F+G Cost of LEED
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F+G Cost of LEED

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A presentation from 2005 that analyzes the cost 'premium' of sustainable construction

A presentation from 2005 that analyzes the cost 'premium' of sustainable construction

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F+G Cost of LEED F+G Cost of LEED Presentation Transcript

  • The Cost Implications of LEED A Presentation By Hanscomb Faithful & Gould September 29 th – 2005 Ms. Carin Rautenbach – Vice President, LEED AP Ms. Minna Gerard – Senior Estimator, LEED AP John Merkler AIA
  • Our presentation today
    • Understanding Cost Constraints
      • Where the data comes from
      • Life Cycle vs First Cost
    • LEED Point Analysis
    • Sharing our Lessons Learned
    • Questions and Answers
    • Sharing Best Practices from Audience Members
  • What is the Cost of Green Building?
    • 1. Initial Cost, i.e. Construction Cost
    • 2. Life Cycle Cost, which covers not only construction cost but also operation and maintenance cost during the building’s usable life.
  • LEED Project Locations
  • Where does the data come from?
    • Hanscomb Faithful & Gould’s
    • nationwide database
    • GSA’s database of recent work
    • State of California Study – 2003
    • Supplemental data
  • LEED Rating System
    • Four (4) levels of Certification
      • LEED Certified 26 - 32 points
      • Silver Level 33 - 38 points
      • Gold Level 39 - 51 points
      • Platinum Level 52+ points (69 possible)
  • LEED Rating System
    • Attainable Points Distribution
    5 Water Efficiency 5 Innovation and Design Process 15 2 Indoor Environmental Quality 13 1 Material and Resources 17 3 Energy and Atmosphere 14 1 Sustainable sites Maximum Points Prerequisites Major Categories
  • Life Cycle Cost Saving for LEED Projects
      • Energy & Lighting Efficiency
      • Water Efficiency
      • Materials Efficiency
      • Employee Productivity
      • Employee Health
      • Construction & Debris Recycling
  • Sensitivity to Life Cycle Cost Energy (2%) Educational Staffing (31%) Support Staffing (11%) Furnishings / Fitout (4%) Fees (1%) Construction Contingency 1% Other Project Costs School Allotment (1%) Textbooks (1%) Benefits Overhead (14%) Other Support Costs (2%) Major Capital Replacements Maintenance (3%) Transportation (5%) C onstruction (18%) (1%) (1%) (5 %)
  • The Study – The Costs and Financial Benefits of Green Building
    • Commissioned by California’s Sustainable Building Task Force
    • Led by Greg Kats, Capital E with Contributions from California Department of General Services and Lawrence Berkeley National Laboratory
    • Findings
      • Green Buildings have an average 0 to 2% increase in first cost over their conventional counterparts, but over 20 years, they will recoup 20% of construction costs —more than ten (10) times the original investment in green building features .
  • The Study – The Costs and Financial Benefits of Green Building ($4.00) Less Green Cost Premium $67.31 Total 20-year NPV (Gold and Platinum) $48.87 Total 20-year NPV (Certified and Silver) $55.33 Productivity and Health Value (Gold and Platinum) $36.89 Productivity and Health Value (Certified and Silver) $8.47 Commissioning O&M value $0.03 Waste value (construction only) 1-year $0.51 Water value $1.18 Emission value $5.79 Energy value 20-year NPV CATEGORIES of VALUES Financial Benefits of Green Buildings per ft 2
  • The Study – The Costs and Financial Benefits of Green Building
      • Contributors to increased value
      • Percentage Breakdown of Green Building - Financial Benefits
      • LEED Certified & Silver Buildings
  • Capital Cost for Building Green
    • First cost vary significantly
      • Nature, location, size of projects
      • Timing to introduce LEED goal
      • Level of LEED certification desired
      • Process used to select LEED credits
      • Local and regional design standards, including codes and initiatives
      • Experience of design team
      • Experience of contractors
      • Rebate and incentive programs
  • Is there any Premium Cost for Building Green?
    • Historical Information
    • Our Findings
    • LEED Certified Building fall into the same
      • range of cost as Building not LEED certified
    • It is possible to achieve Design Team and Owner’s goals by making value decisions without adding to the budget.
