Integrated water system
- Rainwater: Roof greening, treatment, retention, infiltration
- Wastewater: root zone sewerage treatment plant
  with Imhoff tank and polishing pond, purification to bathing
  water standard
- Drinking water substitution, Reuse of treated wastewater for   toilet  flushing and irrigation
- Water conservation technology, Water meters in each unit,
  4-litre flush toilets, pipe-inpipe system
- Solid waste separation and composting