CS-2009 SSc1: Site Selection

  • NC_Schools_CS_SSc1_Type1_Site Selection Diagram

  • If you already have a site plan, this credit is cut-and-dried

    Typically, projects have already determined their site plan by the time the team begins considering LEED certification; if this is the case, you either have the credit or you don’t.

    If your project location has not yet been determined, you can use the credit requirements as an environmental screening process when choosing your site. If the site is determined but the site plan isn’t set, consider whether the placement of buildings, roads, and other hardscapes on the site will tip you to compliance or non-compliance.

    Previously developed or not?

    This credit is intended to protect sensitive land as defined in the credit language. It also encourages projects to use previously developed land, by allowing specific exemptions for the criteria on water bodies and floodplains. Portions of sites that have been developed, graded, or altered by direct human activities are considered “previously developed” for purposes of this credit. 

    Up until November 2011, portions of sites that had been "developed, graded, or altered by direct human activities" were considered “previously developed” for purposes of this credit—leaving open questions about whether agriculture or other human actions that left a mark on the landscape fell under the definition. A November 2011 addendum from USGBC made this definition more specific, however, defining previously developed as involving "paving, construction, and/or land use that would typically have required regulatory permitting to have been initiated." Furthermore, "current or historical clearing or filling, agricultural or forestry use, or preserved natural area use are considered undeveloped land."

    Documentation is easy—determining compliance can be hard

    Documenting this credit is relatively easy—in LEED Online, you simply check off several boxes signifying compliance.

    Whooping craneHabitat for endangered species such as the whooping crane is excluded from development in this credit. Photo – Sammy King, USGS Louisiana Cooperative Fish and Wildlife Research UnitActually verifying whether your project site meets the criteria can be a longer process, however. Check with the civil engineer on as many items as possible, then research any items that remain uncertain. The hardest items are generally determining if your land is prime farmland or considered habitat for threatened or endangered species. 

    International projects may find it even more difficult

    International projects must follow the definitions provided in U.S. standards, but determining compliance may be much more difficult because the mapping programs used to determine compliance are not available.

    For example, to determine whether a U.S. project is in the 100-year flood zone, you will need to use the mapping program provided on the Federal Emergency Management Agency (FEMA) website. International projects may not have the same definition of flood plain and may not have access to a similar mapping program, making it more difficult to determine compliance.

Legend

  • Best Practices
  • Gotcha
  • Action Steps
  • Cost Tip

Pre-Design

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  • If your project site has not yet been selected, use the credit criteria to select an environmentally appropriate site that will comply with the credit. Research site options as part of your normal due diligence. Do not develop sensitive areas of the site, or areas bordering on sensitive areas. 

  • Look for urban infill sites, which are most likely to meet the credit requirements and which can help you earn a number of other LEED Sustainable Sites credits (especially SSc2, SSc4.1, SSc4.2, and SSc4.4). 

  • If the project site is already selected, start researching each of the credit criteria to see if any part of the development—buildings, hardscape, roads or parking areas—impacts sensitive areas as defined by the credit language. Refer to the sections below for each of the main credit criteria. 

  • If your project does not meet all the criteria, check to see if the project footprint can be adjusted to avoid development in sensitive areas. For example, if a portion of your site is located within 100 feet of wetlands, do not develop on that portion of the site. Instead of having a larger building footprint, build up, with a smaller footprint.

  • It’s usually best to include this credit in the civil engineer’s scope of work, and include its requirements in the contract language. If the civil engineer does the permitting for stormwater, some of the same criteria will be researched, and the few additional items should not be difficult for them to assess. 

  • According to the credit criteria, you must avoid sensitive areas such as: 

    • prime farmland;
    • previously undeveloped land less than five feet above the 100-year flood plain;
    • land that is habitat for federal or state threatened or endangered species;
    • land within 100 feet of wetlands;
    • previously undeveloped land within 50 feet of a body of water, including seas, lakes, rivers, streams, and tributaries; 
    • or land that prior to purchase for this project was public parkland, excluding park authority projects. (Land of equal or greater value to the public parkland can be accepted in trade by the public land steward, however.)

