Our in-house experts we have long-standing relationships with our enviable network of specialist consultants including Ecologists, Hydrologists, expert Landscapers and many more at our fingertips. This enables us to offer our clients a comprehensive and holistic approach, drawing on our combined knowledge and experience to offer the best service possible.

Hydrology & Flood risk

Corylus has a plethora of experience in Hydrology. We advise landowners who are at risk of flooding and provide specialist consultancy services to those who are seeking to develop in areas at risk of flooding. Our multi-disciplinary team advises on the statutory requirements relating to flood risk and drainage. This helps ensure these requirements are considered throughout the design process. Enabling full integration into the overall scheme from the outset, allows us to provide a robust and comprehensive service to all of our clients.

Our services include:

  • Flood risk/consequence assessments for all sectors of developments
  • Design of Sustainable Drainage Systems (SuDS) schemes
  • Expert witness in water related disputes
  • Flood protection and mitigation including property level protection
  • River modelling
  • Design of hydrological monitoring systems

We advise a number of prestigious developments that lie within areas at risk of flooding and require the highest quality in hydrology solution and designs. Clients choose to work with us repeatedly, appreciating the high quality of our output and collaborative consultancy approach to each project.


With a pragmatic approach to ecology, we work closely with our clients to develop positive strategies and designs that provide excellent biodiversity benefits. We provide ecological expertise on a wide range of projects from small scale residential to large infrastructure projects. Our team have a wealth of experience and we pride ourselves on our efficient and innovative solutions. Our ecologists have experience working on difficult and highly complex projects, including the Lower Thames Crossing. The team also has specialist expertise in large-scale residential developments, as well as quarry restoration schemes.

Our services include:

  • Extended phase one habitat survey's
  • Protected species surveys; Great Crested Newts, Badgers, Bat Emergence and activity, Barn Owl, Reptile, Otters, Water Voles and bird surveys
  • Preliminary ecological appraisals
  • Ecological impact assessments
  • Ecological clerk of works
  • Habitat regulations screening and assessments
  • Post-construction ecology reports
  • Ongoing monitoring and site maintenance strategies

Want to discuss how Corylus can help you?

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