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What is LEED™?
LEED™ (Leadership in Energy and Environmental Design) is a rating system for new and existing commercial, institutional, and high-rise residential buildings, designed by the US Green Building Council using an extensive peer review process. Four levels of green building certification are awarded based on the total credits earned in each of five categories: Sustainable Sites, Water Efficiency, Energy and Atmosphere, Materials and Resources, and Indoor Environmental Quality. The City's Sustainable Building Policy sets the minimum for new City construction at the LEED™ Silver level. For more information on the LEED™ system, visit the U.S. Green Building Council's web site at www.usgbc.org/.
Also, find more information about LEED™ and the City of Seattle's Sustainable Building Policy at www.seattle.gov/
sustainablebuilding/
Sustainable Sites
Water Efficiency
Energy and Atmosphere
Materials and Resources
Indoor Environmental Quality
Innovation Credits and Design/Build Process
Score Totals
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*R = Required
Sustainable Sites
(Points possible this section: 14)
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| Prerequisite: Erosion and Sedimentation Control Design a plan conforming to BMPs in EPA's Storm Water Management for Construction Activities OR local standards and codes, whichever is more stringent. |
R |
| 1: Site Selection Avoid development on inappropriate sites: See Rating System (p. 4) for list. |
1 |
| 2: Urban Redevelopment Select sites with minimum development density of 60,000ft2/acre
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1 |
| 3: Brownfield Redevelopment Rehabilitate damaged sites by selecting a site classified as a brownfield |
1 |
| 4: Alternative Transportation Use the following tactics to reduce automobile impacts: |
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| 4a: Locate within ½ mile of commuter rail, light rail or subway or ¼ mile of 2 or more bus lines
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1 |
| 4b: Provide for bicycles, changing and shower areas for 5% or more of occupants |
1 |
| 4c: Install alternative fuel re-fueling stations for 3% of parking capacity |
1 |
| 4d: Parking not to exceed min. zoning AND provide preferred parking for car/vanpools for 5% of occupants, OR, add no new parking for rehab projects AND preferred car/vanpool parking for 5% of occupants |
1 |
| 5: Reduced Site Disturbance Conserve natural areas and restore damaged areas by:
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| 5a: For greenfields, limit disturbance to w/in: 40ft of building, 5ft of road/walkways & utility trenches, 25ft of parking areas. Redevelopment: plant native/adapted vegetation on 50%+ of remaining open area |
1 |
| 5b: Reduce development footprint (building, access roads, parking) to exceed local zoning open space 25% |
1 |
| 6: Stormwater Management Implement a plan resulting in:
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| 6a: No net increase in stormwater runoff, OR, if existing imperviousness 50%+, reduce runoff 25% |
1 |
| 6b: Treatment systems to remove 80% of post development TSS and 40% of phosphorus |
1 |
| 7: Landscape and Exterior Design to Reduce Heat Islands resulting in the following: |
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| 7a: Provide shade (w/in 5 yr.) on 30%+ non-roof impervious surfaces, OR use materials w/reflectance at least 0.3 on non-roof impervious surfaces, OR place 50%+ of parking underground, OR use open-grid pavement system for 50%+ of parking area |
1 |
| 7b: Use high reflectance, low-e roofing for 75%+ of roof area, OR install "green" roof for 50%+ of roof area |
1 |
| 8: Light Pollution Reduction Do not exceed IESNA requirements in Recommended Practice Manual: Lighting for Exterior Environments AND design such that zero direct beam illumination escapes site |
1 |
Water Efficiency
(Points possible this section: 5)
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| 1: Water Efficient Landscaping Lower demands on potable water used for irrigation by: |
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| 1a: High efficiency irrigation OR, use rain/recycled site H2O for 50% reduction in potable H2O for irrigation |
1 |
| 1b: 100% use of recycled site (rain) water OR, no irrigation system |
1 |
| 2: Innovative Wastewater Technologies: reduce potable water use for sewage conveyance by 50%+ OR, treat 100% wastewater on site to tertiary standards |
1 |
