Glossary
Building performance standards and benchmarking

What is LA EBEWE?

Definition

LA EBEWE, the Existing Buildings Energy and Water Efficiency program, requires covered Los Angeles buildings to benchmark energy and water yearly and complete audits and retro-commissioning every five years.

Which Los Angeles buildings are covered

The program sits in Division 97 of the Los Angeles Municipal Code. It covers privately owned buildings of 20,000 square feet or more and City-owned buildings of 7,500 square feet or more. The Department of Building and Safety (LADBS) administers it and identifies each property by an LADBS Building ID, which differs from the Portfolio Manager property ID.

Annual and five-year requirements

  • Benchmark reports covering the previous calendar year are due to LADBS by June 1 each year, prepared in Portfolio Manager.
  • Energy and water audits and retro-commissioning, or a declaration of exemption, are due every five years by December 1, with the year set by the Building ID.
  • A standalone parking structure above the size threshold needs its own Building ID and its own benchmark.

Measured findings for retro-commissioning

Retro-commissioning looks for equipment that does not run as intended. Where Smart Controls reach rooftop units over BACnet or Modbus, each unit twin reports setpoint attainment, comfort compliance and sequence exceptions. On the water side, the site water balance isolates unaccounted flow. The auditor arrives with a list of measured problems.

Questions

LA EBEWE: common questions

LA EBEWE is Los Angeles' existing buildings ordinance for energy and water, enforced by the Department of Building and Safety. It combines yearly benchmarking with a five-year cycle of audits and retro-commissioning, aimed at finding and fixing waste in buildings already in use. See benchmarking ordinances.

Retro-commissioning checks whether existing systems such as HVAC controls, schedules and setpoints operate as designed, then corrects what does not. Under EBEWE it is done by a qualified professional, and the findings feed the five-year compliance report alongside the energy and water audit.

LADBS accepts a declaration of exemption in place of the audit and retro-commissioning when a building meets the criteria in Division 97. Owners still benchmark every year, so measured energy and water data stays necessary even for exempt buildings.

Interval energy and water data, equipment operating records and a list of known faults. Aqueduct supplies these from meters and connected HVAC, along with fault detection findings, so the auditor spends time on solutions instead of logging equipment for weeks.

See Aqueduct on your own facility.

Bring a site, a utility bill or a question. We will show you where the loss is.