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Berkeley BESO

For questions about the BESO Ordinance for Commercial buildings, talk to Chuck at 415-937-5046. Pegasus is not licensed for residential or multi-family buildings.

Berkeley’s Building Energy Saving Ordinance (BESO) requires building owners and homeowners to complete and publicly report comprehensive energy assessments to uncover energy savings opportunities.

Building SizeReport RequiredFrequency

The Energy Assessment for a house or building under 25,000 square feet is now due only at the time of sale

Filing fees range from $79 to $250 based on building size:

415-937-5046 BESO Energy Assessment Schedule and Fees

Building SizeFiling FrequencyFiling Fee
Houses (1-4 Dwelling Units)At time-of-listing for sale$79
Small Buildings (850-14,999 sq. ft.)At time-of-listing for sale$79
Medium Buildings (15,000 to 24,999 sq. ft)At time-of-listing for sale$152
Large Buildings (25,000+)Every 5 years$240


Certain exceptions, deferrals and extensions may apply, including an exemption from the energy assessment if the building achieves a ENERGY STAR score of 80 or more. For more additional exceptions, visit our BESO FAQ.

For more information about Berkeley's reporting requirements, call Chuck at 415-937-5046 or visit our BESO FAQ.