When it comes to sustainable buildings, there are a bunch of cool features to consider. First off, you’ve got energy efficiency. This means using things like better insulation, energy-efficient windows, and solar panels to cut down on energy use. It's all about reducing that carbon footprint while saving some cash on utility bills! Then there’s water conservation. Smart designs incorporate low-flow fixtures and rainwater harvesting systems to minimize water waste. Also, using sustainable materials is super important—things like bamboo, reclaimed wood, or recycled steel not only look great but are better for the planet. Lastly, think about the location. Building in a way that encourages public transport and walkability can reduce reliance on cars, making it easier for people to get around without contributing to traffic and pollution. All these elements come together to create spaces that are not just functional but also kind to the environment!