USGBC LEED-AP-ND - LEED AP Neighborhood Development (LEED ND)

The Natural Resources Conservation Service (NRCS), a division of the United States Department of Agriculture (USDA), is the agency responsible for identifying prime and unique soils in agriculture and other associated industries. Prime farmland is land that has the best combination of physical and chemical characteristics for producing food, feed, forage, fiber, and oilseed crops. The identification of such soils is crucial for ensuring that land development projects do not unnecessarily disturb valuable agricultural land. LEED credits often require consultation with NRCS or its local equivalent to verify the presence of prime soils and to make informed decisions about land use.

References:

LEED v4 for Neighborhood Development, Current Version

LEED Reference Guide for Neighborhood Development

To determine if a project qualifies for the Green Infrastructure and Buildings Credit related to Wastewater Management in LEED for Neighborhood Development (LEED-ND), the most relevant piece of information is theaverage amount of annual wastewater generatedby the project. This metric is essential because the credit focuses on minimizing the impact of wastewater on the environment, primarily through strategies such as reducing the volume of wastewater produced, treating wastewater on-site, and reusing treated wastewater.

Wastewater Generation and Management:The LEED-ND rating system encourages the efficient management of wastewater to minimize its environmental impact. Specifically, the Green Infrastructure and Buildings Credit requires that a project demonstrates effective strategies for managing and reducing the volume of wastewater generated annually. This involves calculating the total averageamount of wastewater generated by the community and assessing how much of it can be treated and reused on-site.

Credit Requirements:To earn the Wastewater Management credit, projects must typically show that they have reduced the amount of wastewater generated by at least 25% compared to baseline conditions or that they treat and reuse a significant portion of their wastewater on-site. This necessitates an accurate estimation of the average annual wastewater production to determine the appropriate strategies and technologies for meeting the credit's objectives.

Supporting Strategies:Projects may employ various methods to achieve this, including installing efficient plumbing fixtures, recycling graywater, using natural treatment systems (like constructed wetlands), or connecting to high-efficiency municipal treatment facilities. However, all these strategies hinge on an understanding of the total wastewater volume generated, making this the most critical data point.

The LEED Reference Guide for Neighborhood Development (LEED ND) provides comprehensive criteria and methodologies for calculating the average wastewater generation and determining credit eligibility.

TheGreen Infrastructure and Buildingssection of the LEED v4 for Neighborhood Development rating system further outlines the specific requirements and point allocations for wastewater management strategies.

Detailed Explanation:References:For more detailed guidance and examples, refer to the LEED-ND Reference Guide available at the USGBC's resources section:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

This detailed assessment is crucial in ensuring that a project can meet the sustainability goals required for LEED certification under the Green Infrastructure and Buildings Credit for Wastewater Management.

For the Neighborhood Pattern and Design Credit on Visitability and Universal Design, incorporating features that enhance accessibility and usability for all individuals, regardless of physical ability, is crucial. Easy-touch rocker or hands-free switches contribute directly to this credit as they make it easier for individuals with physical disabilities, such as limited hand strength or dexterity, to operate lighting and other controls. These features align with the principles of universal design, which aim to make spaces more inclusive. Options like easy-to-reach door knobs or motion sensors, while beneficial, do not directly address the needs of individuals with disabilities as effectively as the easy-touch switches.

For a site to qualify as an infill site under LEED for Neighborhood Development, at least 75% of the boundary must border parcels that are developed, meaning they have been previously disturbed by human activity. In this scenario, the addition of a library on a parcel that is 75% developed on the west side of the site would meet the criteria for an infill site because it would ensure that the site is surrounded by developed parcels.

Infill Development Criteria:Infill development is central to the LEED-ND program as it encourages the use of land within existing urban areas rather than contributing to urban sprawl. The requirement that 75% of the boundary borders developed parcels ensures that the site is integrated into an already developed area, making it easier to connect to existing infrastructure and services.

Development Status of Parcels:The key factor in determining whether a site qualifies as infill is the extent of development on adjacent parcels. A parcel is considered developed if a significant portion (typically 50% or more) has been altered by human activity, such as buildings, roads, or other infrastructure.

Scenario Analysis:In the given scenario:

North: Forest land (undeveloped)

East: Church (100% developed)

South: School (50% developed)

West: The library (75% developed)

Detailed Explanation:The addition of the library on a 75% developed parcel ensures that the site meets the infill criteria, as it increases the percentage of the boundary that is adjacent to developed parcels.

The LEED-ND Reference Guide provides criteria for what constitutes infill development under the Smart Location & Linkage (SLL) category.

Detailed guidelines and examples can be found in theLEED v4 Neighborhood Developmentdocumentation, which clarifies the requirements for infill sites.

References:For more comprehensive information, consult the following resources:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

The Smart Location and Linkage (SLL) Prerequisite for Smart Location in LEED for Neighborhood Development can be met in several ways, including locating the project in a receiving area for a Transfer of Development Rights (TDR) program. A TDR program allows development rights to be transferred from areas designated for conservation (sending areas) to areas more suitable for development (receiving areas). If a project is located in a receiving area, it supports regional goals of conserving land and directing development to appropriate locations, which aligns with the LEED ND Smart Location prerequisite.

References:

LEED v4 for Neighborhood Development, Current Version

LEED Reference Guide for Neighborhood Development

The Federal Emergency Management Agency (FEMA) provides flood maps that the LEED for Neighborhood Development project team would need to prepare as an exhibit for an upcoming zoning commission meeting. For projects outside the U.S., the equivalent local agency would provide similar data.

