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Comparing the Benefits of International Building Sustainability Assessment Methods

Comparing the Benefits of International Building Sustainability Assessment Methods. DGNB since 2007. BREEAM since 1990. Minergie Eco P since 1998. CASBEE since 2001. HQE since 1996. LEED since 1998. HK Beam since 2003. Green Star since 2003. Table of Contents. Background

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Comparing the Benefits of International Building Sustainability Assessment Methods

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  1. Comparing the Benefits of International BuildingSustainability Assessment Methods DGNB since 2007 BREEAM since 1990 Minergie Eco P since 1998 CASBEE since 2001 HQE since 1996 LEED since 1998 HK Beam since 2003 Green Star since 2003

  2. Table of Contents • Background • Defining the Problem • Objective • Existing Precedents • Methodology

  3. Concept of Sustainability Economy Investment Cost Operating Cost Background | Defining the Problem | Objective | Existing Precedents | Methodology Site Function Resource Comfort Energy Social Ecology Health Impact Transport Design

  4. Sustainability Standards DGNB since 2007 BREEAM since 1990 Minergie P Eco since 1998 LEED since 1998 CASBEE since 2001 HQE since 1996 HK Beam since 2003 Background | Defining the Problem | Objective | Existing Precedents | Methodology Green Star since 2003

  5. Defining the Problem Lack of transparency for developers, owners and tenants regarding expenses and benefits • What certificate can provide which benefits? • Which opportunities and which risks are associated with obtaining a certificate? • Is it just a new name for the same old product? ► Research into the economy of construction and occupancy of certified properties. Background | Defining the Problem | Objective | Existing Precedents | Methodology

  6. Objective Deciding factors for developers, owners and tenants Which certificate requires… • …higher initial expenses? • …more benefits? Background | Defining the Problem | Objective | Existing Precedents | Methodology Benefits Developer/Building Owner • Improve sale/rental price • Subsidies • “Green” Image Occupant/Tenant • Improve comfort and health • Reduce waste of resource • Reduce operating cost Expenses Developer/Building Owner • Audit cost • Investment cost Occupant/Tenant • Sales/rental price Benefit of Certified Properties ≥ Conventional Properties ?

  7. Existing Precedents • Overview of several tools on the German market analyzing their framework, structure and criteria > DGNB most comprehensive • First opinion surveys among developers, owners and tenants > Growing interest • Comparing costs and benefits of certified and conventional buildings (for example US: LEED) > It’s worth investing • Need of Further Research • Find out the needs of developers, owners and tenants in detail • Compare these needs to the Benefit of International Standards as well as with existing German standards and laws Background | Defining the Problem | Objective | Existing Precedents | Methodology

  8. Methodology • Module 1 • Surveys and interviews with: • Developers • Building owners • Tenants • Identify the interests of developers, building owners and tenants • Define economic criteria for Case Study Research Background | Defining the Problem | Objective | Existing Precedents | Methodology

  9. Methodology • Module 2 • Empirical Research of Case Studies of certified versus conventional • properties • Structural measures • Construction Strategy • Occupancy Strategy • Local Market Background | Defining the Problem | Objective | Existing Precedents | Methodology Office Buildings Built after 2000 Certified by LEED, BREEAM and DGNB Economic criteria

  10. Methodology • Module 3 • Analysis of Case Studies • Description • Structural measures • Construction Strategy • Occupancy Strategy • Local Market Background | Defining the Problem | Objective | Existing Precedents | Methodology Input/Output Factor

  11. Methodology • Module 4 • Comparison of Case Studies • Identifying factors for success and/or failure • Drawing conclusions regarding the value of each certificate Background | Defining the Problem | Objective | Existing Precedents | Methodology LEED Convent. DGNB BREAAM Input/Output Factor Input/Output Factor Input/Output Factor Input/Output Factor

  12. Thank you for your time and attention! DGNB BREEAM Minergie Eco P HQE CASBEE LEED HK Beam Green Star

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