  • Previously developed sites typically comply with the requirements of this credit and are exempt from meeting the requirements of flood-plain and water-body setback requirements. 

  • For purposes of this credit, “previously developed” indicates a site on which at least a portion has been altered by human activity. 

  • Typically, this is a no-cost credit, except for the research time needed to verify compliance, which will vary depending on the project. 

  • Locating your project site outside of a flood plain can lower your property insurance rates. 

  • If you develop in an urban or infill area on previously developed land, you will already have access to public utilities and may be near public transit. This can help your budget and offer a valuable amenity to building occupants. 

Schematic Design

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  • Determine whether any part of the project development (buildings, hardscape, roads or parking areas) may impact sensitive portions of the site.

  • Check with the civil engineer, who may already know if your project meets the requirements. If the civil engineer can provide only a few of the answers, also consult the landscape architect and architect, who may have already done some of this research. 

  • Finding existing information (rather than undertaking new studies) makes for the easiest documentation. The challenge is finding the information easily.

  • If the design team does not know all of the answers, someone involved in planning or environmental work in the local municipality may be the most helpful person to talk to. Seek out specialized municipal agencies for help on specific issues. 

  • When an aspect of your project site is in question, check the intent of the credit and the referenced standards that apply to your situation, and realize that rarely are there exemptions for this credit. As always, check the LEED Interpretations page for past CIRs and other scenarios in which the GBCI has made a ruling.

  • GBCI Tip: For international projects, be sure to include a narrative describing any special circumstances and/or how the project meets the intent of the credit if there are conflicts or lack of alignment with the credit requirements.

  • If you find your project does meet all the criteria after reviewing each one, you are ready to document the credit. To do so, you’ll simply need to provide information on your project location and check off appropriate boxes verifying credit compliance.

  • Retain files and printouts documenting each of the credit areas for future reference.

  • Prime Farmland

  • Determine whether your project is located on prime farmland. 

  • “Prime farmland” is defined by USDA in the United States Code of Federal Regulations, Title 7, Volume 6, Parts 400–699, Section 657.5 (citation 7CFR657.5): “Prime farmland is land that has the best combination of physical and chemical characteristics for producing food, feed, forage, fiber and oilseed crops, and is also available for these uses (the land could be cropland, pastureland, rangeland, forest land or other land, but not urban built-up land or water). It has the soil quality, growing season, and moisture supply needed to economically produce sustained high yields of crops when treated and managed, including water management, according to acceptable farming methods.” For the full definition and description of prime farmlands, see the National Archives and Records Administration for the Code of Federal Regulations; search by citation. See the Resources section for a link to the appropriate regulation.

  • Not all farmland is considered “prime”—dry, western ranges, for example, are typically excluded. Even if a site is being farmed, check whether it is prime according to USDA definitions.

  • As an initial step, search for prime farmland on the USDA website for your state or county. Some states and counties have more information than others, but you should be able to find a map of your county that delineates prime farmland from other types of uses.

  • If you are still unsure whether your project is located on prime farmland, look at the USDA Web Soils Survey map program through the Natural Resources Conservation Services (NRCS). See the Resources section for a link. Follow these steps:

    • Search by the state and county, or by the project address.
    • Define your area of interest (AOI) or project boundary.
    • Click on the tab for Soil Data Explorer and then on the tab for Suitabilities and Limitations for Use. 
    • Click on Land Classifications and then View Rating. This will provide you with a map delineating any areas of prime farmland. See the example of prime farmland research in the Documentation Toolkit; this example is for a compliant site that is not located on prime farmland. 

  • If you are unable to determine whether or not your site contains or is prime farmland, contact your local NRCS department for help. See the Resources tab for a link. 

  • Document the status of your site, using information from whatever source you find most useful. You will not need to submit this documentation for LEED, but it’s worth having on file.

  • 100-Year Flood Plain

  • If your site has been previously developed, you can skip the floodplain requirement. However, it’s still good practice to consider site development and design strategies to mitigate your project’s risk from flooding.

  • If your site has not been previously developed, determine whether it is lower than five feet above the 100-year floodplain elevation.