    • Each Building is Unique
    • No one-size-fits-all Answer
  • Trends
    • Cost ($) for building green decreases as
        • Consultants and contractors gain more experience
        • Newer, cheaper and better availability of green materials
        • More local policy incentives
  • Points Analysis
    • Sustainable Sites (SS) *( yellow categories) / most achieved points
    Urban Development Density SS c2 Relatively inexpensive Alternative Transport 5% Bicycle Storage & Change/Shower Room SS c4.2 * Alternative Transport Public Transportation Access SS c4.1 * Cost can be significant Brownfield Development SS c3 High credit attainment % Site Selection SS c1 * No or minimum additional cost, typical to project requirements Erosion & Sedimentation Control SS p1 Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Sustainable Sites (SS) *( yellow categories) / most achieved points
    Minimum cost Alternative Transport Parking Capacity Reduction, Vanpools SS c4.4 * Cost depends on types of fuel etc., may become obsolete. Alternative Transport Alternative Fuel Refueling SS c4.3 Minimum cost or not achievable at all Reduced Site Disturbance Development footprint SS c5.2 * Minimum cost; Expensive if underground parking is used Reduced Disturbance Protect / Restore Open Space SS c5.1 Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Sustainable Sites (SS) *( yellow categories) / most achieved points
    Relatively low cost for adding shade trees etc. Landscaping actions to reduce heat island effect Non-roof SS c7.1 * Swales – minimum cost impact; Retention / Detention Ponds - more expensive; Stormwater Collection Tank - costly Stormwater Management Treatment - remove TSS and TP contaminants SS c6.2
    • Cost depends on method
    • smaller footprint, pervious paving, relatively inexpensive or even save money
    • green roof, more expensive
    • ( up to $100 / square foot)
    Stormwater Management no net increase in Rate & Quantity of Stormwater run off SS c6.1 Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Sustainable Sites (SS) *( yellow categories) / most achieved points
    Energy Star compliant roofing – relatively inexpensive Green roof – can be costly Landscaping actions to reduce heat island effect, Roof SS c7.2 * Some premium cost – external lighting, added cost for sensor or light shades Light Pollution Reduction by eliminating light trespass from site SS c8 * Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Water Efficiency (WE) *( yellow categories) / most achieved points
    Low flow or waterless sanitary fixtures – premium cost Innovative Wastewater Technology WE c2 Waterless sanitary fixtures & reclaimed water system, either on site or through local water district 30% Water Use Reduction WE c3.2 * Sensors to plumbing fixture – premium cost 20% Water Use Reduction WE c3.1 * Use reclaimed water supplied by local water district – low cost Water Efficient Landscaping, no irrigation WE c1.2 * High efficiency irrigation and indigenous plants, minimum cost; rain water collection system can be more expensive Water Efficient Landscaping less potable use WE c1.1 * Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Energy & Atmosphere (EA) *( yellow categories) / most achieved points
    No additional cost, standard practice CFC Reduction in HVAC&R EA p3 Cost varies – energy efficient lighting fixtures & HVAC equipment; efficient control system; low - E glazing; shading devices; soft cost for energy modeling Optimize Energy Performance 20 - 60% new 10 - 50% Existing Building EA c1.1-5 * Minimum Energy Performance per ASHRAE/IESNA 90.1-1999 EA p2 0.1-1.0% of total construction cost System Commissioning EA p1 Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Energy & Atmosphere (EA) *( yellow categories) / most achieved points
    No additional cost, standard practice for new construction Ozone Depletion, no HCFC’s or Halons (including at Central plant) EA c4 Reasonable cost based on annual energy usage; operation cost rather than first cost Green Power, 2-year utility contract to buy energy from renewable sources EA c6 Can be costly System Measurement & Verification for accountability / optimization EA c5 Reasonable additional cost compared to system commissioning pre-requisite Additional Commissioning including during design process EA c3 * PV panel: 1KW - $8,000 - 8,500 Renewable Energy 5 - 20% of total building use EA c2.1-3 Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Materials & Resources (MR) *( yellow categories) / most achieved points
