The Wave Office by H.a: A Lightweight, Sustainable Workspace Rooted in Reuse and Regeneration

 Architects: H.a 

A Sustainable Workspace Born from Urban Voids

In the coastal city of Vũng Tàu, Vietnam, The Wave Office emerges as a bold reimagining of urban infill. Designed by H.a, this compact 80-square-meter office stands as a prototype for flexible, low-cost, and eco-conscious workspaces constructed on short-term leased lots. Built on a narrow 4x20 meter plot—commonplace in the region—this temporary office redefines how vacant urban land can be reactivated, offering not just space, but inspiration.

With a five-year lease and tight budget, the architects sought to craft a lightweight, mobile, and regenerative structure. In doing so, they challenged traditional office design by integrating nature, reused materials, and a modular construction system that can be dismantled and rebuilt elsewhere.

Design Concept: Minimum Intervention, Maximum Utility

The design begins with a single, defining architectural gesture—a long, undulating roof structure made of interlocking recycled wooden slats mounted on a light steel frame. Positioned between two existing townhouse walls, the roof becomes the main organizing element, shaping spatial zones through changes in height and transparency.

• Open slat areas allow filtered sunlight to enter, nurturing greenery and creating the feel of a garden.
• Denser slats create cooler, shaded zones reminiscent of enclosed interiors.

This approach blurs the boundaries between inside and outside, forming a series of functional yet flexible "rooms" without rigid walls.

Materials and Craft: Architecture of Utilization

Every material used in The Wave Office is a celebration of resourcefulness and reuse.

• Roof slats were made from discarded wood—leftovers from lumber mills, usually burned or milled into plywood.
• Flooring consists of randomly arranged cover stones salvaged from local stone-processing factories.
• Trees and vegetation were either pre-existing on-site or transplanted from other nearby construction projects.

The construction team comprised the architecture studio’s own staff and carpenters from its affiliated workshop. Woodworkers doubled as ironworkers, and architects took part in landscaping—making the process deeply collaborative and intimate.

“The office may look simple,” the architects share, “but it is filled with care, effort, and affection.”

Adaptability and Regeneration: Architecture on the Move

The Wave Office isn’t just temporary—it’s designed to migrate and evolve. Its demountable, bolt-fastened system allows for effortless relocation without the use of mortar or permanent adhesives. In fact, once the original lease expired, the structure was completely dismantled and rebuilt on a new site—maintaining its form, spirit, and even materials, except for the stone floor, which couldn’t be moved.

This makes The Wave an architectural model for mobile sustainability—a structure that can shrink, grow, and adapt depending on future needs and site conditions.

A New Model for Urban Infill Workspaces

By embracing impermanence, The Wave Office offers a visionary alternative to wasteful construction practices on short-term plots. Its lifecycle-based design and regenerative structure align with modern sustainability goals, making it a prime example of how small-scale architecture can have large-scale impact.

All photographs are works of  Hoang Le