855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 173

Extracted Content

Water Efficiency Prerequisite

MINIMUM WATER EFFICIENCY

WEp2

REQUIRED

New Construction Core and Shell

INTENT

To reduce potable water consumption and the associated energy consumption and carbon emissions required to treat and distribute water, and to preserve potable water resources through an efficiency-first approach.

REQUIREMENTS

Achievement pathways	Points
New Construction and Core and Shell	N/A
Minimum Fixture and Fittings Efficiency
Option 1. Prescriptive Path–Maximum Flush and Flow Rates	Option 1. Prescriptive Path–Maximum Flush and Flow Rates
OR	OR
Option 2. Performance Path–Calculated Reduction	Option 2. Performance Path–Calculated Reduction
AND	AND
Minimum Equipment Water Efficiency	Minimum Equipment Water Efficiency
AND	AND
Minimum Outdoor Water Use Efficiency	Minimum Outdoor Water Use Efficiency
Option 1. No Irrigation	Option 1. No Irrigation
OR	OR
Option 2. Efficient Irrigation	Option 2. Efficient Irrigation

Meet all minimum water efficiency requirements outlined below.

Minimum Fixture and Fittings Efficiency

Meet the following minimum water efficiency requirements for fixtures and fittings.

Core and Shell only These requirements must be met for the base building fixtures and fittings, appliances, equipment, process water, and outdoor water use. For tenant spaces, include manufacturer documentation for the base building’s fixtures and fittings, appliances, and equipment in IPp4: Tenant Guidelines .

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 163