LEED O+M is the version of LEED that certifies buildings already in use. It is run by the US Green Building Council, scored from measured energy, water, waste, transportation and occupant experience data, and renewed on a cycle rather than awarded once. Aqueduct's view is on the LEED compliance page.

How is LEED O+M different from LEED BD+C?

BD+C rates design and construction of a new building and does not expire. O+M rates how an occupied building performs and must be renewed. A common path is a design rating at completion, followed by an operations rating after the first full year in use.

Can a building certified under BD+C move to LEED O+M?

Yes. USGBC opens v5 recertification to occupied projects previously certified under BD+C or O+M. The building then needs a full year of operating energy and water data, which is where portfolio benchmarking with metered totals saves time at submission.

Can ENERGY STAR data feed a LEED submission?

LEED O+M energy performance can draw on the building's ENERGY STAR Portfolio Manager record, since both rely on twelve months of metered energy. Keeping one clean monthly dataset per building lets a team serve both programs and local benchmarking laws without separate data collection.

Glossary

Air quality standards

What is LEED O+M?

Definition

LEED O+M (Operations and Maintenance) is the US Green Building Council rating system for existing buildings, scoring actual operating performance rather than design intent.

Which buildings qualify

Per USGBC, O+M applies to whole buildings and interior spaces that have been fully operational and occupied for at least one year, from offices and schools to data centers and hotels. Projects track performance in Arc across five areas: energy, water, waste, transportation and human experience. LEED v5, launched in 2025, is the newest version, with v4.1 and v4 still available.

Expiry and recertification

USGBC's October 2025 guidance says LEED v5 O+M and LEED v4.1 certifications expire after three years, so recertification keeps the status active. To maintain recertification, projects enter annual energy and water data in Arc, and a previously certified project can earn a LEED Recertification credit.

Twelve complete months of energy and water

The weak point in an O+M submission is usually a gap: a missing month, an estimated bill or an unmetered wing. Aqueduct holds monthly energy and water totals per building from sub-meters, validates them against utility bills, and reports meter connectivity, so a gap is found while it can still be fixed.

What is LEED O+M?

Which buildings qualify

Expiry and recertification

Twelve complete months of energy and water

LEED O+M: common questions

See Aqueduct on your own facility.