Environmental Clerk of Works South East Strategic Reservoir Option; SESRO

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The Vacancy

The South East Strategic Reservoir Option (SESRO) is a landmark 150 million cubic metre reservoir near Abingdon. This project not only aims to secure vital water resources but also aspires to enhance biodiversity through new habitat creation and deliver new leisure and recreational amenities. Learn more about SESRO here:

The Vacancy

The South East Strategic Reservoir Option (SESRO) is a landmark 150 million cubic metre reservoir near Abingdon. This project not only aims to secure vital water resources but also aspires to enhance biodiversity through new habitat creation and deliver new leisure and recreational amenities. Learn more about SESRO here:

Binnies is proud to be working in joint venture with Arup as the delivery partner for SESRO, supporting Thames Water in securing a Development Consent Order (DCO) for this nationally significant infrastructure project. Together, we are responsible for all design, consenting, and environmental services for the integrated scheme.

Our Ecological Clerk of Works are currently supporting ongoing investigation works required to inform the design and DCO submission in late 2026. The need for ecological supervision is however increasing as the project evolves and we are looking to expand our team of dedicated Ecological Clerk of Works to play a key role in ensuring ecological compliance and best practice on site.

While SESRO will be your primary focus, you’ll also become a valued member of our national ecology and environmental team, with opportunities to contribute to other major infrastructure projects in the future. You can also join our active Ecological and Environmental Clerk of Works Communities of Practice.

If not already a full /chartered member of CIEEM we can provide mentoring. You will also benefit from technical, and H&S training and paid membership of two professional institutions.

Binnies is a registered Ecological (CIEEM) and Landscape Practice (Landscape Institute) and holds the IEMA (now ISEP) EIA Quality Mark. We also sponsor AECOW reflecting our commitment to promoting site based environmental roles.

About

The Role

Our Ecological Clerk of Works ensure that construction activities are carried out in accordance with environmental legislation, permits and mitigation strategies. You’ll work closely with contractors, ecological leads and survey co-ordinators to safeguard habitats and species, while supporting the programme of site works.

Your key responsibilities will be:

• Monitor construction activities to ensure compliance with ecological requirements and mitigation measures.
• Provide on-site ecological advice and guidance to contractors.
• Conduct ecological monitoring, pre-commencement surveys, and watching briefs.
• Liaise with investigation and engineering leads on their programmes and to ensure the appropriate ecological supervision.
• Maintain accurate site records and digital recording of incidental ecological constraints.
• Deliver toolbox talks and ecological awareness training to site personnel.
• Support the wider SESRO ecological surveys as required.

• Degree in an environmental related discipline
• Membership of CIEEM and/or AECOW
• Minimum of 3 years’ ecological survey experience
• Proven experience as an ecological clerk of works
• Strong interpersonal and communication skills
• Experience in GIS and digital collection tools
• Exemplar health & safety awareness and behaviours
• Full UK driving licence