The Seattle City Council unanimously approved rules requiring roughly 4,100 existing buildings of more than 20,000 square feet to slash their greenhouse gas emissions to zero by 2050. Mayor Bruce Harrell is scheduled to sign the bill into law on Wednesday.
The Seattle Building Emissions Performance Standard would apply to structures including skyscrapers, low- to high-rise buildings, multifamily residences, retail spaces, restaurants, churches, schools and universities, and community centers.
The region is experiencing the negative impacts of climate change, including extreme heat, drought and smoke from wildfires. Buildings account for 37% of Seattle’s carbon emissions, behind transportation’s 61% contribution, according to data from the city. The greenhouse gas sources in buildings are primarily oil and natural gas, including fossil fuel-powered furnaces and water heaters, gas stoves, and fuel leaks from pipes and storage tanks. The new rules are expected to cut emissions from the city’s buildings by 27% by mid-century.
City leaders held more than 125 stakeholder meetings over multiple years to get input on the rules. The measure won support from environmental and climate organizations, organized labor, building professionals and affordable housing providers.
The standards roll out gradually over time, requiring property owners to measure a building’s energy use and greenhouse gas emissions, document its existing performance and equipment, and then make plans and take steps to reduce a building’s energy and carbon footprints.
The policy includes support to help building owners achieve the goals, and penalties for those who fail to report or meet targets.
