Credit achievement rate
XX%
Upgrade to LEEDuser Premium to see how many projects achieved this credit. Try it free »
LEEDuser’s viewpoint
Frank advice from LEED experts
LEED is changing all the time, and every project is unique. Even seasoned professionals can miss a critical detail and lose a credit or even a prerequisite at the last minute. Our expert advice guides our LEEDuser Premium members and saves you valuable time.
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Option 1
Select a LEED certified building (5 points).OR
Option 2
Locate the tenant space in a building that has in place 1 or more of the following characteristics at time of submittal (1 – 5 points). Each of the following options may also be met by satisfying the requirements of the corresponding LEED 2009 for New Construction credit.Path 1. Brownfield Redevelopment (1 point)
A building developed on a site documented as contaminated by an ASTM E1903-97 Phase II Environmental Site Assessment or a local voluntary cleanup program. Projects outside the U.S. may use a local equivalent to ASTM E1903-97 Phase II Environmental Site Assessment. OR A building on a site classified as a brownfield by a local, state, tribal or national government agency, whichever is most stringent. Effective remediation of site contamination must have been completed.Path 2. Stormwater design - quantity control (1 point)
A building that prior to its development had less than or equal to 50% imperviousness and has implemented a stormwater management plan that is equal to or is less than the predevelopment 1-1/2 year 24-hour rate and quantity discharge. OR A building that prior to its development had more than 50% imperviousness and has implemented a stormwater management plan that reduced predevelopment 1-1/2 year 24-hour rate and quantity discharge by 25% of the annual on-site stormwater load. This mitigation can be achieved through a variety of measures such as perviousness of site, stormwater retention ponds, and harvesting of rainwater for reuse. Stormwater values are based on actual local rainfall unless the actual exceeds the 10-year annual average local rainfall, in which case the 10-year annual average should be used.Path 3. Stormwater design - quality control (1 point)
A building that has in place site stormwater treatment systems designed to remove at least 80% of the average annual site area’s total suspended solids (TSS) and 40% of the average annual site area’s total phosphorus (TP). These values are based on the average annual loadings from all storms less than or equal to the 2-year, 24-hour storm. The building must implement and maintain best management practices (BMPs) outlined in Chapter 4, Part 2, Urban Runoff, of the EPA Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters, January 1993 (EPA 840-B-92-002) or the local government’s BMP document, whichever is more stringent.Path 4. Heat island effect - nonroof (1 point)
A building that provides shade (or will provide shade within 5 years of landscape installation), and/or uses light-colored or high-albedo materials with a solar reflectance index (SRI)1 of at least 29, and/or has open-grid pavement areas that individually or in total equal at least 30% of the site’s nonroof impervious surfaces, such as parking areas, walkways, plazas, and fire lanes. OR A building that has placed a minimum of 50% of parking spaces underground or covered by structured parking. OR A building that has an open-grid pavement system (less than 50% impervious) for 50% of the parking lot area.Path 5. Heat island effect - roof (1 point)
A building whose roofing has a solar reflectance index (SRI) of the following minimum values for at least 75% of the roof surface: See all forum discussions about this credit »What does it cost?
Cost estimates for this credit
On each BD+C v4 credit, LEEDuser offers the wisdom of a team of architects, engineers, cost estimators, and LEED experts with hundreds of LEED projects between then. They analyzed the sustainable design strategies associated with each LEED credit, but also to assign actual costs to those strategies.
Our tab contains overall cost guidance, notes on what “soft costs” to expect, and a strategy-by-strategy breakdown of what to consider and what it might cost, in percentage premiums, actual costs, or both.
This information is also available in a full PDF download in The Cost of LEED v4 report.
Learn more about The Cost of LEED v4 »Frequently asked questions
See all forum discussions about this credit »Documentation toolkit
The motherlode of cheat sheets
LEEDuser’s Documentation Toolkit is loaded with calculators to help assess credit compliance, tracking spreadsheets for materials, sample templates to help guide your narratives and LEED Online submissions, and examples of actual submissions from certified LEED projects for you to check your work against. To get your plaque, start with the right toolkit.
Get the inside scoop
Our editors have written a detailed analysis of nearly every LEED credit, and LEEDuser premium members get full access. We’ll tell you whether the credit is easy to accomplish or better left alone, and we provide insider tips on how to document it successfully.
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Option 1
Select a LEED certified building (5 points).OR
Option 2
Locate the tenant space in a building that has in place 1 or more of the following characteristics at time of submittal (1 – 5 points). Each of the following options may also be met by satisfying the requirements of the corresponding LEED 2009 for New Construction credit.Path 1. Brownfield Redevelopment (1 point)
A building developed on a site documented as contaminated by an ASTM E1903-97 Phase II Environmental Site Assessment or a local voluntary cleanup program. Projects outside the U.S. may use a local equivalent to ASTM E1903-97 Phase II Environmental Site Assessment. OR A building on a site classified as a brownfield by a local, state, tribal or national government agency, whichever is most stringent. Effective remediation of site contamination must have been completed.Path 2. Stormwater design - quantity control (1 point)
A building that prior to its development had less than or equal to 50% imperviousness and has implemented a stormwater management plan that is equal to or is less than the predevelopment 1-1/2 year 24-hour rate and quantity discharge. OR A building that prior to its development had more than 50% imperviousness and has implemented a stormwater management plan that reduced predevelopment 1-1/2 year 24-hour rate and quantity discharge by 25% of the annual on-site stormwater load. This mitigation can be achieved through a variety of measures such as perviousness of site, stormwater retention ponds, and harvesting of rainwater for reuse. Stormwater values are based on actual local rainfall unless the actual exceeds the 10-year annual average local rainfall, in which case the 10-year annual average should be used.Path 3. Stormwater design - quality control (1 point)
A building that has in place site stormwater treatment systems designed to remove at least 80% of the average annual site area’s total suspended solids (TSS) and 40% of the average annual site area’s total phosphorus (TP). These values are based on the average annual loadings from all storms less than or equal to the 2-year, 24-hour storm. The building must implement and maintain best management practices (BMPs) outlined in Chapter 4, Part 2, Urban Runoff, of the EPA Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters, January 1993 (EPA 840-B-92-002) or the local government’s BMP document, whichever is more stringent.Path 4. Heat island effect - nonroof (1 point)
A building that provides shade (or will provide shade within 5 years of landscape installation), and/or uses light-colored or high-albedo materials with a solar reflectance index (SRI)1 of at least 29, and/or has open-grid pavement areas that individually or in total equal at least 30% of the site’s nonroof impervious surfaces, such as parking areas, walkways, plazas, and fire lanes. OR A building that has placed a minimum of 50% of parking spaces underground or covered by structured parking. OR A building that has an open-grid pavement system (less than 50% impervious) for 50% of the parking lot area.Path 5. Heat island effect - roof (1 point)
A building whose roofing has a solar reflectance index (SRI) of the following minimum values for at least 75% of the roof surface:XX%
Upgrade to LEEDuser Premium to see how many projects achieved this credit. Try it free »
