OECD/IEA JOINT WORKSHOP ON SUSTAINABLE BUILDINGS: TOWARDS SUSTAINABLE USE OF BUILDING STOCK TABLE OF CONTENTS Introduction................................................................................................................................................. 9 Objectives.................................................................................................................................................... 9 Summary of discussions............................................................................................................................ 10 Introductory Session.............................................................................................................................. 10 Session 1: Trends and Issues: Where are we going? ............................................................................. 10 Session 2: What is SUBS?..................................................................................................................... 10 Session 3: What should be done to promote SUBS?............................................................................. 11 Session 4: Flexible Use of Building Stock ............................................................................................ 12 Session 5: Vitalization of the Market for Existing Buildings................................................................ 12 Session 6: Upgrading the energy efficiency of existing buildings ........................................................ 13 Session 7: Information tools contributing to the promotion of SUBS................................................... 14 Session 8: The Role of the Government, the Private Sector and NPOs in Promoting SUBS................ 15 Closing Session...................................................................................................................................... 17 Findings of the workshop.......................................................................................................................... 17 (Findings related to general issues) ....................................................................................................... 17 (Findings related to regulatory tools) .................................................................................................... 18 (Findings related to economic tools) ..................................................................................................... 18 (Findings related to information tools).................................................................................................. 18 ANNEX 1 FINAL AGENDA/ISSUE PAPER ............................................................................................ 20 AGENDA / ISSUE PAPER ...................................................................................................................... 20 Objectives.................................................................................................................................................. 20 ANNEX 2 WORKSHOP PAPERS ............................................................................................................. 30 TOWARDS SUSTAINABLE URBAN RENAISSANCE (HIROTO IZUMI)............................................ 30 1. Introduction........................................................................................................................................... 30 2. Environment Problems in Japan............................................................................................................ 30 Climate change and energy use ............................................................................................................. 30 Material use and waste use .................................................................................................................... 31 3. Economic Problems............................................................................................................................... 34 4. Urban Renaissance Policy in Japan....................................................................................................... 35 5. Examples of Urban Renaissance Project............................................................................................... 35 Regional level........................................................................................................................................ 35 City level................................................................................................................................................ 36 District level .......................................................................................................................................... 36 6. Urban Renaissance and Sustainable Use of Building Stock ................................................................. 37 7. Conclusions........................................................................................................................................... 38 EXISTING BUILDINGS, A HIDDEN RESOURCE, READY FOR MINING (RONALD ROVERS) ..... 40 1. Overview & Classification.................................................................................................................... 40 Classification of existing stock.............................................................................................................. 41 2. Some Figures......................................................................................................................................... 41 2 3. Potential................................................................................................................................................. 42 EU & energy potential........................................................................................................................... 43 Labour.................................................................................................................................................... 43 Materials efficiency ............................................................................................................................... 43 4. Drivers and Barriers .............................................................................................................................. 44 A1 Demolition permit policy................................................................................................................. 44 A2 Tax-policies ..................................................................................................................................... 44 A3 Land use and pricing........................................................................................................................ 44 A4 Modernisation drive......................................................................................................................... 44 A5 location ............................................................................................................................................ 45 B1 Ownership........................................................................................................................................ 45 B2 Rest value......................................................................................................................................... 45 B3 Economic investments horizon ........................................................................................................ 45 B4 Change of use................................................................................................................................... 45 C1 costs.................................................................................................................................................. 45 C2 labour ............................................................................................................................................... 45 C3 roots.................................................................................................................................................. 45 5. Theory Approach................................................................................................................................... 46 6. Change and Solutions............................................................................................................................ 47 Mind setting........................................................................................................................................... 47 7. Examples............................................................................................................................................... 48 8. Conclusions........................................................................................................................................... 49 PAPER OECD MEETING SUSTAINABLE USE OF THE BUILDING STOCK (RONALD ROVERS) 53 EU & energy potential........................................................................................................................... 56 Labour.................................................................................................................................................... 56 Materials efficiency ............................................................................................................................... 56 Mindsetting ..............................................................................................................................................