In the heart of the calm and discreet neighborhood of Lasne Chapelle, this remarkable architectural achievement unfolds its contemporary lines within a green setting of approximately 1.17 hectares, where landscaped gardens and wooded areas intertwine. Designed in close dialogue with its environment, this unique place offers beautiful views of the surrounding nature from its elevated position, extending to the silhouette of the Saint-Germain church on the horizon.Behind its bold architecture, the property reveals a particularly refined design, where generous volumes, natural light, and fluid spaces create a living experience that is both elegant and serene. Here, aesthetic demands align with remarkable energy efficiency, evidenced by an A+ energy performance certificate and high-performance features that bring the house close to passive housing standards.The reception areas are organized around a spacious, light-filled entrance hall that opens onto a dining room overlooking the landscape and a living room where the open fireplace invites more intimate moments. The kitchen, featuring an open fire and custom-designed in a distinctly contemporary style, extends to a large covered terrace with an open fire, offering a natural transition between the interior and exterior. An office with its own independent access completes this level. Upstairs, the master suite opens to the horizon and includes a dressing room as well as an en-suite bathroom. Five additional comfortable bedrooms are located on this level, four of which benefit from their own dressing rooms and en-suite bathrooms. A laundry room enhances the organization of this family-oriented space.Designed as a true extension of the home, the wellness area features a natural stone-bordered swimming pool and a pool house that includes a gym and shower. The basement houses a bioclimatic wine cellar made of natural bricks, a garage that can accommodate four vehicles, and a workshop, while an elevator ensures easy circulation between the three levels.Geothermal heat pump, photovoltaic panels, dual-flow ventilation, UV-protected frames, and other technical equipment reflect a rigorous approach to performance and sustainable comfort. The overall design not only captivates but also anticipates usage, values natural resources, and prioritizes controlled indoor comfort in every season.More than just an architect-designed villa, this property offers a true residential experience, where the generosity of space meets the softness of light, where nature becomes a daily landscape, and where energy excellence fully contributes to the art of living.A rare address in Lasne, intended for those seeking the combination of characterful architecture, a privileged environment, and a contemporary vision of sustainable living.