment.