Collington Winter Environmental
Biodiversity Net Gain & Habitat Banking
Chartered ecologists delivering BNG assessments, statutory metric calculations and habitat bank offsetting for developers and landowners throughout England.
Our Biodiversity Net Gain Services
Biodiversity Net Gain Guidance
Our team provide guidance throughout the planning system process, from the initial land purchase agreements to monitoring assessments.
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Biodiversity Net Gain Assessments
Providing Biodiversity Net Gain assessments within a development's proposal will soon become essential in order to receive the appropriate planning permission.
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Biodiversity Net Gain Mitigation
Our ecologists have the experience to recommend any necessary mitigation methods you may require in order to reach biodiversity net gain requirements.
Learn moreAbout Collington Winter
Collington Winter Environmental was founded with a belief in a pragmatic approach to development. Meeting the needs of developers, whilst ensuring positive outcomes for wildlife.
We provide ecology and landscape architecture services for a holistic and innovative approach to development. We are fast paced problem solvers, working with clients to find solutions where others can't.
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Our Experience
A Landscape Architecture and Ecology consultancy with a depth of experience in the creation, restoration, management and conservation of landscape and habitat — from small urban parks, private gardens and new country houses to agricultural, commercial and equestrian landscapes and historic country estates.
Our work is rooted in a thorough understanding of the importance and uniqueness of place. We work closely with our clients to create innovative, sustainable and inspirational landscapes.
What Our Clients Say
5.0 on Google Reviews
“We have used Collington Winter many times as they provide us with the quick, high-quality service we need. Rhiannon and the team are a delight to work with.”
“I'd certainly recommend Collington Winters. They have supported us on a number of projects and consistently provide an excellent service.”
“Fantastic services provided by the team at Collington Winter for our projects in the UK.”
“I had a great experience with Collington Winter Environmental. The team are friendly and always go above and beyond.”
“The guys at Collington Winter were fantastic. Prompt, polite, communicative and very clear in their report both onsite and after. I was really impressed with their honesty and integrity.”
Biodiversity Net Gain Guides
What is Biodiversity Net Gain? A Plain-English Guide
What is Biodiversity Net Gain? Biodiversity Net Gain, usually shortened to BNG, is an approach to development that aims to leave biodiversity in a measurably better state…
Habitat Banking: Selling Biodiversity Units from Your Land
Habitat banking: selling biodiversity units from your land Habitat banking means creating or enhancing habitats so that the resulting biodiversity gains can be allocated …
Biodiversity Metric Calculations for Planning Applications
Biodiversity metric calculations for planning applications Biodiversity metric calculations translate mapped habitats and proposed changes into a structured measure of bi…
Biodiversity Gain Plan: Content, Submission and Approval
Prepare a biodiversity gain plan that connects your statutory metric, habitat proposals, off-site allocations and long-term management.
Biodiversity Net Gain Consultant
Practical BNG consultancy, from habitat surveys and metric calculations to deliverable biodiversity gain plans for development in England.
BNG Exemptions: Does Biodiversity Net Gain Apply?
Understand statutory BNG exemptions, transitional permissions and the evidence needed to explain whether your development is within scope.
BNG Planning: Requirements for Development in England
Understand BNG for planning applications, validation evidence, small sites and the biodiversity gain condition before work starts.
BNG Units: Buying and Using Biodiversity Units
Understand biodiversity units, off-site purchases, habitat banks and the difference between commercial units and statutory credits.
Areas We Cover
BNG assessments, metric calculations and habitat banking throughout England, from our base in Bolton. Popular areas include:
Latest from the Blog
News and articles on ecology, habitat banking and biodiversity net gain.
Is Biodiversity Net Gain Mandatory? What Developers Need to Know
Nov 12, 2026
Is Biodiversity Net Gain mandatory in England? Yes: Biodiversity Net Gain is mandatory for most development within the English statutory planning framework, subject to ex…
How to Achieve Biodiversity Net Gain on Your Development
Nov 12, 2026
How to achieve Biodiversity Net Gain on your development Achieving Biodiversity Net Gain means designing, securing and delivering a measurable improvement in habitats, ra…
Biodiversity Net Gain 2024: Guidance on new rules
Feb 1, 2024
In 2024, Biodiversity Net Gain emerges as a leading force in the United Kingdom’s efforts toward environmental conservation and sustainable development. BNG represents an…
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