
Buy NN Credits
Learn More About Our Available NN Credits
At BioMark, we provide verified Nutrient Neutrality credits exclusively within the Teesmouth Catchment Area. These credits can be purchased to offset unavoidable nutrient outputs, helping developers to meet planning requirements with confidence.
Calculating Nutrient Levels
To meet Nutrient Neutrality requirements, developers must calculate the nutrient budget of their proposed development, ensuring there is no net increase in nutrient pollution to protected habitat sites.
At BioMark, we provide verified Nutrient Neutrality credits exclusively within the Teesmouth Catchment Area. These credits can be purchased to offset unavoidable nutrient outputs, helping developers to meet planning requirements with confidence.
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A Guide to Calculating NN
Step 1
Select the appropriate catchment calculator provided by Natural England.
Step 2
Enter site details and proposed land usage to estimate nutrient outputs.
Step 3
Compare results against baseline nutrient levels to identify any increase.
Step 4
If a surplus remains, purchase off-site NN credits to offset impacts and achieve compliance.
What BioMark Offers

Verified Nutrient Mitigation
BioMark offers a network of verified nutrient mitigation sites designed to offset nutrient impacts caused by new developments.
Practical Solutions

Ecological and Legal Assurance
Our credits come with full ecological and legal confidence. Every site is approved by local authorities and monitored long-term to guarantee compliance with NN requirements.
Compliant Delivery

Streamlined Processes
From calculation to certification, BioMark makes achieving NN simple. Our experts provide guidance every step of the way, helping developers secure credits quickly, avoid costly planning delays, and stay on schedule.
NN Made Simple
Why Choose BioMark?
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Trusted by Planning Authorities and Natural England
Transparent, Competitive Pricing
Real Environmental Benefits
We have successfully obtained Nitrate Mitigation and BNG units for a number of our projects with assistance from BioMark. The process was extremely quick and easy. BioMark are always on hand to answer questions and assist with the planning application process when dealing with the necessary mitigation and the legal documentation required. I would have no hesitation to recommend BioMark
Director, Wardman Brown
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