Statutory 10% BNG — delivered end-to-end.
Baseline ecology, statutory metric calculations, on-site and off-site unit strategy, Section 106 / conservation covenants, and 30-year monitoring and reporting under the Environment Act 2021.
Indicative bands — final scope confirmed after a 20-minute discovery call.
Practice positioning.
Since February 2024, most new planning permissions in England must deliver a minimum 10% Biodiversity Net Gain, measured using the statutory Biodiversity Metric and secured for at least 30 years. From April 2024 this extended to small sites, and Nationally Significant Infrastructure Projects (NSIPs) come into scope in late 2025. CAS works across the full BNG lifecycle — for developers needing planning consent, for landowners monetising habitat as off-site units on the national register, and for Local Planning Authorities (LPAs) building internal capacity to validate BNG submissions. We combine ecology, MRV and credit-market expertise so BNG outcomes are credible, defensible and tradeable.
How CAS delivers.
Baseline & metric
UKHab Phase 1 / 2 habitat survey, condition assessment, and statutory Biodiversity Metric baseline for the development and any receptor sites.
BNG strategy
Mitigation hierarchy, on-site enhancement design, off-site unit gap analysis, and a costed delivery plan aligned to planning policy.
Securement & units
Habitat Management and Monitoring Plan (HMMP), Section 106 or conservation covenant drafting, and off-site unit procurement or registration on the national BNG register.
Monitor & report
30-year monitoring with satellite and drone MRV, annual condition reporting, and remediation triggers if habitats underperform.
What's included.
What you receive.
Standards & frameworks.
Discuss this capability with CAS.
Senior practitioners brief governments, registries, project developers, and enterprise climate teams on implementation pathways.