Habitat Condition Assessment

Habitat Condition Assessment

We undertake evidence-led habitat condition assessments for Biodiversity Net Gain, habitat management, monitoring and ecological evaluation.

Habitat condition describes the quality of a habitat rather than simply its type or area. It is an important part of ecological evaluation and a key input to the statutory biodiversity metric.

Each habitat parcel is assessed using the criteria applicable to that habitat under the current statutory metric guidance. Criteria may relate to vegetation structure, botanical diversity, management, physical damage, invasive species, hydrology and other indicators of ecological quality.

Richard Green Ecology can provide condition assessment for:

• Grassland
• Woodland
• Scrub
• Heathland
• Wetland
• Urban habitats
• Hedgerows
• Ponds
• Other terrestrial and linear habitats
• Rivers and streams through the separate River Condition Assessment process

A field-based assessment

A reliable condition assessment normally requires an appropriately timed field survey. Condition should not be assigned solely from aerial photographs, broad habitat mapping or assumptions about management.

Survey timing can be particularly important for grassland and other habitats where botanical composition forms part of the condition criteria. If a survey is undertaken at a suboptimal time, we will identify any limitations and advise whether another visit is required.

We provide:

• Habitat-parcel mapping
• Completed condition-assessment sheets
• Supporting species information
• Photographic evidence
• Identification of failed criteria
• Advice on opportunities to improve condition
• Realistic post-development condition targets
• Monitoring assessments against agreed targets

Condition and Biodiversity Net Gain

Habitat classification and condition assessment are connected but separate processes. A habitat may be correctly classified but still require detailed evidence before its condition can be determined.

The statutory metric does not replace professional ecological judgement. Target conditions must be realistic, compatible with the proposed land use and supported by an appropriate management and monitoring plan.

A BNG condition assessment does not replace detailed botanical, NVC or protected-species survey where this is required to understand the ecological value of a site.