Case studies

The conversion of a farm in Louvain-la-Neuve combines circularity, material reuse and modular design to create a social workspace with low energy consumption.

The transformation of a former garage space in Brussels redefines the use of the inner courtyard, integrating workspaces and green areas with a focus on reuse and social cohesion.

China Overseas Tower in Shenzhen positions itself as China’s first near-zero-energy 5A high-rise office, combining passive design, high-efficiency systems and quantified carbon savings to establish a replicable benchmark for hot summer–warm winter climates.

The former Paul Van Ostaijen monastery in Leuven (Belgium) was transformed into a CO₂-neutral complex through the integration of 155 terracotta-colored photovoltaic panels. Seamlessly blended into the historic roof, they preserve the building’s identity while enabling sustainable performance.

A 100 kWp photovoltaic system with 260 green modules is seamlessly integrated into the historic copper roof of the Vienna State Opera. Designed to preserve its Neo-Renaissance identity, the project blends solar technology with heritage, reducing energy demand without altering the iconic skyline.

GrünboX-Vienne transforms a disused industrial building through circular economy principles and sober design, achieving significant CO₂ and water savings while proposing a replicable model for sustainable urban regeneration.

The refurbishment of Greenpeace Belgium’s headquarters illustrates how strategies based on simplicity, reuse, and user-centred design can reduce energy impacts without relying solely on complex technologies, proposing a replicable approach for sustainable office buildings.

The A Fighera case articulates an integrated approach to energy efficiency in collective housing, combining an optimised building envelope, intelligent management and renewable energy sources.

The redevelopment of Usquare.brussels and the Herman Teirlinck building illustrates how full lifecycle planning supports energy‑efficient design, long‑term operation, and the integration of sustainability principles in complex urban and building projects.

China Fortune Plaza in Shanghai applies an integrated approach to limit energy demand in office operations, combining fabric performance, system optimisation and on-site renewables.