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Simon leads the firm's environmental law team and is also head of the firm's energy and utilities sector. He is also closely involved in the development of the firm’s ESG programme (internal and external).

Simon is client relationship partner for several leading energy, utility, and resource/waste clients. That role gives him unique insight and understanding of the pressures and requirements that operators in those areas are subject to.

He works closely with those clients to understand what is important to them and how we can help them to achieve their goals.

Simon’s recent experience includes:

  • The defence of investigations and prosecutions by the Environment Agency, Natural Resources Wales, and the Marine Management Organisation.
  • An end of waste judicial review application.
  • The export, transport and recovery of resources and fuels into and out of the UK.
  • The interpretation of environmental permit conditions.
  • The disposal of former manufacturing facilities for US corporations for remediation and subsequent development.
  • Advising on the revocation of a hazardous substances consent.
  • The application of MEES and EPC controls to the real estate portfolio of a household name FTSE 100 company.

Simon is a member of CIWM and writes a regular column in their journal, he is a fellow of IEMA and delivers a quarterly legal update webinar for them. He has supported the Broadway Initiative and a group of legal experts who worked with DEFRA in relation to the formation of the new Environment Act 2021.

Sectors:

Services:

  • Simon Colvin provides outstanding client service. Pre-eminent in his field he provides insightful and pragmatic advice in an easy manner. A pleasure to deal with.

    Legal 500 2026

  • Simon is a highly skilled practitioner offering a superb service and advice in a highly pragmatic and friendly manner. Simon is a leader in the field. He has a great depth of understanding on environmental work. He has a really strong reputation and his finger on the pulse on environmental work.

    Chambers & Partners 2026

  • Simon Colvin leads the environmental law team at Weightmans and has deep expertise in waste-to-energy projects, as well as waste collection and disposal issues. He is recommended for his advice on liability and risk in transactions, in addition to his handling of various contentious matters.

    Chambers & Partners 2026

  • Simon is very conscious of what's happening in the UK environment and he is then able to provide us with sensible advice about how we can work around things.

    Chambers and Partners 2025

  • Simon Colvin brought deep knowledge and understanding. He has a pragmatic approach.

    Chambers and Partners 2025

  • Simon is efficient, focused and knowledgeable.

    Chambers and Partners 2025

  • Simon Colvin is excellent at understanding the technicalities and drawing them down to the key points.

    Chambers and Partners 2024

  • He's experienced, thorough and reliable across all disciplines.

    Chambers and Partners 2024

  • He's a responsive and commercially minded adviser with a wide breadth of knowledge. He has a very calm approach and manner which helps in difficult situations.

    Chambers and Partners 2024

  • Simon Colvin knows the business very well and is very pragmatic in seeking solutions to problems if they can be found.

    Legal 500 2024

  • Simon epitomises going the extra mile. He takes client instructions, analyses and produces a quick response.

    Chambers and Partners 2023

  • Simon Colvin demonstrates a very strong and reassuring level of competence.

    Chambers and Partners 2023

  • Simon Colvin provides a superb level of service. He is sharp and insightful and he quickly gets to the core of the issue and provides a comprehensive solution.

    Legal 500 2025