Berkeley has long been at the forefront of climate action. In 2006, voters overwhelmingly passed Measure G, committing the city to an 80% reduction in greenhouse gas emissions, from 2000 levels, by 2050.\u00a0<\/p>\n
Three years later, the city adopted its Climate Action Plan<\/a>, for new and existing buildings to achieve zero-net energy consumption through increased efficiency and the use of renewable energy sources.<\/p>\n What BESO compliance means<\/p>\n Under the new requirements, single-family homes, as well as buildings with up to four units, must earn a certain number of \u201ccredits\u201d when they change ownership. These credits come from energy efficiency and electrification upgrades, like installing heat pump HVAC systems and water heaters, solar panels with battery storage, improved insulation, electrical panel upgrades and EV chargers.<\/p>\n Sellers can no longer defer hiring an assessor to generate a home energy report and score. After receiving their score, they will now have a strategic choice: complete some number of efficiency upgrades to achieve the required six credits<\/a> before listing or defer compliance to the buyer by paying a non-refundable $2,500 deposit to the city.<\/p>\n \u201cThat deferral option is really important for sellers to understand,\u201d says Megan Micco, a Berkeley real estate agent with Compass. \u201cWhen you choose to defer, you\u2019re effectively giving the buyer a $2,500 credit \u2014 money that could otherwise be used for compliance upgrades or negotiated as part of your sale price.\u201d<\/p>\n Buyers are increasingly sophisticated about energy efficiency. They understand that an older gas furnace isn\u2019t just an environmental concern; it\u2019s a future expense they\u2019ll have to manage. BESO compliance is about more than checking a regulatory box; it means positioning one\u2019s home as a modern, clean energy property that aligns with where the market is heading.<\/p>\n This isn\u2019t just about selling in 2026<\/p>\n While BESO compliance is required at the time of sale, the broader conversation about electrification applies to all Berkeley homeowners, who will eventually face these decisions, whether they\u2019re planning to sell or not.<\/p>\n \u201cI encourage all my clients to think about their timeline proactively,\u201d Micco advises. \u201cIf your gas water heater is 8 years old, you might have a few years before it needs replacement. But in 2027, you won\u2019t be able to replace it with another gas unit. The question is: Do you wait until it fails and you\u2019re making decisions under pressure, or do you plan ahead, access current incentives, and make the upgrade on your terms?\u201d<\/p>\n Regional air quality regulations<\/p>\n Berkeley\u2019s BESO requirements aren\u2019t happening in isolation. In March 2023, the Bay Area Air Quality Management District (BAAQMD) adopted groundbreaking rules<\/a> to phase out the sale of gas furnaces and water heaters, which emit nitrogen oxide. Starting in 2027, only zero-NOx water heaters can be sold or installed in the Bay Area. In 2029 that applies to furnaces and in 2031, to large commercial water heaters.<\/p>\n![\"\"](\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/01\/Heat-Pump.jpg\")
This exterior compressor is one part of a heat pump HVAC system that provides both efficient heating and cooling. Courtesy of Megan Micco<\/p>\n
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A mini-split offers room-by-room temperature control along with lower utility bills. Courtesy of Megan Micco<\/p>\n![\"\"](\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/01\/Induction-Range.jpg\")
An electric induction range earns 2 of 6 credits toward BESO compliance. Courtesy of Megan Micco<\/p>\n