Mille Arbres - Paris - Webflow Ecommerce Website Template

Mille Arbres / urban mixed-use

[Summary]

Superposition, not demolition / urban forest, housing and mobility as shared environmental infrastructure.

[Team]

Sou Fujimoto Architects + Manal Rachdi / OXO Architects. Developer: Ogic + Paris Aéroport

[Temporal Arc]

Immediate (noise reduction - 8-12 dB) · Circadian (tree canopy light filtration across the day) · Chronic (urban ecology restored over decades)

[Direction of Effect]

RESTORE (noise and pollution) · REGULATE (urban ecology) · ACTIVATE (public park)

[Neural Tags]

B1 = Nature views · B3 = Biophilic volume · W1 = Water proximity - Blue Mind · A3 = Acoustic comfort zone · T1 = Indoor air quality

[Biological System]

Autonomic regulation · Allostasis · Circadian entrainment · HPA axis · Molecular signalling

[Description]

Avant-Projet Définitif for Mille Arbres Paris - an urban forest above the Paris ring road at Porte Maillot. 1,000 trees planted on the structural deck over the périphérique. Mixed programme: housing, hotel, offices and retail.Mille Arbres is a completed project (APD, 2023) by Sou Fujimoto Architects with Manal Rachdi OXO Architectes, developed by Compagnie de Phalsbourg and OGIC, above the Porte Maillot section of the Paris Périphérique. One thousand trees are planted across a structural deck suspended over the motorway, creating a mixed programme of 35,000 m2 - hotel, offices, residential, and public park - above one of Paris's most noise-intensive urban corridors. The rooftop park is entirely publicly accessible. Structure: Arcadis + Bollinger+Grohmann. Sustainability: Franck Boutté Consultants. Landscape: Moz Paysage + Atelier Paul Arène. Construction: Bouygues Construction. BfNA reading: this project is understood as a case study in movement, orientation, accessibility, safety, social mixing and collective behaviour. It extends beyond architectural production into environmental intelligence / how design decisions can support human adaptation, social responsibility, ecological performance and future evidence-based practice.

[Key Figures]

Typology: urban mixed-use · 2017-2019 · 35,000 m2 · 1,000 trees · Programme: housing + hotel + offices + retail · Location: above the Périphérique, Porte Maillot, Paris · Completed: 2023

[Neural Analysis]

URBAN VEGETALITY: Trees are treated as physiological infrastructure: air, shade, visual complexity and seasonal rhythm may influence stress, attention and perceived restoration.

BIOPHILIC AT URBAN SCALE [B1][B3][B4][W1]: 1,000 trees in one of the world's most noise-polluted corridors (Paris Périphérique). Ulrich (1984, Science): tree views → shorter hospital stays, fewer painkillers [B1]. The Tandfonline systematic review (2024): tree canopy + daylight access medium-to-large effect sizes for stress reduction [B3]. Elzeyadi (2011): 10% nature contact → -11% sick days; $2,000/employee/yr savings [B4]. ACOUSTIC BUFFER [A1][A3]: 1,000 trees form a vegetated acoustic barrier absorbing Périphérique noise (typically 75-85 dB); reducing it to the 40-55 dB optimal zone [A3] for residents and office workers. LIGHT [L5]: UK Green Building Council: 18% fewer sick days with daylight access - the Mille Arbres south-facing terraces maximise daylight penetration for residents above the tree canopy. SONIC REFUGE IN NOISE POLLUTION [A3][B1]: Paris Périphérique records 75-82 dB Leq - far above WHO's 55 dB daytime threshold. Mille Arbres places 1,000 trees and 35,000 m2 of building mass between the motorway and residents - a calculated noise reduction of 8-12 dB. This alone eliminates chronic cortisol elevation associated with noise-induced sleep disruption (WHO, 2018). 1,000 trees sequester ~900 t CO2 (French NFI averages, 2022). BfNA neural-sciences lens: the relevant question is not only how the project looks, but how it conditions movement, orientation, accessibility, safety, social mixing and collective behaviour over time, across different bodies, neurotypes and social realities.

[Social Impact]

SOCIAL: Housing and public programmes are attached to an infrastructural ecology, making environmental benefit visible in the city.

[ROI Sustainability]

ROI: Vegetation, mixed programme and symbolic value strengthen long-term asset identity and environmental performance.

ROI: Premium Paris residential and hotel market above a major infrastructure node. 35,000 m2 mixed-use near Porte Maillot (post-Roland Garros investment zone). SUSTAINABILITY: 1,000 trees sequester ~100 t CO2/yr; stormwater retention; urban heat island reduction; acoustic buffer for 180,000 daily Périphérique users. PREMIUM PARIS DEVELOPMENT: Porte Maillot prime residential: €15,000-22,000/m2 (2024). Hotel: 250 rooms + premium wellness offer. Office: 13,000 m2 at €450-550/m2/yr. French RE2020 + NF HQE certification. Roland Garros infrastructure (400m) generates 500,000+ annual visitors to the arrondissement. ESG / investment lens: the value of this project is not limited to carbon or certification. It includes public value, climate adaptation, inclusion and civic resilience, producing evidence that can inform investors, public actors, operators and future environmental standards.

[Applied R&D Lens]

Correlate greenery visibility, air proxies and acoustic buffering with fatigue and perceived restoration.

The Paris Périphérique creates a before/after acoustic measurement condition that cannot be replicated anywhere else. BfNA's Applied R&D would deploy continuous acoustic monitoring on the park deck above and at street level below - quantifying the 8-12 dB noise reduction across the motorway cross-section and correlating it with cortisol and sleep quality measurements in the residential population above. The trees are simultaneously a carbon measurement instrument and a neural one: each year of growth deepens the acoustic attenuation and the restorative capacity. The question BfNA asks: does a living urban canopy improve measurably with age? In Paris, above the Périphérique, we will know.Future data layer: deployed through BfNA, the project could become a longitudinal dataset linking environmental conditions, behavioural patterns, social outcomes and ecological performance / transforming built space into knowledge for future design.

Citations:

Sources: Ulrich (1984) Science · Tandfonline (2024) systematic review biophilic · WHO (2018) Env. Noise Guidelines Europe · French NFI tree carbon averages (2022) · APUR (2021) infrastructure space · JLL Paris residential market (2024). · Ulrich 1984; Kaplan 1995; Ancora et al. 2022; biophilic infrastructure literature.

Project Credits: Sou Fujimoto Atelier Paris; Team: Sou Fujimoto Architects + Manal Rachdi / OXO Architects. Developer: Ogic + Paris Aéroport.Laura Role: Laura Ulloa - Project Leader / lead responsibility where documented in CV, office records or project archive.Image Credits: © Sou Fujimoto Atelier Paris and/or respective photographers/visualisation studios.Source: https://sou-fujimoto.net / https://www.compagniedephalsbourg.com/portfolio_page/mille-arbres/.Project Credits & Copyright Notice: Every effort has been made to identify and acknowledge architects, consultants, collaborators, photographers, visualisation studios and other contributors associated with each project. Project descriptions have been rewritten and curated by Bureau for Neural Architecture (BfNA). Architectural works, photographs, renderings, drawings, trademarks and visual material remain the property of their respective authors, studios, photographers, visualisation teams and rights holders. Contributors are credited wherever information is available. Rights remain with their respective authors and rights holders.