| 3: Water Use Reduction. Reduce potable water use beyond baseline calculated for building (excluding irrigation) after meeting Energy Policy Act of 1992 fixture performance requirements by the following (note: select one point level for this credit): |
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| 3a: 20% reduction below baseline |
1 |
| 3b: Additional 10% reduction (for a total of 30% below baseline) |
1 |
Energy and Atmosphere
(Points possible this section: 17)
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| Prerequisite 1: Fundamental Building Systems Commissioning |
R |
| Prerequisite 2: Minimum Energy Performance |
R |
| Prerequisite 3: CFC Reduction in HVAC&R Equipment |
R |
| 1: Optimize Energy Performance: Achieve levels of energy performance above ASHRAE/IESNA Standard 90.1-1999 as follows (note: select only one point level for this credit): |
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| 1a: 20% in new buildings, 10% in existing buildings |
2 |
| 1b: 30% new, 20% existing |
2 |
| 1c: 40% new, 30% existing |
2 |
| 1d: 50% new, 40% existing |
2 |
| 1e: 60% new, 50% existing |
2 |
| 2: Renewable Energy Utilize on-site renewable energy sources (note: select one point level for this credit): |
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| 2a: 5% of total energy use, expressed as a fraction of annual energy cost |
1 |
| 2b: 10% of total energy use, expressed as a fraction of annual energy cost |
1 |
| 2c: 20% of total energy use, expressed as a fraction of annual energy cost |
1 |
| 3: Additional Commissioning: Implement the following: design review before construction documents phase, review construction documents near completion, review contractor submittals of commissioned equipment, develop system and energy management manual, have contract for near-warranty end or post occupancy review. First 3 items must be performed by other than design team. |
1 |
| 4: Elimination of HCFCs and Halons: Install HVAC&R and fire suppression systems without HCFCs/Halons |
1 |
| 5: Measurement and Verification: Provide ongoing measurement/verification of energy & water consumption using US Dept. of Energy's IPMVP, Option B (see Rating System for required systems and equipment). |
1 |
| 6: Green Power: Engage in two-year contract to purchase power meeting CRS Green-E requirements. |
1 |
Materials and Resources
(Points possible this section: 13)
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| Prerequisite: Storage & Collection of Recyclables: Provide an easily accessible area serving entire building for separation, collection and storage of (at minimum) paper, glass, plastics and metals |
R |
| 1: Building Reuse: Reuse large portions of existing structures during renovation and redevelopment (note: circle one point level for this credit). |
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| 1a: Maintain 75% of existing structure and shell |
1 |
| 1b: Maintain additional 25% (100% total) of structure and shell |
1 |
| 1c: Maintain 100% of existing structure and shell and 50% non-shell |
1 |
| 2: Construction Waste Management: Develop and implement construction/demolition waste management plan, quantifying material by weight (note: circle one point level for this credit) |
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| 2a: Recycle and/or salvage 50% of construction, demolition and land clearing waste |
1 |
| 2b: Recycle and/or salvage an additional 25% of waste (75% total recycle/salvage rate) |
1 |
| 3: Resource Reuse (note: circle one point level for this credit): |
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| 3a: Specify salvaged or refurbished materials for 5% of building materials (% in terms of dollar value) |
1 |
| 3b: Specify salvaged or refurbished materials for 10% of building materials (% in terms of dollar value) |
1 |
| 4: Recycled Content: Use recycled content materials (by weighted average). Note: circle one point level. |
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| 4a: Specify min. 25% building materials w/average 20% post-consumer, OR 40% post-industrial recycled material |
1 |
| 4b: Specify additional 25% (50% total) of recycled material as above |
1 |
| 5: Local/Regional Materials encourage use of local materials in the following ways: |
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| 5a: Specify minimum 20% of materials manufactured within 500 mile radius of project |
1 |
| 5b: Of these, specify minimum 50% of materials extracted, harvested or recovered within 500 miles |
1 |
