Work out green building score instantly with clear inputs, formula shown and shareable results.
Green building rating systems award points across categories such as energy, water, materials, indoor environment and site. Thresholds define certification levels. Because energy typically carries the most points, it dominates strategy — but the cheapest points are often in categories nobody has considered.
Rating score
Points achieved = sum of category points; rating determined by threshold bands
Green building certification criteria, point allocations and thresholds are set by the specific scheme and version. Confirm against the applicable rating manual.
Usually documentation and process credits, commissioning, and site and transport credits determined by location. Energy credits deliver the most points but cost the most capital.
Not necessarily. Design-stage ratings predict rather than measure performance, and the performance gap between predicted and actual energy use is often large. In-use certification schemes address this.