Planning Permission Warrington: New BNG Rules

When embarking on a new development project, specific procedures must be followed in order to facilitate the project’s progression. Obtaining planning permission can be a complex but necessary process for those wishing to start a new development project.

New rules which come into force from 12th February 2024 mean that biodiversity net gain will become a mandatory component for all development projects.

Planning Permission, Warrington: The process

Before submitting a formal application, it is advisable for planning applicants to seek pre-application advice from the local planning authorities. This can help clarify requirements and identify any potential issues or discharge of conditions that may be applicable further down the line.

Once you are ready to proceed, submit a planning application to the local planning authority. Applications can be submitted online through the Planning Portal or directly to the local authority.

The local planning authority will validate the application, checking if all necessary documents and information are provided. Incomplete applications may be returned.

The local planning authority will make a decision based on planning policies, relevant considerations, and public input. The decision can be approval, approval with conditions, or refusal.

More information can be found on planning permission, Warrington, can be found on the Warrington Borough Council website.

Biodiversity Net Gain for planning permission, Warrington

Biodiversity net gain is now a mandatory requirement for obtaining planning permission, Warrington. When submitting a planning application, including a BNG assessment as part of the proposal will now be required.

 From 12 February 2024, BNG will be mandatory for new planning applications for major developments. Major developments include residential developments with 10 or more dwellings or if the site area is greater than 0.5 hectares.

Biodiversity net gain will be made mandatory for small sites from April 2024. Small sites include residential developments where the number of dwellings is between 1 or 9 or if the site area is less than 0.5 hectares.

Small sites also include commercial developments where floor space created is less than 1000 square metres or the overall site area is less than 1 hectare.

Other ecological requirements

When making an application for planning permission, Warrington, other ecological constraints may need to be considered. The most common ecological requirements include:

Ecological Surveys: Submission of comprehensive ecological surveys and assessments to identify existing flora, fauna, and habitats on the project site. These surveys often involve studying the site’s ecosystems, and ecological value.

Protected Species Assessment: Determination of whether any legally protected species, such as endangered animals or rare plants, are present on or near the development site. This may require surveys for species like bats, birds, amphibians, and reptiles.

Tree surveys: A thorough assessment is made of how the proposed development may affect the health, structure, and stability of existing trees. This includes evaluating the potential for root damage, soil compaction, and changes in water availability.

These ecological requirements are important for key areas such as sites of special scientific interest and conservation areas.

How Can Collington Winter Assist With Planning Permission in Warrington?

Collington Winter Environmental believe in a pragmatic approach to development. We meet the needs of developers whilst ensuring positive outcomes for wildlife. We believe that an early consultation and in-depth knowledge of ecological best practice is the best way to improve your chances at obtaining planning permission, Warrington, and ensuring your project complies with Warrington planning requirements.

If you are interested in our services, contact us using the form below. You can also contact our Ecology Director, Olivia Collington, via email at

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