Substantial Alteration Legislation
October 1, 2025
On September 24, 2025, Mayor Harrell signed Ordinance 127299. This legislation makes permitting requirements easier for small businesses by removing 2021 Seattle Existing Building Code (SEBC) Section 311.1.1 substantial alteration requirements when the building or space has a gross area of 7,000 square feet or less. The legislation also: This… [ Keep reading ]