- Annette Crewz
LEED Existing Buildings Operations & Maintenance
The intent of LEED for Existing Buildings is to promote high-performance, healthy, durable,
affordable, and environmentally sound practices in existing buildings. It encourages owners
and operators of existing buildings to implement sustainable practices and reduce
environmental impact of their buildings over their functional life cycles.
For LEED for Existing Buildings certification, sustainable operations performance is being
measured for the building and site over a period referred to as the performance period. The
performance period is a continuous, unbroken time, without gaps. It must be a minimum of
three months for all prerequisites and credits except Energy and Atmosphere Prerequisite 2
Minimum Energy Efficiency Performance and Credit 1 Optimize Energy Performance, which
have a duration of one year.
There are many challenges in obtaining LEED for Existing Buildings certification, the following are some helpful tips we have learned along the way.
Onboarding consultants needs to happen during this phase
These consultants may be a Commissioning Agent (CxA) and energy consultant to assist with Energy and Atmosphere and Indoor Environmental Quality prerequisites and credits
Discovery Phase Investigation
Develop a process for the discovery phase that evidence-based
Obtain copies of existing policies and procedures
Speak with the User responsible parties
Evaluate the documentation and reporting/tracking capabilities
Provide reporting/tracking forms for User responsible parties as needed
Ask probing questions about compliance
Prepare a checklist for both the consultants and User responsible parties
Schedule audits and surveys to correspond with site visits and ensure that User responsible parties are scheduled as well
Performance Period Documentation
Monthly check-ins with consultants and User responsible parties.
Face time with the Client and User responsible parties
Review status of reporting/tracking
Perform audits as needed: waste, etc.
Perform surveys as needed: site, occupant, cleaning assessment, IAQ, etc.
These tips, among other strategies we employ, help our clients achieve a more sustainable
future using LEED for Existing Buildings. Have a project that could use some positive change? We’d love to hear from you.