Table 1.
Add a second column, "Residential density (DU/hectare)," with the following values:
37 - 52
> 52
Add a second column, "Residential density (DU/hectare)," with the following values:
37 - 52
> 52
LEEDuser’s viewpoint
Explore this LEED credit
Post your questions on this credit in the forum, and click on the credit language tab to review to the LEED requirements.
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
OPTION 1. Development footprint on previously developed land
Locate 100% of the development footprint on areas that are previously developed and for which 100% of the construction impact zone is previously developed.OR
OPTION 2. Undeveloped portion of project left undisturbed
Depending on the density of the project, do not develop or disturb a portion of the land that has not been previously developed on the site, exclusive of any land preserved by codified law or a prerequisite of LEED for Neighborhood Development; or exempt areas designated as nonbuildable in land-use comprehensive plans and stipulate in covenants, conditions, and restrictions (CC&R) or other binding documents that the undisturbed area will be protected from development in perpetuity. Densities and minimum percentages are as follows (mixed-use projects must use the lowest applicable density or calculate a weighted average per the methodology in NPD Credit 2, Compact Development):Table 1. Minimum undeveloped area, by project density
|
Residential density (DU/acre) |
Residential density (DU/hectare) |
Minimum area left undisturbed |
|
|
|
|
|
20% |
|
15 – 21 |
37 – 52 |
.50 – 1.0 |
15% |
|
> 21 |
> 52 |
> 1.0 |
10% |
|
DU = dwelling unit; FAR = floor-area ratio. |
|||
AND
For all projects
Survey the site to identify the following:- Trees in good or excellent condition, as determined by an arborist certified by the International Society of Arboriculture (ISA).
- Any heritage or champion trees of special importance to the community because of their age, size, type, historical association, or horticultural value, as defined by a government forester.
- All trees larger than 6 inches (150 millimeters) in diameter at breast height (dbh, 4 feet 6 inches [1.4 meters] above ground).
- Any invasive tree species present on the site, and whether those trees threaten the health of other trees to be preserved on the site, as determined by an ISA-certified arborist.
- All heritage or champion trees and trees whose dbh exceeds 50% of the state champion dbh for the species.
- A minimum of 75% of all noninvasive trees (including the above) larger than 18 inches (450 millimeters) dbh.
- A minimum of 25% of all noninvasive trees (including the above) larger than 12 inches (300 millimeters) dbh if deciduous, and 6 inches (150 millimeters) dbh if coniferous.
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 »Addenda
7/1/2014 – Updated: 2/14/2015
Global ACP
Description of change:
Campus Applicable
No
Internationally Applicable:
Yes
11/1/2011
LEED Interpretation
Inquiry:
The proposed project site is located on a military base that has potentially unexploded ordnance on-site.Protection from potential detonation during construction is required by the federal government to shield pedestrians and existing housing across the street from the project site. As a part of the project, a detonation barrier is to be constructed prior to start of excavation. This barrier can be built using various material but must have substantial foundations and structural strength to withstand large explosion forces. After construction is completed, the detonation barriers would be deconstructed to allow access to the site.The project team is proposing to incorporate salvaged local material into the design of these barrier walls. May the salvaged material qualify for MR credit 2 Construction Waste Managementif recycled after deconstruction?
Ruling:
The project team has inquired whether materials used for a temporary (during construction) detonation barrier can be included within the construction waste management materials diverted since it is mandated to be built. If the temporary detonation barrier is recycled or salvaged after deconstruction, it meets the intent of MR Credit 2 (diversion from landfill and incineration) and may contribute towards construction waste management.
Campus Applicable
No
Internationally Applicable:
No
Documentation toolkit
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© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
OPTION 1. Development footprint on previously developed land
Locate 100% of the development footprint on areas that are previously developed and for which 100% of the construction impact zone is previously developed.OR
OPTION 2. Undeveloped portion of project left undisturbed
Depending on the density of the project, do not develop or disturb a portion of the land that has not been previously developed on the site, exclusive of any land preserved by codified law or a prerequisite of LEED for Neighborhood Development; or exempt areas designated as nonbuildable in land-use comprehensive plans and stipulate in covenants, conditions, and restrictions (CC&R) or other binding documents that the undisturbed area will be protected from development in perpetuity. Densities and minimum percentages are as follows (mixed-use projects must use the lowest applicable density or calculate a weighted average per the methodology in NPD Credit 2, Compact Development):Table 1. Minimum undeveloped area, by project density
|
Residential density (DU/acre) |
Residential density (DU/hectare) |
Minimum area left undisturbed |
|
|
|
|
|
20% |
|
15 – 21 |
37 – 52 |
.50 – 1.0 |
15% |
|
> 21 |
> 52 |
> 1.0 |
10% |
|
DU = dwelling unit; FAR = floor-area ratio. |
|||
AND
For all projects
Survey the site to identify the following:- Trees in good or excellent condition, as determined by an arborist certified by the International Society of Arboriculture (ISA).
- Any heritage or champion trees of special importance to the community because of their age, size, type, historical association, or horticultural value, as defined by a government forester.
- All trees larger than 6 inches (150 millimeters) in diameter at breast height (dbh, 4 feet 6 inches [1.4 meters] above ground).
- Any invasive tree species present on the site, and whether those trees threaten the health of other trees to be preserved on the site, as determined by an ISA-certified arborist.
- All heritage or champion trees and trees whose dbh exceeds 50% of the state champion dbh for the species.
- A minimum of 75% of all noninvasive trees (including the above) larger than 18 inches (450 millimeters) dbh.
- A minimum of 25% of all noninvasive trees (including the above) larger than 12 inches (300 millimeters) dbh if deciduous, and 6 inches (150 millimeters) dbh if coniferous.
