Calculate the biodiversity impact of your project using South African habitat condition scores — and determine what offset or restoration is needed to achieve No Net Loss or Net Gain of biodiversity. Based on SANBI Biodiversity Offset Guidelines and the Business & Biodiversity Offsets Programme (BBOP).
NEMBA Act 10 of 2004SANBI Offset GuidelinesNBA 2018BBOP StandardNo Net Loss
📍 Project Impact Site
Total area of vegetation to be cleared or impacted
Check NBA 2018 threatened ecosystem list for your habitat type
🌿 Proposed Offset / Mitigation
BBOP & SANBI require avoidance first, then minimisation, then offset
SA restoration costs typically R50,000–R150,000/ha depending on ecosystem type
Biodiversity Impact Results
Biodiversity Loss
0
Habitat Units lost
Offset Required
0
Habitat Units to offset
Offset Ratio
0:1
offset : impact
Est. Offset Cost
R0
total investment
Biodiversity Impact Calculation — Step by Step
Offset Strategy Options
SA Legislation & Policy Framework
NEMBA
National Environmental Management: Biodiversity Act 10 of 2004
Governs the protection of threatened ecosystems and species. Biodiversity offsets are required where development impacts on NEMBA-listed ecosystems.
NEMA
National Environmental Management Act 107 of 1998
Section 24 EIA process requires consideration of biodiversity impacts. The mitigation hierarchy must be followed before an offset is proposed.
NBA 2018
National Biodiversity Assessment 2018
SA's authoritative assessment of ecosystem threat status. Used to determine offset ratios — Critically Endangered ecosystems require higher offsets.
SANBI
SANBI Biodiversity Offset Guidelines (2013)
Provides the framework and calculator methodology for biodiversity offsets in SA. Specifies offset ratios, habitat condition scoring and like-for-like requirements.