FLORA Observatory by IAAC – An Ecological Research Tower in Barcelona’s Collserola Natural Park

The FLORA Observatory, designed and built by the Institute for Advanced Architecture of Catalonia (IAAC), is an innovative ecological research facility located in Collserola Natural Park, Barcelona. Completed in 2022, this unique project combines sustainable architecture, forest ecology, and scientific research to create a living laboratory in the heart of one of the city’s most important natural reserves.

A Living Laboratory in the Forest Canopy

FLORA – short for Forest Lab for Observational Research and Analysis – is an advanced wooden structure that allows researchers to live and work directly in the forest canopy. Rising over 8.5 meters in height, the observatory provides immersive opportunities to monitor biodiversity, birdlife, and climate change impacts within the Mediterranean ecosystem.

Inspired by the pioneering work of biologist Margaret D. Lowman (Canopy Meg), the observatory enables scientists to carry out long-term canopy studies. Its design incorporates spaces for observation, ornithological research, and climate monitoring, alongside temporary living quarters for researchers.

Sustainable Materials and “Kilometer Zero” Philosophy

The project reflects IAAC’s strong commitment to circular construction and sustainable forestry practices. Students from the Master in Advanced Ecological Buildings and Biocities (MAEBB) program harvested seventy pine trees from Collserola Park under a Sustainable Forest Management Plan. These trees were carefully processed into cross-laminated timber (CLT) panels, laminated beams, and solid wood components at Valldaura Labs, ensuring complete traceability and a zero-kilometer construction approach.

The structure rests on laminated timber pillars, with long bridges connecting different observation areas. Natural cork panels provide thermal and acoustic insulation, while a handwoven digital net camouflages the tower, encouraging plants to grow and integrate the architecture seamlessly with the surrounding forest.

Architecture in Harmony with Nature

Beyond its scientific purpose, FLORA embodies an architectural prototype for ecological living. Designed to minimize environmental impact, the observatory is self-sufficient and blends into its forest context. The wooden tower, netted façade, and elevated walkways create an immersive experience for both researchers and visitors, reinforcing the bond between architecture, science, and ecology.

Climate Research and Biodiversity Monitoring

Collserola Natural Park spans over 8,000 hectares and is highly vulnerable to climate change, droughts, and forest degradation. FLORA plays a vital role in documenting these changes by enabling real-time research on carbon absorption, water cycles, and biodiversity health. The observatory includes:

• A weather station for microclimate analysis.
• Birdhouses and ornithological equipment for avian studies.
• Spaces for projecting data and conducting educational activities.

By focusing on the forest canopy ecosystem, FLORA contributes critical knowledge to global conversations on climate resilience, carbon storage, and forest management strategies.

All Photographs are works of Adrià Goula