Table 1-1. LEED Credit Cost Impacts (Part 1 of 3)
IDENTIFIED COST IMPACTS FROM
PROJECTED COST
GSA LEED COST STUDY
IMPACTS
GSA OFFICE OR
NEW
OFFICE BUILDING
INSTITUTIONAL
COMMENTS
COURTHOUSE
MODERN'ZTN.
BUILDINGS
ID#
LEED Prerequisite or Credit
Low
High
Min Fac
Full Fac
New
Mod
SUSTAINABLE SITES (14 Possible Points)
SS
SS-P1
Erosion and Sedimentation Control
PRE.
PRE.
PRE.
PRE.
PRE.
PRE.
Credit may not be available to all GSA projects - depends on
Site Selection
SS-1
1
1
1
1
specific site.
Credit may not be available to all GSA projects - depends on
Development Density
SS-2
1
1
1
1
specific site.
Brownfield remediation costs are assumed to be outside of the
Brownfield Redevelopment
SS-3
1
1
1
LEED scope, therefore no premium.
Alternative Transportation-
Credit may not be available to all GSA projects - depends on
SS-4.1
1
1
1
1
1
1
Public Transportation Access
specific site.
Alternative Transportation-
Credit costs can be significantly lower if health club (w/showers) is
SS-4.2
1
1
1
1
1
Bicycle Storage & Changing Rooms
included in building program.
Alternative Transportation-
SS-4.3
1
1
1
Applicability of charging stations should be reviewed.
Alternative Fuel Vehicles
Alternative Transportation-
SS-4.4
1
1
1
1
Applicability of carpool spaces should be reviewed.
Parking Capacity
Reduced Site Disturbance-
Credit may not be available to all GSA projects - depends on
SS-5.1
1
1
Protect or Restore Open Space
specific site.
Reduced Site Disturbance-
Credit may not be available to all GSA projects - depends on
SS-5.2
1
1
1
Development Footprint
specific site.
Stormwater Management-
Credit costs can vary depending on approach - increased site
SS-6.1
1
1
1
1
Rate and Quantity
perviousness versus vegetated roofing system.
Stormwater Management-
SS-6.2
1
1
Credit applicability may be limited by maintenance requirements.
Treatment
Heat Island Effect -
Credit costs are based on GSA projects with little or no surface
SS-7.1
1
1
1
1
1
Non-roof
parking.
Heat Island Effect -
Credit costs can vary depending on approach - Energy Star roofing
SS-7.2
1
1
1
1
Roof
versus vegetated roofing system.
Credit may not be available to all GSA projects - may conflict with
Light Pollution Reduction
SS-8
1
1
1
security requirements.
WATER EFFICIENCY (5 Possible Points)
WE
Water-Efficient Landscaping -
Credit may not be available to all GSA projects - depends on
WE-1.1
1
1
1
1
specific site and landscaping requirements.
Reduce by 50%
Water-Efficient Landscaping -
Credit may not be available to all GSA projects - depends on
WE-1.2
1
1
1
No Potable Use or No Irrigation
specific site and landscaping requirements.
Innovative Wastewater Technologies
WE-2
Water Use Reduction-
WE-3.1
1
1
1
1
1
1
20% Reduction
Water Use Reduction -
WE-3.2
1
1
1
1
1
1
30% Reduction
KEY
Measures that are met based on GSA standards or mandates (no premium)
Measures with no cost premiums, or with potential cost decreases
Measures with low cost premiums (<50K for Models from GSA LEED Cost Study)
Measures with moderate cost premiums (between 50K - 150K for Models from GSA LEED Cost Study)
Measures with high cost premiums (>150K for Models from GSA LEED Cost Study)
Measures with variable cost premiums, depending on project conditions
Measures not applicable to the project
Measures unlikely to be pursued on typical GSA projects
Measures not pursued, although technically viable
GSA LEED APPLICATIONS GUIDE
6
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