City of Berkeley - Energy Conservation Ordinance (California)

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Last modified on February 12, 2015.

Rules Regulations Policies Program

Place California

Name City of Berkeley - Energy Conservation Ordinance
Incentive Type Building Energy Code
Applicable Sector Commercial, Multi-Family Residential, Residential
Eligible Technologies Building Insulation, Caulking/Weather-stripping, Comprehensive Measures/Whole Building, Duct/Air sealing, Equipment Insulation, Lighting
Active Incentive Yes

Implementing Sector Local
Energy Category Energy Efficiency Incentive Programs

Date added to DSIRE 2007-03-22
Last DSIRE Review 2012-05-18

References DSIRE[1]


The City of Berkeley has an ordinance requiring certain energy conservation measures to be installed in residential and commercial properties upon the sale of the building or major renovations over $50,000 in valuation.

The Residential Energy Conservation Ordinance (RECO) requires the ceiling insulation to be R-30, sealed and insulated furnace ducts, insulated water heaters and hot water pipes, weatherstripping around all exterior doors, improved the lighting efficiency, and improved water efficiency. These measures must be installed by the seller at the time of sale, and the seller and/or licensed real estate agent or broker handling the sale is responsible for compliance with this code. The maximum required expenditure to bring a residential structure into compliance is three-quarters of one percent of the final sale price for a structure not containing more than two units. The maximum expenditure for structures containing three units or more is fifty cents per square foot. The maximum expenditure in the case of renovation of fifty thousand dollars or more is one percent of the renovation costs. Any required measures not installed as a result of the spending cap must be installed during future sales or renovations to the property until all measures have been installed.

The Commercial Energy Conservation Ordinance (CECO) requires commercial property owners selling or renovating their property to install a variety of energy conservation measures for HVAC equipment, water systems, lighting, commercial refrigeration equipment, motor-driven equipment and the building envelope. The maximum total cost of the energy conservation measures to be installed upon sale of a commercial building is the lesser of one percent of the assessed value prior to sale or one hundred fifty thousand dollars. Upon subsequent sales of the building, any remaining energy conservation measures shall be installed subject again to the expenditure limit. The maximum cost for measures installed upon a major renovation is the lesser of five percent of the total construction cost or one percent of the assessed value of the entire building prior to the renovation.

Incentive Contact

Contact Name Public Information Officer
Department City of Berkeley
Division Planning Department
Address 2120 Milvia Street

Place Berkeley, California
Zip/Postal Code 94704
Phone (510) 981-7762


Authorities (Please contact the if there are any file problems.)

Authority 1: Berkeley Municipal Code 19.72

Authority 2: Berkeley Municipal Code 19.16

Authority 3: CECO Self-Audit Guide

Authority 4: RECO Compliance Guide

  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)"