# Sustainable Architecture ## Definition **Sustainable Architecture** (also known as Green Architecture or Environmental Design) is the philosophy of designing physical objects, the built environment, and services to comply with the principles of social, economic, and ecological sustainability. It seeks to minimize the negative environmental impact of buildings by efficiency and moderation in the use of materials, energy, and development space. ## Core Pillars ### 1. Energy Efficiency Reducing the energy required to operate a building is paramount. - **[[Passive Design Strategies]]:** Using building orientation, shading, and natural ventilation to reduce the need for mechanical heating and cooling. - **[[Thermal Insulation]]:** High-performance envelopes to minimize heat loss/gain. - **[[Renewable Energy Systems]]:** Generating energy on-site via [[Solar Photovoltaics]] or wind turbines. ### 2. Material Stewardship - **[[Material Selection]]:** Choosing low-carbon, non-toxic, recycled, or renewable materials (like timber). - **Durability:** Designing for longevity to reduce the need for replacement. - **Waste Reduction:** Minimizing construction waste. ### 3. Water Conservation - **[[Rainwater Harvesting]]:** Collecting water for irrigation or toilet flushing. - **Greywater Recycling:** Reusing water from sinks and showers. - **Low-Flow Fixtures:** Reducing consumption. ### 4. Indoor Environmental Quality (IEQ) Sustainability is also about human health. - **[[Daylighting]]:** Maximizing natural light. - **Ventilation:** Ensuring fresh air supply. - **Non-Toxic Materials:** Avoiding VOCs (Volatile Organic Compounds). ## The Future Sustainable architecture is no longer a niche; it is a necessity. With the climate crisis, the building sector—which accounts for a significant portion of global emissions—must transform. The goal is moving beyond "less bad" to "regenerative" design—buildings that actually give back to the environment. ## Related Concepts - [[Green Building]] - [[Energy Efficiency]] - [[Passive House]] - [[Biophilic Design]]