Designed by locallll and SUPHASIDH, the 100% Wooden House is a 55-square-meter prototype dwelling located in the park of Château de la Bourdaisière in Montlouis-sur-Loire, France. Completed in 2020 after winning a competition in 2019, the experimental project explores the potential of using wood exclusively for residential construction and challenges traditional housing models. Inspired by the historic Château while designed for contemporary life, the house is a single, monolithic volume wrapped in thick, weather-resistant wood that contrasts with the smooth, lighter finish of its interior. A fluid internal space is arranged around a central core, with an "interior topography" of varied heights creating distinct functional zones and offering a variety of possible spatial configurations. The interior features a ramp that doubles as a sofa, and different levels for sitting, cooking, and sleeping help to maximize the compact footprint. A covered terrace is located under the higher-level sleeping area. The project showcases a blend of traditional craftsmanship and modern technology. Untreated chestnut trees that had been previously felled on the castle grounds were processed at a local sawmill using CNC machines. This allowed for a short supply chain and the use of locally sourced materials. The entire structure is elevated off the ground on water-resistant acacia wood piles, allowing it to mimic the surrounding forest environment. All structural elements were prefabricated off-site for rapid assembly, with the cladding cut on-site. The exterior will develop a natural silvery-gray patina over time. The 100% Wooden House is part of an educational promenade in the Château park, feeding on ongoing research and experimentation with wood as a building material. Credits Architects: locallll (Matthieu Boustany, Benoist Desfonds) and SUPHASIDH (Peeraya Suphasidh) Local Executive Architect: Isabelle Poulain Architecte Contractors: Boussiquet Material Suppliers: Piveteau (CLT), Pavatex (insulation), l'André (sawmill) Photographer: Vincent Hecht