  • The 100-year floodplain, defined by FEMA, is the elevation to which a flood has a 1% chance of reaching or exceeding in a given year. (It is not the level of the most significant flood within a 100-year period.) So-called 100-year floods can occur many times within a 100-year period. 

  • As an initial step, search for the 100-year floodplain on the FEMA website for your project address. Some states and counties have more information than others, and a number of locations are not accessible through FEMA’s digital mapping program. See the Resources section for a link to the FEMA Map Viewer website.  

  • Go to the FEMA website and use their mapping tool (Map Viewer) to help you determine whether your project is in Zone A (the 100-year floodplain). See the example of FEMA 100-year floodplain research in the Documentation Toolkit. Use the following steps:

    • Search by your project address, or state and zip code.
    • Use the legend to determine whether your project is in Zone A. 
    • If your project is in Zone A, determine the elevation of the 100-year floodplain and see if your project is at least five feet above this elevation.
    • If your project is not located in Zone A, your site is in compliance.
    • If you zoom in to the state or county level first, you will be able to see data that may not be obvious at the address level; projects in areas corresponding to “DFIRM Data Availability” will have the most luck in easily determining their floodplain. 

  • If the FEMA website does not provide digital data for your project location, check with your local municipality or county to see if they have a mapping program or if they can provide you with guidance on where to look. For example, the city of Boulder, Colorado provides an eMap service for the 100- and 500-year floodplain. See the example of the City of Boulder’s 100-year floodplain research in the Documentation Toolkit.

  • Species on Federal or State Threatened or Endangered List

  • Determine whether your site is considered habitat for threatened or endangered species. Many people assume that their project is not located on threatened or endangered species habitat; however, you must do the research, as this is more common than you may think. 

  • According to the Endangered Species Act, “Endangered species means any species which is in danger of extinction throughout all or a significant portion of its range other than a species of the Class Insecta determined by the Secretary (of the Interior) to constitute a pest whose protection under the provisions of this Act would present an overwhelming and overriding risk to man…Threatened species means any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range.”

  • As an initial step, search the U.S. Fish & Wildlife Service website. It provides a Species Report that lists all endangered (E) and threatened (T) species by state, including both plants and animals. See the Resources section for a link to the U.S. Fish & Wildlife Service website, and see an example of the U.S. Fish & Wildlife Service Species Report for Colorado in the Documentation Toolkit. 

  • The list of endangered and threatened species will not provide you with any data specific to your site. The next likely place to start more detailed research is your city or county website, or a local conservancy or environmental group.

  • Each state also has a Natural Heritage Inventory program that records occurrences of important species and current habitat extents; these offices can usually create a site-specific report (typically for a fee) identifying species known to be present or historically spotted on your site. See the Resources section for a link to the NatureServe list of U.S., Canadian, and Latin American Natural Heritage Programs. In the Documentation Toolkit you can see an example of Colorado’s Natural Heritage Program site-specific report.

  • Wetlands

  • Determine whether your site has or is located within 100 feet of a wetland. 

  • Do not develop buildings, hardscape, roads or parking areas within 100 feet of wetlands.

  • As defined in EPA Regulation 40CFR230: “Wetlands consist of areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions.” 

  • As an initial step, search the U.S. Fish & Wildlife Service website for the National Wetlands Inventory mapping program. Through this program, you can download digital data, use the wetlands mapping program, or view wetlands on Google Earth. See an example of the National Wetlands Inventory mapping program in the Documentation Toolkit. See the Resources section for a link to the National Wetlands Inventory mapping program. 

  • Some small and site-specific wetlands may not be mapped. Look at the site with the civil engineer or ecologist to determine whether there are any wetlands located on your site. 

  • Water Bodies

  • If your site has been previously developed, you can skip the water bodies requirement.

  • If your site has not been previously developed, determine whether your site is located within 50 feet of any water bodies. Ensure that you do not develop in areas within 50 feet of a water body.

