Sustainable Design and Construction: To Plaque or not to Plaque

Transcription

1 General Services Administration Office of the Chief Architect / Capital Construction Programs Public Buildings Service Sustainable Design and Construction: March 20, 2008 Martin Weiland, P.E. 1

2 What is GSA s Sustainability objective? GSA ENVIRONMENTAL POLICY STATEMENT (January 2006) The General Services Administration (GSA) is a committed environmental steward. GSA is committed to providing first class workplaces that can be used safely by its customers. In order to live up to these commitments and responsibilities, GSA will: Continuously strive to be the premier provider of healthy built environments for Federal employees; Continuously strive to prevent waste and pollution and adopt practices that minimize the harmful effects of our operations on the natural environment; Maintain transparency by consulting with, listening to, and being responsive to our customers, employees, neighbors, public interest groups, and those who work with us; 2

3 What is GSA s Sustainability objective? GSA ENVIRONMENTAL POLICY STATEMENT The General Services Administration (GSA) is a committed environmental steward. GSA is committed to providing first class workplaces that can be used safely by its customers. In order to live up to these commitments and responsibilities, GSA will: Continuously strive to be the premier provider of healthy built environments for Federal employees; Continuously strive to prevent waste and pollution and adopt practices that minimize the harmful effects of our operations on the natural environment; Maintain transparency by consulting with, listening to, and being responsive to our customers, employees, neighbors, public interest groups, and those who work with us; 3

4 What is GSA s Sustainability objective? Work with others-our partners, contractors, and regulators-to help improve environmental, health, and safety management of the real estate management industry; Promote awareness of applicable environmental, health, and safety requirements on the part of all persons carrying out GSA operations by providing training to GSA employees, and requiring contractors to demonstrate that their employees have been sufficiently trained; Comply with all applicable environmental, health, and safety requirements; Implement and continually improve an environmental management framework based on an external standard; and, Periodically recognize those in the organizations who make significant contributions to improved environmental, health, and safety performance. 4

5 What is GSA s Sustainability objective? Work with others-our partners, contractors, and regulators-to help improve environmental, health, and safety management of the real estate management industry; Promote awareness of applicable environmental, health, and safety requirements on the part of all persons carrying out GSA operations by providing training to GSA employees, and requiring contractors to demonstrate that their employees have been sufficiently trained; Comply with all applicable environmental, health, and safety requirements; Implement and continually improve an environmental management framework based on an external standard; and, Periodically recognize those in the organizations who make significant contributions to improved environmental, health, and safety performance. 5

6 GSA has selected LEED LEED requirement in place since 2000, Certified targeting Silver. A July 2006 study by PNNL named LEED as the most appropriate sustainability system for GSA. All new GSA construction projects and substantial renovations must be LEED Certified. Projects are encouraged to achieve LEED Silver level. Requirements of the GSA PBS P-100 influence the minimum requirements in many categories. 6

7 How Much Does a Plaque Cost? Two Studies GSA Cost Study (2004) Modeling without Data Davis Langdon Study (2007) Data without Modeling 7

8 How Much Does a Plaque Cost? GSA Cost Study Giant 575 page study completed October 2004 by Steven Winter & Assoc. 2 Building types (Courthouse and Office) 3 Levels (Certified, Silver, Gold) High and Low Cost Scenarios 8

9 Courthouse New Construction 1A Low Cost Certified Silver Gold 2A High Cost 3A Low Cost 4A High Cost 5A Low Cost 6A High Cost $/GSF ($0.76) $2.18 ($0.07) $9.57 $2.97 $17.79 % Change -0.4% 1.0% -0.03% 4.4% 1.4% 8.1% Office Building Modernization Certified Silver Gold 1B Min. Facade 2B Full Façade 3B Min. Facade 4B Full Façade 5B Min. Facade 6B Full Façade $/GSF $1.78 $2.73 $3.96 $5.58 $10.60 $10.25 % Change 1.4% 2.1% 3.1% 4.2% 8.3% 7.8% October 2003 Construction Cost Differential for LEED Compliance Courthouse: 262,000 $220/GSF Base Construction Costs Office Building Modernization: 306,600 $130/GSF Base Construction Costs 9

10 Is s there a Construction Cost Difference for a Plaque? What are our Above-Code Default choices? Total CX P-100 and Mandated Energy Efficiency Dedicated Ventilation Recycled Content per EPA Comprehensive Procurement Guidelines (CPG) Green power What are our Pre-design Points? Location generally in CBD Which Choices would be different for a Plaque? What may cause a Difference of Opinion on Success of a design feature? 10

11 What about Soft Costs? Facilitate LEED Charrette Point of Contact Technology Advisor Develop LEED Action Items Materials/Systems Research LEED Calculations for IEQ Credits Energy Calculations LEED Credit Interpretations Specification Edits Coordinate LEED Submittals With CM Review Contractor Submittals Assemble LEED Documentation 11

12 Additional Design/Documentation Costs? New Courthouse Certified Silver Gold 1A 2A 3A 4A 5A 6A Design Fee Premium $83.8 $97.7 $83.8 $121.0 $134.0 $182.5 LEED Documentation & Certification $22.4 $22.4 $23.6 $23.6 $26.0 $26.0 Soft Cost Totals $106.1 $120.1 $107.5 $144.6 $160.0 $208.5 Cost Impact ($/GSF) $0.41 $0.46 $0.41 $0.55 $0.61 $0.80 Office Modernization Certified Silver Gold 1A 2A 3A 4A 5A 6A Design Fee Premium $97.7 $100.0 $107.4 $123.2 $184.3 $181.0 LEED Documentation & Certification $26.7 $26.7 $28.0 $28.0 $30.3 $30.3 Soft Cost Totals $124.4 $126.7 $135.4 $151.2 $214.6 $211.3 Cost Impact ($/GSF) $0.41 $0.41 $0.44 $0.49 $0.70 $

13 How Much Does a Plaque Cost? Davis Langdon Cost Study (2004, 2007) Based on Costs of real buildings 5 Building types (Academic, Laboratory, Library, Community Centers, Ambulatory Care) not including Offices 3 Levels (Certified, Silver, Gold) Sample of 83 LEED, 138 non-leed 13

14 Davis Langdon Cost Study Findings No Significant Difference in Average Cost,, Meaning 8.6% Premium for Platinum 4% Premium for Gold 1.9% Premium for Silver Normalized for location & climate, program, but Not For Precise Project Scope Even with Dramatically Rising Costs, Projects still achieve LEED LEED is still seen as an Extra Probably a Comparable Conclusion to the GSA Study 14

15 What is the Payoff? A La Carte systems - results Hard to Quantify Energy & Water Indoor Environmental Quality/Health Outdoor Environmental Quality/Ecology Marketing advantage 15

16 What is the Payoff? Energy Cost Savings NBI Study (February 2008) GSA Study (PNNL Draft December 2007) 16

17 NBI Study LEED Buildings use Less Energy on average The More Energy Points, the Better they Averaged We know how to save energy in general The Data Scatter is Enormous Our ability to predict energy performance is poor 17

18 NBI Study 18

19 GSA Study GSA s high performance green buildings use 26% less energy than average US commercial buildings (65 vs. 88 kbtu/sf/yr) and slightly below GSA Average (65 vs. 66 kbtu/sf/yr) Buildings with the highest occupant satisfaction also demonstrate lowest: energy consumption energy costs carbon footprint water consumption 19

20 Does GSA Need a Third Party to Supply: Conscience? Credibility? 20

21 Sustainable Design and Construction: Q&A Federal Buildings & Modernizations Office of the Chief Architect & Capital Construction Programs Public Buildings Service 21