Sustainable Housing Scoping Study
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Funded by the European Union SUSTAINABLE HOUSING ADDRESSING SCP IN THE HOUSING SECTOR SCOPING STUDY SUSTAINABLE HOUSING ADDRESSING SCP IN THE HOUSING SECTOR SCOPING STUDY © 2019 EU Acknowledgement This study was prepared on behalf of the EU SWITCH- Asia Sustainable Consumption and Production Facility (SCPF) by Madeline Schneider, Carolina Borges, Jessica Weir, Anton Barckhausen, Jonas Restle, Mikael P. Henzler from adelphi consult GmbH and Apurva Singh, Isha Sen, Rashi, Suhani Gupta, Shruti Isaar, Gitika Goswami, Zeenat Niazi from Development Alternatives. It was supervised by Puja Sawhney and Arab Hoballah. Its contents are the sole responsibility of the authors and do not necessarily reflect the views of the European Union. SCP SCOPING STUDY • SUSTAINABLE HOUSING Table of contents 1 Context ................................................................................................................................... 1 1.1 Objective of the study ........................................................................................................ 1 1.2 Definition of sustainable housing ......................................................................................... 3 1.3 Relevance of sustainable housing ....................................................................................... 4 1.3.1 Sustainable housing in the context of the global agenda setting processes .......................... 4 1.3.2 Potential of the housing sector to achieve greenhouse gas (GHG) and energy savings ......... 5 1.3.3 Sustainable housing in the context of SCP............................................................................ 5 2 Current state and trends of sustainable housing in the context of SCP in Asia ............................ 7 2.1 Relevance of sustainable housing in Asia ............................................................................ 7 2.2 Methodological approach of assessment ............................................................................ 9 2.3 Analysis of sustainable housing along the lifecycle of buildings in selected countries ........... 10 2.3.1 Material production ............................................................................................................. 11 2.3.2 Design/Manufacturing ......................................................................................................... 14 2.3.3 Construction ....................................................................................................................... 20 2.3.4 Usage ................................................................................................................................. 28 2.3.5 Recycling ............................................................................................................................ 33 2.4 Analysis of social and environmental aspects of sustainable housing in selected countries .. 37 2.4.1 SDGs and NDCs addressing sustainable housing of selected countries ............................. 38 2.4.2 Affordable Housing ............................................................................................................. 42 2.4.3 District Development ........................................................................................................... 44 2.5 Additional insights on SCP through country briefs ............................................................. 46 2.6 International Best Practices .............................................................................................. 60 3 Assessment and comparison of SCP progress in sustainable housing in selected Asian countries ............................................................................................................................... 70 3.1 Methodology to evaluate SCP progress ............................................................................ 70 3.2 Findings on SCP progress in selected countries ................................................................ 72 3.3 Limitations ....................................................................................................................... 79 4 Conclusion ............................................................................................................................ 80 5 Recommendations ................................................................................................................. 84 6 Bibliography .......................................................................................................................... 86 7 Annex ................................................................................................................................. 109 SCP SCOPING STUDY • SUSTAINABLE HOUSING 7.1 SCP Rating System Indicator Descriptions ...................................................................... 110 7.2 Detailed findings of SCP ratings with reasoning ............................................................... 119 7.3 SCP Sustainable Housing in China ................................................................................. 182 7.4 SCP Sustainable Housing in India ................................................................................... 201 7.5 SCP Sustainable Housing in Kazakhstan ......................................................................... 222 7.6 SCP Sustainable Housing in Kyrgyzstan .......................................................................... 240 7.7 SCP Sustainable Housing in Malaysia ............................................................................. 258 7.8 SCP Sustainable Housing in Mongolia ............................................................................ 276 7.9 SCP Sustainable Housing in Nepal ................................................................................. 294 7.10 SCP Sustainable Housing in Pakistan ........................................................................... 311 7.11 SCP Sustainable Housing in Sri Lanka .......................................................................... 332 7.12 SCP Sustainable Housing in Thailand ............................................................................ 348 SCP SCOPING STUDY • SUSTAINABLE HOUSING List of figures Figure 1: Structure of the scoping study – Schematic overview ................................................................ 2 Figure 2: Overview of NDC submissions related to sustainable housing ................................................... 4 Figure 3: Global energy-related CO2 emissions by sector, 2015 ............................................................... 5 Figure 4: Housing and its impacts on the environment ............................................................................. 6 Figure 5: Distribution of gross domestic product at purchasing power parity, Asia and Pacific region in the world economy .......................................................................................................... 7 Figure 6: Urban population at mid-year, 1950-2050, thousands .............................................................. 8 Figure 7: Domestic material consumption of Asia and the Pacific compared to the global consumption, 1970-2015, million tonnes ............................................................................. 8 Figure 8: Proportion of the population living in slums, %........................................................................... 9 Figure 9: Overview of the methodological approach for the assessment ................................................ 10 Figure 10: Building life cycle stages as considered in the assessment .................................................... 10 Figure 11: Energy cost savings distribution along EPC ........................................................................... 20 Figure 12: Overarching topics relevant for sustainable housing .............................................................. 37 Figure 13: Indicators to evaluate SCP progress in sustainable housing .................................................. 71 Figure 14: Total ranking of focal countries by SCP category ................................................................... 72 Figure 15: Summary of SCP ranking ...................................................................................................... 73 Figure 16: Comparison of the material production category in focal countries with the highest (Pakistan), lowest (China) and average ranking by indicator ....................................... 75 Figure 17: Comparison of two lowest (Kyrgyzstan & Mongolia) and second lowest (China & Nepal) ranked countries by category as % of total achievable points ............................. 76 Figure 18: Comparison of average rating of all focal countries by category as % of total achievable points ................................................................................................................. 77 Figure 19: Comparison of design & manufacturing category with highest (Malaysia), lowest (Mongolia) and average (China) ranking by indicator ......................................................... 78 Figure 20: Overview of key topics of the scoping part of the study ......................................................... 81 Figure 21: Overview of country ranking .................................................................................................. 83 SCP SCOPING STUDY • SUSTAINABLE HOUSING List of tables Table 1: Comparison of energy building codes in selected countries