  • “Waters of the United States,” as defined by the Clean Water Act, are “all waters which are currently used, were used in the past, or may be susceptible to use in interstate or foreign commerce, including all waters which are subject to the ebb and flow of the tide; all interstate waters, including interstate ‘wetlands’; all other waters, such as intrastate lakes, rivers, streams (including intermittent streams), mudflats, sandflats, ‘wetlands,’ sloughs, prairie potholes, wet meadows, playa lakes, or natural ponds, the use, degradation, or destruction of which would affect or could affect interstate or foreign commerce including any such waters which are or could be used by interstate or foreign travelers for recreational or other purposes; from which fish or shellfish are or could be taken and sold in interstate or foreign commerce; or which are used or could be used for industrial purposes by industries in interstate commerce; all impoundments of waters otherwise defined as waters of the United States under this definition; tributaries of waters identified [in] this definition; the territorial sea; and ‘wetlands’ adjacent to waters (other than waters that are themselves wetlands) identified in… this definition.”

  • To determine whether your project site is located within 50 feet of a water body (sea, lake, river, stream, or tributary), use the FEMA website mapping tool, USDA Web Soils Survey map program, or Google Earth. See a Google Earth example in the Documentation Toolkit. See the Resources section for a link to the FEMA and USDA websites. 

  • Manmade ponds for stormwater and recreation do not count as “water bodies” for the purposes of this credit and are exempt from this requirement. However, manmade wetlands or water bodies developed for ecological restoration are not exempt from these requirements, and all development must be at least 50 feet away from these sensitive areas. 

  • Parkland

  • Determine whether your site, prior to acquisition for this project, was public parkland. Avoid developing land that prior to acquisition for the project was public parkland.

  • It should be easy to determine whether the land purchased for the project was previously parkland. If you’re not sure, check with the owner, developer, the relevant park authority, or the title history.

  • If the land was parkland in the past but was owned by an entity other than a park authority before it was purchased for your project, the site remains eligible for this credit. 

  • Development by a park authority for park purposes is acceptable and does not preclude your project from earning this credit (subject to other criteria). For example, an educational center built on the park grounds by the park authority is still eligible for the credit. 

  • If the purchased land was previously parkland, you may make a trade agreement for other parkland that is of equal or greater value. 

Design Development

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  • If your project site as a whole does not meet all the credit criteria but you still intend to attempt the credit, begin by verifying that no portion of the site that will be developed is located in sensitive areas or is within the given parameters for limited development. For example, if you have wetlands located on your site, be sure that your development is at least 100 feet away from them. 

Construction Documents

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  • If your project site as a whole does not meet all the credit criteria but you intend to attempt the credit based on special circumstances, be sure to include detailed project drawings delineating the sensitive areas and the development footprint. 

  • Include detailed site drawings and terms in contracts to ensure that any sensitive areas will be adequately protected during construction.

Construction

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  • Be sure the contractor understands the importance of any sensitive areas being protected, and your expectations for ensuring that protection. 

  • Verify that sensitive areas are being protected throughout construction.

Operations & Maintenance

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  • If your site does contain sensitive areas, be sure to provide a site map that delineates these areas. Ensure that any maintenance and grounds keeping does not infringe on these areas, and be sure to exclude them from any future building or development, even if not part of a LEED project. 

  • USGBC

    Excerpted from LEED 2009 for Core and Shell Development

    COPYRIGHT © 2009 BY THE U.S. GREEN BUILDING COUNCIL, INC. ALL RIGHTS RESERVED

    SS Credit 1: Site selection

    1 Point

    Intent

    To avoid the development of inappropriate sites and reduce the environmental impact from the location of a building on a site.

    Requirements

    Do not develop buildings, hardscapeHardscape consists of the inanimate elements of the building landscaping. Examples include pavement, roadways, stone walls, concrete paths and sidewalks, and concrete, brick, and tile patios., roads or parking areas on portions of sites that meet any of the following criteria:

