Mohma System Cabin: Sustainable Modular Living by Mangado&As + oiza.a

The Mohma System Cabin, designed by renowned Spanish architecture firms Mangado&As and oiza.a, represents a new benchmark in sustainable, energy-efficient modular architecture. Completed in 2022, this innovative project spans 323 ft², showcasing the potential of lightweight wood construction in delivering compact yet highly functional living spaces. Photographed by Pedro Pegenaute, the cabin exemplifies contemporary approaches to eco-friendly small-scale housing in rural Spain.

Industrialized Wood Construction for Sustainable Living

At the heart of the Mohma System Cabin lies Woodville’s cutting-edge modular construction system, which integrates industrialized production with dry, lightweight building technology. By leveraging engineered wood and its derivatives, the project achieves a remarkable balance of sustainability, functionality, and aesthetic expression. Engineered wood is uniquely suited for low-energy, affordable housing, thanks to its regenerable nature, global availability, and ease of manufacturing. This makes it a preferred material for modular and low-tech construction systems.

The cabin is built almost entirely from a single composite panel system, consisting of two structural wooden boards sandwiching an insulating core. These structural insulated panels (SIPs) serve dual purposes: they act as both structural elements and exterior enclosure, maximizing material efficiency and minimizing construction waste. Their versatility allows vertical and horizontal application, enabling architects to craft spaces that are both functional and visually striking.

Modular Design and Flexible Configurations

The Mohma System Cabin introduces a central module as the core living unit, ensuring comfort and practicality within a compact footprint. This module can be expanded with one or two additional wings, creating medium or large units with mezzanines that enhance usable space while preserving an open, airy feel. Despite its modest size, the cabin provides bright, simple, and highly efficient living spaces, earning an A Energy Rating for operational sustainability.

Designed for flexible assembly and industrialized production, the SIP-based construction is supported by a DfMA (Design for Manufacturing and Assembly) methodology. Woodville collaborates with a network of local suppliers and manages components through a digital twin, linked bill of materials (BOM), enabling responsive and scalable production to meet dynamic market demands.

Integration with Nature and Rural Tourism

The cabin’s curved, chameleon-like exterior allows it to blend seamlessly into natural surroundings, making it ideal for rural tourism, glamping, and remote work retreats. Its environmentally conscious design not only enhances the user’s experience but also aligns with sustainable tourism practices, offering a high-value accommodation product with low operating costs and minimal environmental impact.

With its innovative modular system, sustainable engineered wood construction, and elegant yet functional design, the Mohma System Cabin sets a new standard for eco-friendly micro-housing and modular cabins. It demonstrates how modern architecture can harmonize with nature, providing versatile living solutions for contemporary lifestyles while championing green building practices.

All photographs are works of  Pedro Pegenaute