Historic Luxembourg building is metamorphosed into an eco-friendly powerhouse

October 3, 2018 by  
Filed under Eco, Green

Paris-based Vincent Callebaut Architectures has placed first in POST Luxembourg’s international design competition with its chrysalis-inspired vision for transforming the telecommunication company’s historic headquarters building into a carbon-neutral city landmark. Dubbed the Metamorphosis of the Hotel des Postes, the winning design includes nearly 120,000 square feet of mixed-use space comprising housing, co-working, retail, a brewery, restaurant and a permaculture rooftop garden. Although the design calls for a significant revamp of the structure’s energy systems, the architects will also take care to preserve the building’s historic architectural elements that date back to the turn of the 20th century. Designed by the government architect Sosthène Weis in the early 1900s, the historic building is mainly built of stone and reinforced concrete but has also been remodeled over the years with several extensions. Vincent Callebaut Architectures will begin its “metamorphosis” of the property by removing three of the extensions and then carefully inserting new changes, which include transforming the interior courtyard into a covered atrium. Central to the redesign is the addition of a chrysalis-inspired, multi-story volume in an oblong shape as well as a photovoltaic cell-studded glass “solar dome.” “[Our goal is to] reveal the intrinsic heritage qualities of the building and highlight them with contemporary architecture that assumes its era,” the architects explained. “Between history and modernity, between heritage and innovation, this metamorphosis presents a project reinforcing the patrimonial identity of the place by transforming the historic building into a showcase of contemporary, ecological architecture. Low-Tech and high-tech are therefore in tune to serve this exceptional project.” Related: Five bridges topped with urban farms could revitalize war-torn Mosul Designed to meet carbon-neutral status, the project aims to consume less than 30 kWh of energy per square meter annually and meet near net-zero energy targets. The building will not only be powered with renewable energies such as solar, wind and biomass, but it will also be renovated to follow passive design principles and updated with an airtight building envelope, double-glazed windows and highly efficient insulation. Metamorphosis of the Hotel des Postes is currently seeking approval from the local government. + Vincent Callebaut Architectures Images via Vincent Callebaut Architectures

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Historic Luxembourg building is metamorphosed into an eco-friendly powerhouse

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