    • Prime farmland as defined by the U.S. Department of Agriculture in the United States Code of Federal Regulations, Title 7, Volume 6, Parts 400 to 699, Section 657.5 (citation 7CFR657.5). Projects outside the U.S. may use a local equivalent.
    • Previously undeveloped land whose elevation is lower than 5 feet (1.5 meters) above the elevation of the 100-year flood as defined by the Federal Emergency Management Agency (FEMA), an equivalent local regulatory agency, or a professional hydrologist.
    • Land specifically identified as habitat for any species on federal or state threatened or endangered lists.Projects outside the U.S. may use a local equivalent.
    • Land within 100 feet (30 meters) of any wetlands as defined by the U.S. Code of Federal Regulations 40 CFR, Parts 230-233 and Part 22, or a local equivalent definition outside the U.S., and isolated wetlands or areas of special concern identified by state or local rule, OR within setback distances from wetlands prescribed in state or local regulations, as defined by local or state rule or law, whichever is more stringent.
    • Previously undeveloped land that is within 50 feet (15 meters) of a water body, defined as seas, lakes, rivers, streams and tributaries that support or could support aquatic life, recreation or industrial use, consistent with the terminology of the Clean Water Act.
    • Land that prior to acquisition for the project was public parkland, unless land of equal or greater value as parkland is accepted in trade by the public landowner (park authority projects and projects which are operated by and support the function of the park are exempt).

    Potential Technologies & Strategies

    During the site selection process, give preference to sites that do not include sensitive elements or restrictive land types. Select a suitable building location and design the building with a minimal footprint to minimize disruption of the environmentally sensitive areas identified above.

Web Tools

United States Department of Agriculture

You can search for prime farmland in your state and county. 

USDA Services – Center Locator

This site provides links to Natural Resources Conservation Service (NRCS) Centers for all states. If you cannot determine whether your property is located on prime farmland, contact your local center. 

USDA Web Soil Survey

This site can provide you with information on prime farmland, soil types, and location of water bodies. 

FEMA – Mapping Information Platform

The Map Viewer allows you to type in the project address and create a map that shows if your project is in the floodplain. You can also use this map to determine if your project is near a water body.

ESRI

This software company creates tools for geographic information systems (GIS) mapping. Its website includes an option to make a map of all flood areas within a user-defined location.

National Wetlands Inventory Mapper

Provides maps of regional wetlands.

Regional Wetlands Contacts

This website allows users to find the immediate wetlands contact for their region.

FEMA Regional Contacts

This website gives specific contact information by state and division of FEMA.

Publications

Title 7, Volume 6, Part 657, Section 657.5 of the US Code of Federal Regulations

This document provides the definition and explanation of prime farmlands. An abbreviated version is provided under Checklists, Schematic Design, Prime Farmland.

U.S. Fish & Wildlife Service – Species Reports

This website lists endangered and threatened species by state. 

NatureServe

This publication provides contact information for U.S., Canadian, and Latin American Natural Heritage Programs and Conservation Data Centers.

Glossary - HCFCD

Flood terminology glossary from the Harris County Flood Control District.

Organizations

Natural Resources Defense Council

NRDC uses law, science, and advocacy to protect wildlife and wild places and to ensure a safe and healthy environment.

100-Year Flood Level

Verify that your site is five feet or more above the 100-year flood level using FEMA data sources, or county data sources, as shown in these examples.

Proximity to Wetlands

Verify that the site is not within 100 feet of wetlands, as shown in this example, using verification based on National Wetlands Inventory data.

Proximity to a Water Body

Depending on whether the site is previously developedPreviously developed sites are those altered by paving, construction, and/or land use that would typically have required regulatory permitting to have been initiated (alterations may exist now or in the past). Previously developed land includes a platted lot on which a building was constructed if the lot is no more than 1 acre; previous development on lots larger than 1 acre is defined as the development footprint and land alterations associated with the footprint. Land that is not previously developed and altered landscapes resulting from current or historical clearing or filling, agricultural or forestry use, or preserved natural area use are considered undeveloped land. The date of previous development permit issuance constitutes the date of previous development, but permit issuance in itself does not constitute previous development." or not, meet the credit critera for distance from a water body, as shown in this example.

Prime Farmland

Check whether the site is located on prime farmland, as shown in this example using the National Cooperative Soil Survey website.

Endangered or Threatened Species

Verify that the site is not habitat for endangered or threatened species, using data and analysis such as in this example.

LEED Online Forms: CS-2009 SS

The following links take you to the public, informational versions of the dynamic LEED Online forms for each CS-2009 SS credit. You'll need to fill out the live versions of these forms on LEED Online for each credit you hope to earn.

