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Key Code References

Last updated October 11, 2024
By Emma Howland

City of Seattle

ADUs

  • Fire and Sound Separation: If an existing space (such as a basement) is being remodeled for use as an accessory dwelling unit, no sound or fire separation is required. Reference: Tip 116A
  • Criteria for Allowing 6′-4″ Ceiling height in Dwelling Units

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