1. Introduction
  1.1 Background and significance
  1.2 Research objectives
2. Sustainable architecture principles
  2.1 Energy-efficient design strategies
  2.2 Use of renewable materials
  2.3 Water conservation techniques
  2.4 Waste management and recycling
3. Green building certifications and standards
  3.1 LEED (Leadership in Energy and Environmental Design)
  3.2 BREEAM (Building Research Establishment Environmental Assessment Method)
  3.3 WELL Building Standard
4. Case studies of sustainable architecture projects
  4.1 The Edge, Amsterdam
  4.2 One Angel Square, Manchester
  4.3 Bullitt Center, Seattle
5. Evaluation of long-term sustainability
  5.1 Environmental impact assessment
  5.2 Life cycle analysis
  5.3 User satisfaction and well-being