Version 4 forms (newest):

Version 3 forms:

These links are posted by LEEDuser with USGBC's permission. USGBC has certain usage restrictions on these forms; for more information, visit LEED Online and click "Sample Forms Download."

Design Submittal

PencilDocumentation for this credit can be part of a Design Phase submittal.

8 Comments

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Adam Targowski Owner ATsec
Oct 24 2012
LEEDuser Member
577 Thumbs Up

farmland

In the past most of the site (around 48,000m2) was used as a farmland and a summer plot containing of little houses with little gardens (where people could grow vegetables or flowers). Now this area is neglected and most of the houses are abandoned and empty and the area is not being used by anyone. Can this project get 1 point for SS Cre1? I am concered about the prime farmland requirement.
I am also not sure if this land can be treated as prevously developed (also for other credits like SS Cre2 and).

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Tristan Roberts LEED AP BD+C, Editorial Director – LEEDuser, BuildingGreen, Inc. Nov 24 2012 LEEDuser Moderator

Adam, it sounds like a previously developedPreviously developed sites are those altered by paving, construction, and/or land use that would typically have required regulatory permitting to have been initiated (alterations may exist now or in the past). Previously developed land includes a platted lot on which a building was constructed if the lot is no more than 1 acre; previous development on lots larger than 1 acre is defined as the development footprint and land alterations associated with the footprint. Land that is not previously developed and altered landscapes resulting from current or historical clearing or filling, agricultural or forestry use, or preserved natural area use are considered undeveloped land. The date of previous development permit issuance constitutes the date of previous development, but permit issuance in itself does not constitute previous development." site. Regarding the farmland definition, the question isn't how the site has been used, but how it is defined under relevant government regulations.

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Adam Targowski Owner, ATsec Nov 27 2012 LEEDuser Member 577 Thumbs Up

I'm a little confused and I'm not sure if I get it right so please correct me if I'm wrong. I was reading a new definition of "previously developedPreviously developed sites are those altered by paving, construction, and/or land use that would typically have required regulatory permitting to have been initiated (alterations may exist now or in the past). Previously developed land includes a platted lot on which a building was constructed if the lot is no more than 1 acre; previous development on lots larger than 1 acre is defined as the development footprint and land alterations associated with the footprint. Land that is not previously developed and altered landscapes resulting from current or historical clearing or filling, agricultural or forestry use, or preserved natural area use are considered undeveloped land. The date of previous development permit issuance constitutes the date of previous development, but permit issuance in itself does not constitute previous development." site" and I understood that lands that were used for agricultural purposes in the past are qualified as undeveloped sites, did I get it right?

In my case there's a site that in majority was used as a farmland and a little part had some summer houses. Does it mean that, according to LEED, even if a small part of the site was developed in the past then the whole site is considered previously developed?

You mentioned goverment regulations, so can I consider the site as previously developed if a local goverment will define it in this way even if it's not previously developed according to LEED definitions?

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Tristan Roberts LEED AP BD+C, Editorial Director – LEEDuser, BuildingGreen, Inc. Nov 27 2012 LEEDuser Moderator

Adam, agricultural land is considered not previously developedPreviously developed sites are those altered by paving, construction, and/or land use that would typically have required regulatory permitting to have been initiated (alterations may exist now or in the past). Previously developed land includes a platted lot on which a building was constructed if the lot is no more than 1 acre; previous development on lots larger than 1 acre is defined as the development footprint and land alterations associated with the footprint. Land that is not previously developed and altered landscapes resulting from current or historical clearing or filling, agricultural or forestry use, or preserved natural area use are considered undeveloped land. The date of previous development permit issuance constitutes the date of previous development, but permit issuance in itself does not constitute previous development.".

Per the credit language above, if a portion of the site is previously developed, there are different rules for that portion versus portions that were not developed.

Government regulations are only relevant for farmland definitions, not development definitions. This also references the credit language.