| 6: Rapidly Renewable Materials: Specify rapidly renewable materials (replenished faster than traditional extraction demand) for 5% of total building materials (see Reference Guide for calculation methodology) |
1 |
| 7: Certified Wood: Use minimum of 50% of wood materials certified using Forest Stewardship Council guidelines
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1 |
Indoor Evironmental Quality
(Points possible this section: 15)
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| Prerequisite: Minimum IAQ Performance Meet minimum IAQ requirements set forth in ASHRAE 62-1999 |
R |
| Prerequisite: ETS Control Prohibit smoking in building, or design to smoking room specifications in LEED |
R |
| 1: CO2 Monitoring Install permanent CO2 monitoring system and set points to maintain indoor CO2 levels no higher than outdoor levels by more than 530ppm at any one time |
1 |
| 2: Increase Ventilation Effectiveness Mechanically ventilated buildings: design system with air change effectiveness greater than or equal to 0.9 (ASHRAE 129-1997). Naturally ventilated buildings: demonstrate distribution and laminar flow of 90%+ of room or zone for at least 95% of hours of occupancy |
1 |
| 3: Construction IAQ Management Plan Develop IAQ Plan for construction and pre-occupancy by: |
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| 3a: Meet or exceed SMACNA IAQ Guidelines for Occupied Buildings under Construction, 1995, AND protect on-site/installed absorptive materials from moisture damage AND change filtration media prior to occupancy |
1 |
| 3b: Conduct minimum two week building flushout at 100% outside air prior to occupancy, OR conduct baseline IAQ testing consistent with EPA protocol |
1 |
| 4: Low-Emitting Materials Meet or exceed VOC limits as follows: |
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| 4a: Adhesives - use SCAQMD Rule #1168. Sealants - use BAARB Reg. 8, Rule 51 (see Rating System) |
1 |
| 4b: Paints and Coatings - use VOC and chemical component limits listed in Green Seal Requirements |
1 |
| 4c: Carpet systems - use Carpet and Rug Institute Green Label Indoor Air Quality Test program limits |
1 |
| 4d: Composite wood or agrifiber products contain no added urea-formaldehyde resins |
1 |
| 5: Indoor Pollutant Source Control: Minimize cross-contamination of reg. occupied areas by chemical pollutants |
1 |
| 6: Controllability of Systems Provide high level of occupant control of thermal, ventilation and lighting |
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| 6a: Provide 1 operable window & 1 lighting control zone per 200ft2 for all occupied areas w/in 15ft of perimeter wall |
1 |
| 6b: Provide controls for each occupant for airflow, temperature and lighting for 50% of non-perimeter, regularly occupied areas |
1 |
| 7: Thermal Comfort Increase occupant comfort by the following strategies: |
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| 7a: Comply with ASHRAE 55-1992, Addenda 1995 for thermal comfort including humidity control |
1 |
| 7b: Install permanent temperature and humidity monitoring system to provide operator control (building automation system) |
1 |
| 8: Daylight and Views |
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| 8a: Minimum Daylight Factor of 2% (excluding all direct sunlight penetration) in 75% of all space occupied for critical visual tasks |
1 |
| 8b: Direct line of sight glazing for 90% of regularly occupied spaces (see Rating System for exempt areas) |
1 |
Innovation Credits and Design/Build Process
(Points possible this section: 5)
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| LEED Innovation Credits: achieve points for exceeding Rating System requirements or performance in categories not addressed by the System. Requires use of the LEED Credit Equivalence process. |
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| Innovation 1: |
1 |
| Innovation 2: |
1 |
| Innovation 3: |
1 |
| Innovation 4: |
1 |
| LEED Accredited Professional At least one principal participant of the project team that has successfully completed the LEED Accredited Professional exam. |
1 |
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Score Totals
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Possible Points |
| Sustainable Sites |
14 |
| Water Efficiency |
5 |
| Energy & Atmosphere |
17 |
| Materials and Resources |
13 |
| Indoor Evironmental Quality |
15 |
| Grand Total: |
69 |
| Certification Levels |
26-32:
LEED Certified |
33-38:
Silver Level |
39-51:
Gold Level |
52+:
Platinum Level |
Sustainable Resource Guide
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