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Case studies

Case studies offer insight into implemented technologies, methodologies, research, or practices, and provide an overview of real-life results, outcomes, lessons learned, and best practices.

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Case studies (220)
The image shows the façade of a building lit by the warm light of sunset, with tree-branch shadows cast across its pale surfaces. In the foreground, an outdoor area with fallen leaves and wooden furniture creates a natural and tranquil atmosphere.
A school that saves energy and gains comfort

A historic school enclave in France is transformed into a bioclimatic benchmark: natural materials, passive ventilation and a design that minimises energy use give shape to a bright, comfortable space connected to its surroundings.

Editorial team
The image shows a modern building with a large glazed façade rising above a sloped base, creating a sense of structural lightness. At dusk, its illuminated interior highlights the clean lines and contemporary design of the complex.
DFHOG redefines energy efficiency in offices

Efficiency, prefabrication and nature come together in the DFHOG Centre to create a building that minimises its energy demand thanks to green roofs and walls, an optimised envelope and a lightweight structural design that maximises natural light and improves indoor comfort.

Editorial team
The image shows a modern building with spacious terraces and glass façades, surrounded by greenery that softens its urban character. In the background, taller residential towers rise above it, creating a contrast between architectural scales.
Zero-Carbon collective housing in Xi’an

Shuiyifang Housing integrates photovoltaic generation, full electrification, and passive strategies to achieve near‑zero energy consumption and reduce operational costs, establishing a residential model with very low energy demand.

Editorial team
The image shows a multi‑storey residential building with a refurbished light‑coloured façade and dark panels on one end. Surrounding it are other similar blocks and an open grassy area.
First apartment building in Tartu renovated

Integrated renovation completed in Tartu, Estonia, under the EU-funded oPEN  Lab project, improving energy efficiency in a municipal residential building.

Editorial team
The space features a bright, spacious interior with exposed timber structure, where beams and floor slabs create a warm and orderly atmosphere. The combination of natural light, light‑coloured surfaces and timber elements conveys a sense of openness and comfort.
Energy efficiency at the Maritime Academy of Saint‑Malo

The Academy is a compact building with natural ventilation, a timber structure, and efficient façades that reduce thermal losses and energy consumption, achieving strong passive performance and an operation aligned with low‑energy objectives.

Editorial team
The building features modern architecture with clean lines, large windows and a light façade that conveys a sense of brightness. The scene includes a few people and vehicles in motion, suggesting everyday activity in the urban surroundings.
Architecture that drives efficiency at LSC Contern

A high‑efficiency building in Luxembourg that combines reversible heat pumps, self‑consumption photovoltaics, and an optimised envelope with natural insulation and a modular timber structure to achieve outstanding energy performance.

Editorial team
Showing 20 of 220 case studies