Extended Phase 1 Habitat Survey in Support of Planning Applications 

Balancing development with the protection of the natural environment has become a critical consideration in the UK planning process. Local authorities require ecological evidence before granting consent, ensuring that wildlife, habitats, and biodiversity are properly assessed and conserved. One of the most effective ways to achieve this balance is through an extended phase 1 habitat survey, which provides detailed information to guide planning decisions.

An extended survey helps developers and planners to understand the ecological value on-site. This enables early identification of risks and opportunities, helping projects move forward smoothly while meeting ecological and legal obligations.

What is an Extended Phase 1 Habitat Survey?

The extended phase 1 habitat survey retains the baseline mapping and classification of habitat types and analyses the site at a greater depth. Often referred to as a Preliminary Ecological Appraisal, it provides a detailed overview of a site’s ecological features while identifying potential constraints and opportunities.

The survey not only highlights broad wildlife habitats but also considers notable species, potential impacts from the proposed development, and the likelihood that further specialist studies will be needed. In this way, it offers a more robust environmental audit that informs decision-making for both developers and planning authorities.

Key Components of an Extended Survey

Desk Study

Before fieldwork begins, our ecological consultants gather and review existing data. This may include reports from local environmental data centres, information on protected species surveys, and maps that reveal how the land has been used historically. Reviewing these resources provides a crucial background to understand potential sensitivities within the landscape.

Field Survey

The site is then visited by one of our qualified ecologists, who systematically walks the area, recording all significant ecological features. During the walkover, our consultant will:

• Identify and map each habitat type present (e.g. grassland, woodland, or wetland).
• Record features of ecological importance such as hedgerows, ponds, ditches, or veteran trees.
• Note the presence of potential for notable protected species such as bats, badgers, or reptiles.
• Assess land management practices that may affect habitat quality, such as grazing or drainage.

Reporting

The team will then compile any findings into a clear professional report, which includes:

• A colour-coded map showing present habitats and how they are distributed.
• Written descriptions of each habitat and its ecological conditions.
• A summary of the potential for protected or priority species.
• Recommendations for further ecological surveys where needed.

By providing this level of detail, the extended survey supports compliance with planning regulations and contributes to sustainable outcomes.

When is an Extended Survey Required?

An extended phase 1 habitat survey is often commissioned early in the planning process, especially for sites that are larger or environmentally complex. Local planning authorities rely on their findings to understand ecological constraints and to decide whether additional studies are required before permission is granted and developments are given the go-ahead.

For example, if the survey identifies a pond that may support great crested newts or woodland with bat roost potential, it may recommend targeted protected species surveys. Similarly, if areas of semi-natural grassland are discovered, planners may require mitigation strategies to protect biodiversity.

Importantly, the insights gained can also support biodiversity net gain strategies, ensuring that nature conservancy is embedded within development. Accounting for all ecological factors from the outset increases the likelihood of projects gaining planning approval whilst delivering long-term benefits to the environment.

How Collington Winter Can Help

At Collington Winter Environmental, we provide comprehensive ecological consultancy services, including extended phase 1 habitat surveys, protected species surveys, and ecological mitigation advice. Our expert team is highly experienced in helping clients manage ecological risks, comply with planning requirements, and contribute positively to local ecosystems.

We work closely with developers, planners, and landowners to ensure ecological constraints are identified and managed effectively. From the first stages of proposed development to final planning approval, our tailored approach ensures your project is both compliant and environmentally responsible.

Contact Us

If you’re planning a development and need ecological advice, our specialists can provide the right level of support to meet planning requirements and protect biodiversity.

Get in touch today by filling out our contact form or calling 01024 939608, and a member of our team will be happy to assist you with all of your ecological needs.