The Government has confirmed changes to Biodiversity Net Gain requirements
After months of speculation following the first indications of potential changes late last year, the Government has now confirmed amendments to the Biodiversity Net Gain (BNG) requirements.
The changes are intended to provide greater clarity and remove some of the uncertainty surrounding the application of BNG to smaller and shorter-term development proposals.
So what are the changes?
The amendments will take effect from 6 August 2026, provided that the development site does not contain priority habitat.
From this date:
Developments of 0.2 hectares or less will be exempt
Small development sites measuring 0.2 hectares or less will be exempt from the mandatory BNG requirements.
Short-term developments will be exempt
Short-term developments will also be exempt, provided that the planning permission relates to the whole site and the permission is granted for a period of less than five years.
Self-build and custom-build developments will no longer have a specific exemption
Self-build and custom-build developments will no longer benefit from a specific exemption from BNG.
However, the Government’s position is that these developments will typically fall within the new 0.2-hectare exemption, meaning that many smaller self-build and custom-build schemes may still not be subject to the mandatory BNG requirement.
What does this mean for developers and landowners?
While the amendments may appear relatively limited, they provide welcome clarity for those bringing forward smaller or short-term development proposals.
Greater certainty around when BNG requirements apply should help reduce uncertainty during the planning application process, support more consistent decision-making by Local Planning Authorities and, importantly, potentially help unlock more suitable development opportunities.
Get in touch!
If you are considering a development proposal and would like to understand how the changes to BNG may affect your site, please get in touch with Warner Planning to explore how we can assist.
How to get in touch…
Having a consultant involved in your project, is a great way to reduce the risk of errors and it can drastically speed up the timeline for achieving planning permission.
If you think you need support with your project, we’d be happy to help.
You can contact us directly via the details below, or if you would prefer, you can fill in the form below and one of the team will be in touch.
T: 01908 592580 E: info@warnerplanning.co.uk
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A Pre-Application submission offers the opportunity to test the principle of development and secure informal views on a scheme. Some feedback also highlights how a scheme might need to be amended to make it more acceptable prior to formal submission which is helpful to have this guidance at an early stage.
Pre-Application submissions are a great opportunity to provide high-level information about a proposal without the commitment of a full suite of technical reports being required. This allows the Council to provide an initial secure and informal view and allows them to influence proposals without the cost and resources associated with a formal application. Mostly Pre-Applications remain confidential so any proposals are not usually publicised externally which can be helpful with any local sensitivities or commercial considerations.
If a positive Pre-Application is received this can be a positive addition to support any land-sale if a site is looking to be disposed of. Whilst a positive Pre-Application is not a guarantee for future success it can be used to support any future application and sets out the positive approach that has been taken to Council engagement.
A Pre-Application submission helps to alert Officers to the potential for further formal submissions in the future. If Officers have had previous involvement with a Pre-Application enquiry it can put any subsequent submission in a more positive light as it isn’t being presented ‘cold’ to the Council. Officers often appreciate this approach.
Once a formal submission has been made following a Pre-Application enquiry, Officers will often consider this in the context of how open/flexible they are to negotiations/receiving amended/additional information. Many Councils will be more amenable to discussions if a Pre-Application was submitted initially, so beginning with this process can provide additional benefits.
A Pre-Application response can highlight any technical matters which are likely to be significant as part of any formal application to allow time/resources to be allocated prior to a submission and hopefully lessen the risk of not securing Officer support. A Pre-Application response also often provides a list of information which will be required for validation which can save time and money in the long run!
Once good working relationships have been established with Officer during a Pre-Application it can often result in early notice of any key relevant events at the Council e.g. notification of a Call for Sites which can be helpful to get ahead of the curve of the process.