    Reuse, maintain 100% shell, 50% non-shell MR c1.3 May not achieve due to the high percentage, cost impact normally minimum Resource Re-use, Specify 5 -10% salvaged / refurbished, by cost. MR c3.1-2 Cost varies depending on project location and waste recycling program Construction Waste Management, Divert 50-75%, measured by weight MR c2.1-2 * For renovation projects only, might affect achieving energy use reduction Maintain 75 - 100% of Existing Structure MR c1.1-2 Reasonable cost Recyclable Collection / Storage MR p1 Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Materials & Resources (MR) *( yellow categories) / most achieved points
    High level of attainment on certified projects. Possible material cost premium due to limited resources. 50% of above Regional Materials were locally sourced / harvested MR c5.2 * High level of attainment on certified projects. Possible material cost premium due to limited resources. 20% total materials are Manufactured Regionally measured by cost MR c5.1 * High level of attainment on certified projects. Possible initial material cost premium. 25-50% total materials have Recycled Content post consumer/ post industrial - by cost MR c4.1-2 * Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Materials & Resources (MR) *( yellow categories) / most achieved points
    Cost Implication ($) Points Description Ref. More expensive than non-certified wood. 5 - 18% higher. 50% of wood-based materials to be from FSC-Certified wood MR c7 Few achieved this on certified project. Difficult to get percentage requirements Rapidly Renewable Materials - 5% of total materials measured by cost MR c6
  • Points Analysis
    • Indoor Environmental Quality (EQ)
      • *(yellow categories) / most achieved points
    Ventilation Effectiveness per ASHRAE 129-1997 EQ c2 Premium cost for sensors Carbon Dioxide Monitoring EQ c1 * Additional cost for temporary storage, replace filter, dehumidification equipment IAQ Plan During Construction EQ c3.1 * No (prohibition) or additional cost (designated smoking room), standard practice in CA Environmental Tobacco Smoke Control EQ p2 No additional cost Minimum IAQ Performance per ASHRAE 62-1999 EQ p1 Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Indoor Environmental Quality (EQ)
      • *(yellow categories) / most achieved points
    Minimum cost Low-E Composite Wood EQ c4.4 No or minimum cost High level of attainment Low-Emitting Materials, Carpets EQ c4.3 * No or minimum cost High level of attainment Low-Emitting Materials Paints EQ c4.2 * Minimum cost Indoor Chemical / Pollutant Control EQ c5 * No or minimum cost High level of attainment Low-Emitting Adhesive Sealant EQ c4.1 * 2 - week flush out needs to be integrated into the construction schedule, additional cost IAQ Plan Before Occupancy EQ c3.2 * Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Indoor Environmental Quality (EQ)
      • *(yellow categories) / most achieved points
    Some added cost Thermal Comfort, Permanent Monitoring EQ c7.2 * Design issue Daylight, 75% EQ c8.1 Design issue Thermal Comfort Compliance EQ c7.1 * Difficult to attain credit / raised flooring system Controllability, Non-Perimeter EQ c6.2 Design issue Daylight and Views, 90% EQ c8.2 * Operable windows / traditional air-conditioning (AC) system Controllability, Perimeter EQ c6.1 Cost Implication ($) Points Description Ref.
  • Points Analysis
    • Innovation and Design Process
      • *(yellow categories) / most achieved points
    Innovation in Design ID c.4 Innovation in Design ID c.3 * Innovation in Design ID c.2 * None LEED Accredited Professional ID c.5 * Varies Innovation in Design ID c.1 * Cost Implication ($) Points Description Ref.
  • Other Cost Factors to Consider
    • Documentation cost ($) during Design and Construction
    • Extra Design Fees
    • Rebate Programs
      • Solar incentive program by LADWP
    • Local Green Building Incentives
      • such as expedited permitting, low inspection
      • fees, tax credit, and Savings by Design Program
  • Experienced Design Team Fees (Source: GSA)
  • Savings by Design
    • Program is
      • Founded by California Utility Customers
      • Administered by Pacific Gas and Electric (P G&E), San Diego Gas and Electric, Southern California Edison Company and Southern California Gas Company.
    • Whole Building approach
    • Systems approach
      • Daylight saving
      • Interior lighting system
      • Heating, ventilation, and air conditioning (HVAC) system
      • Service Hot Water
      • Other Systems
  • Savings by Design
    • Incentives
      • Maximum incentive for the Owner is
      • $150,000 under the whole building approach
      • $75,000 under the systems approach
      • Maximum incentive for the Design Team is $50,000
  • Cost Implications of LEED
    • Understanding Cost Constraints
    • LEED Point Analysis
    • Sharing our Lessons Learned
    • Questions and Answers
    • Sharing Best Practices from Audience Members
    • Thank you for attending