Berkeley’s Building Energy Saving Ordinance (BESO)

BESO Overview:

  • BESO requires Berkeley building owners and homeowners to complete comprehensive energy assessments to uncover energy saving opportunities. The assessments are conducted by registered energy assessors who provide tailored recommendations on how to save energy and link building owners to incentives for energy efficiency upgrade projects.
  • Energy efficiency improvements are voluntary and encouraged.
  • BESO is required prior to sale of a house or whole building, except for large buildings over 25,000 square feet and on a phased-in schedule for all buildings, except houses.
  • BESO is required regardless of RECO or CECO compliance status.
  • Click HERE to go straight to Berkeley’s BESO website.