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Clement CastagnasCC

Clement Castagnas

Sustainable Building Project Manager

€350/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Clement

Project Manager specializing in sustainable buildings, I support companies in structuring, managing, and optimizing their projects.

I work on energy transition and environmental performance issues, particularly within the framework of certifications such as HQE or BREEAM.

I also support organizations in improving their processes and operational efficiency:

Strategy definition and project structuring
Implementation and monitoring of KPIs / reporting
Internal organization optimization
Knowledge management structuring
Creation of management tools (Notion, Asana, Excel)

My typical interventions:
Audit and project structuring (organization, planning, roles)
Implementation of project management tools (Notion, Excel, Reporting, )
Support on sustainable building projects (HQE, BREEAM)
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

Can work on-site
Paris (up to 50km), Toulouse (up to 50km)

Experience

  • G-ON Paris
    Sustainable Building Project Manager
    CIVIL ENGINEERING
    August 2025 - October 2025 (2 months)
    • Support for environmental certifications (BREEAM, HQE)
    • Project feasibility studies
    • Conducting technical studies (Mobility, waste, pre-LCA, etc.)
    • Client relations and project monitoring (planning, budget, progress meetings)
    • Improvement of work tools and templates (Notion, Excel, Word)
    Project Management Process Improvement Notion Sustainable Building
  • Galiano Conservancy Association British Columbia,
    Ecological Engineering Technician
    January 2024 - January 2025 (1 year)
    Canada
    • Restoration work on damaged ecosystems (wetlands, forests, meadows)
    • Awareness of conservation measures in aquatic environments.
    • Collection and analysis of environmental data (mapping, indicator monitoring).
    • Preparation of grant applications
    • Control of invasive species and propagation of native plants.
    Nature-based Solutions Ecological Transition Agriculture and Forestry Environmental Awareness
  • Horisis Conseil
    Sustainable Building Consultant
    January 2023 - January 2024 (1 year)
    Lyon, France
    • Creation of a dedicated sustainable building unit: Development of the action plan, project management plan, writing of quality procedures for projects
    • KPI definition and monitoring, budget monitoring, schedule control and reporting.
    • Development of indicators and improvement of internal work templates (Excel).
    • Development of a knowledge capitalization process (360 Learning)
    • Development of commercial strategy and partnerships
    Definition and Monitoring of Indicators (KPI) Project Management Knowledge Management Process Optimization

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Education

  • Master in Environmental Law, Engineering and Management
    ISE
    2024
    Master Management Ingénierie et Droit de l'Environnement
  • Master of Science in Sport
    Université Paul Sabatier
    2018
    Master en Sciences du Sport

Skill set

Categories