BNG
30 years of monitoring, handled.
Biodiversity Net Gain has been legally mandatory in England since Feb 2024 — 10% uplift, monitored for 30 years under the conservation covenant or S106. SAMRISK turns that 30-year burden into a recurring annual report you can submit.
Environment Act 2021 Schedule 7A. DEFRA biodiversity metric v4.
From calculator to covenant — one workflow
SAMRISK is the only platform that bundles the metric, the schedule, and the 30 annual submissions.
METRIC
DEFRA biodiversity metric v4 calculator
Per-parcel inputs — habitat group, distinctiveness, condition, strategic significance. For post-development parcels — time-to-target, difficulty, spatial risk multipliers. Units recalculated server-side every time a parcel changes. Live preview as you type.
- Habitat groups (Grassland, Woodland, Hedgerow, Watercourse…)
- Distinctiveness 0–8, condition 1–3
- Temporal / difficulty / spatial multipliers
- Hedgerow + watercourse sub-totals independently
METRIC
SCHEDULE
30-year monitoring schedule, generated in one click
SAMRISK creates 30 annual reporting slots from the assessment date. Each year a slot becomes "due"; the daily cron flips overdue slots and notifies the company manager.
- One-click generation of all 30 slots
- Year-by-year visual schedule
- Auto-flip to "overdue" past due_date
- Notification to company managers
SCHEDULE
SUBMISSION
Annual monitoring report template
Per-year reports capture observed units, whether the target is met, observations, and remedial actions if not. Status flow pending → submitted → accepted / remediation required. Replaces the £500–£2k an ecology consultant charges per round.
- Observed units against target
- Remedial actions field
- Status lifecycle with regulator acceptance
- Linked supporting documents
SUBMISSION
BNG — questions
The DEFRA spreadsheet is authoritative. SAMRISK's calculator is a faithful in-app rendition for working calculations; export to the spreadsheet for the final submission if your LPA requires it.