Surabaya Green Architecture contractor Clustering Content Analysis Environmental Engineering OTTV Sustainability architecture building envelope clay construction energy energy saving expansive soil fly ash house ideology informal sector land use location owner quality control resident's satisfaction settlement soft set stabilization teaching workability "Four-P" 3D visualization : ISO 9000 ARCHITECTURE ART ART, INDUSTRY Adaptive Self-Tuning PID Controller (STCPID) Aggregate Gradation Airborne Sound Annual Radiation Received Apartment Architect Architectural Mall Architectural form Asphalt Concrete BIPV BIPV Placement Baldwin model Balinese Traditional Spatial Planning Blockley model Bottom Ash