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The Basis of Design (BOD) is a document that describes the design intent and performance criteria for a project. It must include the environmental, energy efficiency and sustainability goals that the project team has established, as well as the strategies and systems to achieve them. The BOD is part of the Integrative Process credit, which aims to foster collaboration and holistic thinking among the project stakeholders from the pre-design phase to the occupancy phase.

References: = [LEED v4: Building Design + Construction Guide], [Integrative Process Calculator], [Integrative Process credit].

Food gardens may be included or excluded from the calculations for Water Efficiency Credit, Outdoor Water Use Reduction, as per the project team’s discretion. If included, food gardens must be calculated using 100% potable water. If excluded, food gardens must be irrigated with 100% captured rainwater, recycled graywater, or water treated and conveyed by a public agency specifically for nonpotable uses. References:

Outdoor Water Use Reduction credit in LEED BD+C: New Construction v4.1 - LEED v4.11

LEED v4 BD+C WE Guide2

the local equivalent standard is more stringent than ASTM E1527-05

According to the LEED v4 Reference Guide for Building Design and Construction, a Phase I ESA is required for all projects, except for those located on previously developed land that has not been used for industrial, commercial, or agricultural purposes. The Phase I ESA must follow the ASTM E1527-05 standard or a local equivalent. However, if the local equivalent is more stringent than the ASTM standard, then the project must comply with the local equivalent. Therefore, if the new building project is located in a jurisdiction that has a more rigorous standard for Phase I ESA than ASTM E1527-05, then it must complete a new Phase I ESA, regardless of the previous ESA done for the certified facility.

References:

Reference Guide for Building Design and Construction v4 – Pages 81-821

LEED v4: Building Design + Construction Guide - U.S. Green Building Council2

Energy efficiency goals and training requirements are required to be present in the Owner’s Project Requirements (OPR) when applying the Integrative Process to a Building Design and Construction project. According to the LEED v4 BD+C Reference Guide, the OPR is a document that details the ideas, concepts, and criteria that are determined by the owner to be important to the success of the project 1. The OPR must include, among other things, the following information related to energy efficiency 1:

The owner’s energy performance goals and expectations

The owner’s requirements for energy metering and monitoring

The owner’s requirements for energy modeling and analysis

The owner’s requirements for commissioning and verification

The owner’s requirements for training and documentation

The other options are not required to be present in the OPR, as they are either related to other aspects of the project, such as codes and standards, interior finishes, or project team members, or they are not relevant to the Integrative Process, which focuses on early analysis of energy, water, and site systems 2.References: LEED v4 BD+C Reference Guide, Integrative Process Category, IPc Integrative Process, page 632.