Drivers of the Business Case The Business Case Strengthening the Case: Social Value The Social Value Case Future-Proofing The Value Proposition CASE STUDY Net zero emissions with eight year payback period National University of Singapore School of Design and Environment campus redevelopment • The National University of original structure, modulating • Preliminary occupant survey Singapore redevelopment of solar radiation, natural results have also shown high the SDE4 building represents ventilation, and rain, and hosting levels of occupant satisfaction the first purpose-built net zero a full array of photovoltaic panels with the environmental energy building in Singapore to meet the energy demands of conditions created within the the building building. • It exceeds current standards for environmental quality by • The project demonstrates a ensuring equitable access to commitment to reduced material views, daylight, air, greenery, and expenditure and embodied community spaces carbon by using the original structural frame • The development has achieved certification from a range of • The project has helped challenge local and international rating negative assumptions around tools including BCA Green Mark comfort and cost of sustainable Platinum, BCA Green Mark buildings in the equatorial region, Design Prototype — Net-zero presenting evidence that it has energy, WELL Certification Gold, limited additional cost compared WELL HSR Rating and ILFI Zero to similar, industry-standard Energy certification models. The cost premium to include sustainability features • The development has been within similar public buildings designed to be highly energy in Singapore was described efficient and climate-sensitive, as ‘marginal’. The return on consuming only as much energy investment for the rooftop as it creates, utilising solar photovoltaic system has been roofs, a hybrid cooling system, innovative ventilation systems, and passive architectural calculated to be 8 years, at which point it will offer operational cost savings DESIGNED TO BE HIGHLY ENERGY EFFICIENT AND structures that provide shade. CLIMATE-SENSITIVE The renovation wraps the A WORLD GREEN BUILDING COUNCIL REPORT | 55