Whole Life Carbon (WLC) comprises the total greenhouse gas emissions associated with a particular building over its entire life— through the product and construction stages, it´s everyday use (including operational energy and maintenance/replacement), end‑of‑life, and the potential benefits beyond the site boundary. Assessing WLC through life‑cycle assessment (LCA) helps developers and customers compare options, set carbon budgets, and make trade‑offs between upfront and in‑use emissions to achieve the lowest overall impact.