Flood Maps and FEMA:FEMA is the primary agency responsible for creating and maintaining flood hazard mapsin the United States. These maps delineate areas that are at risk of flooding, typically including 100-year and 500-year floodplains. These maps are crucial for urban planning and compliance with federal regulations, such as those related to flood insurance.

Purpose of Flood Maps:Flood maps are used to identify areas that are prone to flooding, which is essential for ensuring that new developments are sited in locations that minimize flood risk. In the context of LEED-ND, these maps help determine whether the project site complies with floodplain avoidance prerequisites and credits.

Local Equivalents:Outside the United States, similar agencies may exist to provide flood risk information. These agencies follow local regulations and standards but serve the same purpose as FEMA in helping to mitigate the risks associated with flooding.

The LEED Reference Guide for Neighborhood Development provides information on the requirements for floodplain avoidance and the documentation needed, including flood maps.

TheLEED v4 Neighborhood Developmentdocumentation offers further guidance on how to use flood maps in the certification process.

Detailed Explanation:References:For additional reference, consult:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

The Smart Location and Linkage Credit for Steep Slope Protection aims to protect steep slopes from development to prevent erosion, habitat destruction, and other environmental impacts. For a site with a significant portion of steep slopes, such as the described 2-acre area at a 50% slope, LEED ND guidelines typically allow only a smaller percentage of the site to be developed. In this scenario, 50% of the site may be developed, which corresponds to option A.

References:

LEED v4 Neighborhood Development Guide: This document outlines the requirements for protecting steep slopes and the allowable percentage of development based on slope severity (USGBC, LEED v4 Neighborhood Development Current Version).

LEED Reference Guide for Neighborhood Development: Provides detailed criteria for determining allowable development on steep slopes and the associated credits (USGBC, LEED Reference Guide for Neighborhood Development).

To achieve the Neighborhood Pattern and Design Credit for Community Outreach and Involvement, Option 1: Community Outreach during Preliminary Design, the project team must advertise and host at least one community meeting. Anopen stakeholder meetingis an example of a community meeting that is applicable towards this credit because it engages various stakeholders in the decision-making process and ensures that their input is considered during the preliminary design phase.

Community Outreach Requirement:LEED-ND emphasizes the importance of engaging the community and stakeholders early in the development process. The credit for Community Outreach during Preliminary Design requires the project team to conduct outreach efforts that solicit feedback and involve the community in shaping the project’s development.

Open Stakeholder Meeting:An open stakeholder meeting is designed to include a broad range of participants, such as residents, business owners, local officials, and other interested parties. This type ofmeeting allows for a diverse set of perspectives to be heard, ensuring that the project aligns with the needs and expectations of the community.

Credit Applicability:By hosting an open stakeholder meeting, the project team demonstrates a commitment to transparency and inclusivity, which are key principles of LEED-ND. This approach not only helps in achieving the credit but also fosters community support and can lead to better project outcomes.

The LEED-ND Reference Guide provides specific requirements and best practices for conducting community outreach and involvement, including how to structure and document meetings.

TheLEED v4 Neighborhood Developmentdocumentation offers further clarification on what constitutes a qualifying community meeting.

Detailed Explanation:References:For additional guidance, refer to:

LEED Reference Guide for Neighborhood Development

LEED v4 Neighborhood Development

These answers provide a comprehensive understanding of the requirements and best practices for achieving LEED-ND certification in these scenarios.

To be eligible for the Neighborhood Pattern and Design (NPD) Credit for Reduced Parking Footprint, a project must minimize the amount of land dedicated to parking. Specifically, this credit discourages parking lots located in front of buildings, as they detract from the walkability and pedestrian-friendly environment that LEED ND encourages. By removing the surface parking lot in front of the building, the project can improve its walkability, reduce the parking footprint, and better align with the credit requirements.

References:

LEED v4 for Neighborhood Development, Current Version

LEED Reference Guide for Neighborhood Development

The requirement for an infill site under LEED® Neighborhood Development is that at least 75% of the site’s boundary must border parcels that are individually at least 50% previously disturbed, and in aggregate, at least 75% of the boundary must be adjacent to previously disturbed parcels.This criterion supports the redevelopment of previously developed land and helps in reducing urban sprawl by encouraging the use of already impacted sites.

Infill Development:Infill development refers to the practice of developing vacant or underused parcels within existing urban areas that are already largely developed. LEED-ND promotes infill development as it typically results in more efficient land use, reduces the need for new infrastructure, and supports the revitalization of existing communities.

Previously Disturbed Parcels:A "previously disturbed" parcel refers to land that has been altered by previous development or human activities, making it more suitable for redevelopment without contributing to the loss of greenfield sites (undeveloped land).

Boundary Criteria:The specific requirement that 75% of the project’s boundary borders disturbed parcels ensures that the site is surrounded by areas that have already experienced some level of development. This aligns with LEED-ND’s goals of encouraging sustainable development patterns that optimize land use within existing urbanized areas.

The LEED-ND Reference Guide elaborates on the criteria for infill sites under the Smart Location & Linkage (SLL) category, particularly emphasizing the importance of reusing previously disturbed land.

TheLEED v4 Neighborhood Developmentdocumentation provides detailed definitions and examples to clarify what constitutes an infill site.

Detailed Explanation:References:For more information, review the materials available through USGBC:

LEED Reference Guide for Neighborhood Development