Nutrient neutrality - what developers need to know

This section of the webpage contains all the information you should need for your application. It is critical that water quality is robustly considered during the determination of relevant planning applications in Havant Borough in order for any planning permission to be considered lawful.

The Position Statement and Mitigation Plan for Nutrient Neutral Development and accompanying European Sites Avoidance and Mitigation Checklist sets out how development proposals should consider the issue. This sets out the mechanisms for development to achieve nutrient neutrality.

For development to calculate their occupancy rate which will be used in the applications nutrient budget they should use and submit the Council’s occupancy calculator.

The Council has produced the following process notes to provide a step by step explanation for what applications need to do in order to address nutrient neutrality.

Natural England’s most up to date advice for achieving nutrient neutrality and calculating the nutrient budget for planning applications can be found below:

Natural England’s new advice can be found below:

Please note Natural England advise that at present some elements of the guidance (national methodology, nutrient budget calculators) issued by Natural England should be considered as provisional due to the outstanding appeal to the Court of Appeal in Wyatt v Fareham BC [2021] EWHC 1434 (Admin), which although not concerned with the national methodology issued on 16th March 2022, could impact on certain elements contained within the methodology because that case considers similar (but not identical) earlier guidance for the Solent region.

Natural England intends to review the national methodology following judgment in the appeal in Wyatt which may require amendments to be made.

The council has also commissioned the following reports which have informed our approach to this issue:

Water Efficiency Calculator

For guidance on how to complete a water efficiency calculator and what should be included please refer to Appendix A (pages 36-44) of the ‘The Building Regulations 2010 – Sanitation, hot water safety and water efficiency’.