Planning support for a former carp hatchery, Thorner


In 2018 we were approached by an existing client, whom we had previously supported by assessing the hydrological setting and production capacity of their existing carp hatchery. This had allowed them to secure planning approval to remove the agricultural planning tie of the buildings and associated curtilage, in order for their family to live on the site and for the hatchery business to cease.

Conditions attached to the planning approval required our client to undertake earth and drainage works, landscaping and biodiversity enhancements. We were appointed to carry out the assessment and design work and secure the relevant approval of details reserved by the planning conditions.


Our biodiversity staff surveyed the site and drafted a Construction and Environmental Management Plan (CEMP) and Biodiversity Environmental Management Plan which was approved by the local planning authority (LPA).

Our landscape architects and drainage engineers produced a design for infilling one of the hatchery on-growing ponds in accordance with British Standard BS 4428:1989 Code of Practice for General Landscape Operations.

Our contaminated land specialists produced a fill material testing specification in accordance with CLR 11 Model Procedures for the Management of Land Contamination and acceptance criteria derived from The LQM/CIEH S4ULs for Human Health Risk Assessment.

We reviewed the contractor’s Statement of Construction Practice and made recommendations for edit to the client. We also reviewed the fill material test results and audited the construction stage to validate that the earth, drainage, landscaping and biodiversity enhancement works had taken place in accordance with the approved schedules and designs.


Our work secured the approval of all details reserved by the planning conditions. On completion of our work the client said:

‘I would like to thank you and your team for all of your efforts over the past 5 years, we definitely couldn’t have done it without you. JBA have been very professional throughout the entire process’

Want to know more?

For more information about this project, email Jon Whitmore. Jon is one of our Technical Directors who previously worked with the Fisheries department of the Environment Agency for over 10 years and has a wealth of experience of multi-disciplinary design project management. You can also find out more on our Fisheries web pages.

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