Post a Reply
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Regina Ng
Jun 29 2012
LEEDuser Member
677 Thumbs Up

Previously developed land

More than 50% of our site is previously developedPreviously developed sites are those altered by paving, construction, and/or land use that would typically have required regulatory permitting to have been initiated (alterations may exist now or in the past). Previously developed land includes a platted lot on which a building was constructed if the lot is no more than 1 acre; previous development on lots larger than 1 acre is defined as the development footprint and land alterations associated with the footprint. Land that is not previously developed and altered landscapes resulting from current or historical clearing or filling, agricultural or forestry use, or preserved natural area use are considered undeveloped land. The date of previous development permit issuance constitutes the date of previous development, but permit issuance in itself does not constitute previous development." and the remaining is not developed.
In that case, should we considered our site as Previously Developed or undeveloped land?

Thanks

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Susann Geithner Director of Sustainability, HSB Architects & Engineers Jul 05 2012 LEEDuser Expert 7764 Thumbs Up

Regina if you click on the definition of previously developedPreviously developed sites are those altered by paving, construction, and/or land use that would typically have required regulatory permitting to have been initiated (alterations may exist now or in the past). Previously developed land includes a platted lot on which a building was constructed if the lot is no more than 1 acre; previous development on lots larger than 1 acre is defined as the development footprint and land alterations associated with the footprint. Land that is not previously developed and altered landscapes resulting from current or historical clearing or filling, agricultural or forestry use, or preserved natural area use are considered undeveloped land. The date of previous development permit issuance constitutes the date of previous development, but permit issuance in itself does not constitute previous development." here or you can also find that in the addendum to the reference guide 11/1/2011, you will probably find your answer. Basically if your site is less than 1 acre it doesn't matter how much was previously developed. If it's larger than the previously developed land needs to fall within the new building's footprint.

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Ben Tucker Dir. of Building Peformance & Renewable Energy Services Chapman Construction/Design
Aug 22 2011
LEEDuser Member
95 Thumbs Up

100 ft wetlands setback

Our site is previously developedPreviously developed sites are those altered by paving, construction, and/or land use that would typically have required regulatory permitting to have been initiated (alterations may exist now or in the past). Previously developed land includes a platted lot on which a building was constructed if the lot is no more than 1 acre; previous development on lots larger than 1 acre is defined as the development footprint and land alterations associated with the footprint. Land that is not previously developed and altered landscapes resulting from current or historical clearing or filling, agricultural or forestry use, or preserved natural area use are considered undeveloped land. The date of previous development permit issuance constitutes the date of previous development, but permit issuance in itself does not constitute previous development." and we will be performing a major renovation on the existing building. We appear to meet all the criteria for this credit with the exception perhaps of the wetlands setback. There are wetlands on one side of the property and a section of the existing ancillary parking lot infringes on the 100' setback. Our renovation work is limited to the building and the area immediately around the building footprintBuilding footprint is the area on a project site used by the building structure, defined by the perimeter of the building plan. Parking lots, parking garages, landscapes, and other nonbuilding facilities are not included in the building footprint.. No work is being performed on the ancillary parking lot. Although the parking in question is within the property line, it is outside our LEED project boundary. Is it possible for us to still pursue this credit ?

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Susann Geithner Director of Sustainability, HSB Architects & Engineers Aug 22 2011 LEEDuser Expert 7764 Thumbs Up

First I would check if the wetland, which you are refering to, is actually a wetland as defined by US Federal Regulations CFR 40. If that's the case, check for a CIRCredit Interpretation Ruling. Used by design team members experiencing difficulties in the application of a LEED prerequisite or credit to a project. Typically, difficulties arise when specific issues are not directly addressed by LEED information/guide (LEED InterpretationLEED Interpretations are official answers to technical inquiries about implementing LEED on a project. They help people understand how their projects can meet LEED requirements and provide clarity on existing options. LEED Interpretations are to be used by any project certifying under an applicable rating system. All project teams are required to adhere to all LEED Interpretations posted before their registration date. This also applies to other addenda. Adherence to rulings posted after a project registers is optional, but strongly encouraged. LEED Interpretations are published in a searchable database at usgbc.org.) in regards to existing buildings and your particular situation. I can't imagine that GBCI will deny you the credit, since the building is existing and you aren't adding anything within the setback distance. So you are following the intent, besides the new version of the LEED rating system 2012 I believe addresses this situation in your favor. That makes me think that the overall point of view on the issue.

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May 24 2013
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